Herbarium LE - Specimens

Gesneriaceae

Paraboea nutans D. Fang & D.H. Qin

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Lithophytic rosulate herb on shady mossy vertical cliff. Leaves dark green above, almost gray-white below. Not common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1569.

Orchidaceae

Podochilus khasianus Hook.f.,

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Lithophytic clustering herb on shady mossy rocks. Not rare. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1568.

Poaceae (Bambusoideae)

Vietnamcalamus sp.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Woody grass about 3 m tall on rocky top of mountain. Very common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1567.

Orchidaceae

Liparis bootanensis Griff.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Creeping lithophytic herb on shady mossy rocks. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1566.

Orchidaceae

Goodyera hispida Lindl.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Lithophytic creeping herb on shady mossy rocks. Leaves dull velvety green with light green median stripe and white nerves. Not common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1565.

Annonaceae

Mitrephora macclurei Weeras. & R.M.K. Saunders

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Tree 6-7 m tall in open rocky place. Flowers yellow, internal tepals light pale pink-purple. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1564.

Orchidaceae

Thelasis khasiana Hook.f.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Clustering epiphyte on old mossy tree. Occasional. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1563.

Orchidaceae

Bulbophyllum macraei Rchb.f.?

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Creeping epiphyte and lithophyte. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1562.

Orchidaceae

Bulbophyllum apodum Hook.f.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Creeping epiphyte and lithophyte. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1561.

Orchidaceae

Coelogyne fimbriata Lindl.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Creeping epiphyte and lithophyte. Flowers dull yellowish, lip with brown center. Very common.

11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1560.

Fagaceae

Quercus glauca Thunb.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Tree 7-10 m tall on mountain top. Seeds glossy green. Not common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1559.

Rubiaceae

Spiradiclis sp.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Terrestrial herb or undershrub to 1 m tall in open rpcky place. Flowers purple. Occasional. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1558.

FLORA OF VIETNAM

Plants of Phong Nha - Ke Bang National Park

Fam. Orchidaceae

Anoectochilus roxburghii (Wall.) Lindl.

Vietnam, Quang Binh Prov., Bo Trach Distr., Tan Trach Municipality, about 0.5 km to E of A Rem village (17º23'32''N, 106º12'46''E). Primary closed coniferous forest (with Calocedrus rupestris) on steep slopes and on tops of rocky ridge composed with solid marble-like highly eroded solid crystalline limestone at elevation about 750-850 m a.s.l. Creeping lithophytic herb in shady steep rocky slope. Leaves deep green with light yellowish network of nerves. Rare. (no collection, photo only).

No HAL 6203a 26 January 2005. Photo.

_______________________________________________

Collectors: L.Averyanov, P.K.Loc, P.V.The, A.Averyanova, N.T.Vinh, N.Q.Vinh, N.T.Binh.

FLORA OF VIETNAM

Plants of Phong Nha - Ke Bang National Park

Fam. Orchidaceae

Appendicula hexandra (Koenig) J.J.Smith ?

Vietnam, Quang Binh Prov., Bo Trach Distr., Tan Trach Municipality, about 1.5 km to SE of A Rem village (17º23'32''N, 106º12'46''E). Primary closed coniferous forest (with Calocedrus rupestris) on steep slopes and on tops of rocky ridge composed with solid marble-like highly eroded stratified crystalline limestone at elevation about 750-900 m a.s.l. Lithophyte and epiphyte (Calocedrus rupestris, Podocarpus neriifolius)on shady mossy vertical cliff. Very common.

No HAL 6134 25 January 2005. Photo.

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Collectors: L.Averyanov, P.K.Loc, P.V.The, A.Averyanova, N.T.Vinh, N.Q.Vinh, N.T.Binh.

FLORA OF VIETNAM

Fam. Orchidaceae

Bulbophyllum ambrosia (Hance) Schltr.

Vietnam, Ha Giang Prov., Quan Ba Distr, about 2 km to the NE of Quan Ba town, around point 23º05’49’’N, 105º01’00’’E at elevation about 1150 m a.s.l.

Primary coniferous forest with Calocedrus rupestris, Callitropsis vietnamensis and Pseudotsuga sinensis on rocky highly eroded marble-like limestone remnant mountains.

Creeping epiphyte on very steep mossy rocky slope. Flowers white, sepals with purple stripes. petals white with yellow to greenish tint, lip light yellow to white with purple markings. Very common.

No HAL 8352 6 Dec 2005. Photo.

______________________________________________

Collectors: L.Averyanov, P.K.Loc, T.V.Thao, P.V.The, N.S.Khang.

All photos © L. Averyanov

FLORA OF VIETNAM
Orchidaceae
Vanilla annamica Gagnep.?

Son La Prov., Yen Chau Distr., Muong Lum Municipality, Xao village, around point 20°59′54″N 104°38′47″E.

Broad-leaved and coniferous (with Pinus kwangtungensis and Calocedrus rupestris) evergreen forest on steep slopes and on tops of ridge composed with rocky crystalline solid marble-like highly eroded limestone at elev. 1100-1300 m a.s.l.

Creeping herbaceous epiphytic and lithophytic vine 5-8 m long on shady cliff. Rare.

HAL 9485 04 Nov. 2006
Coll.: Nguyen Tien Hiep, L.Averyanov, Pham Van The.

FLORA OF VIETNAM
Orchidaceae
Monomeria barbata Lindl.

Son La Prov., Yen Chau Distr., Muong Lum Municipality, Xao village, around point 20°59′54″N 104°38′47″E.

Broad-leaved and coniferous (with Pinus kwangtungensis and Calocedrus rupestris) evergreen forest on steep slopes and on tops of ridge composed with rocky crystalline solid marble-like highly eroded limestone at elev. 1100-1300 m a.s.l.

Creeping epiphytic and lithophytic vine along ridge edge. Flowers yellow with purple-brown marks. Abundant.

HAL 9486 04 Nov. 2006
Coll.: Nguyen Tien Hiep, L.Averyanov, Pham Van The.

FLORA OF VIETNAM
Plants of Phong Nha - Ke Bang National Park
Orchidaceae
Oberonia cavaleriei Finet

Vietnam, Quang Binh Prov., Bo Trach Distr., Tan Trach Municipality, about 1.5 km to SE of A Rem village (17°23′32′'N, 106°12′46′'E).

Primary closed coniferous forest (with Calocedrus rupestris) on steep slopes and on tops of rocky ridge composed with solid marble-like highly eroded stratified crystalline limestone at elevation about 750-900 m a.s.l.

Lithophyte on vertical cliff. Not common.

HAL 6160 25 January 2005.

Collectors: L.Averyanov, P.K.Loc, P.V.The, A.Averyanova, N.T.Vinh, N.Q.Vinh, N.T.Binh.

FLORA OF VIETNAM
Orchidaceae Juss.
Oberonia ensiformis (J.E.Smith) Lindl.

N. Vietnam, Son La prov., Moc Chau distr., Van Ho municipality, near
Hua Tat village (20°46′35′'N, 104°46′31′'E). Coniferous forest with
Pinus kwangtungensis, Podocarpus sp. and Calocedrus macrolepis along
remnant limestone highly eroded ridge at elev. 1400-1500 m a.s.l.
Lithophyte and occasional epiphyte. Not common.

DKH 7376 6 March 2001

Collectors: P.K.Loc, N.X.Tam, L. Averyanov.

FLORA OF VIETNAM

Fam. Orchidaceae Juss.

Panisea tricallosa Rolfe

N. Vietnam, Son La prov., Moc Chau distr., Van Ho municipality, near Hua Tat village (20ø46'35''N, 104ø46'31''E). Coniferous forest with Pinus kwangtungensis, Podocarpus sp. and Calocedrus macrolepis along

remnant limestone highly eroded ridge at elev. 1400-1500 m a.s.l. Epiphyte, mainly on Calocedrus macrolepis. Abundant.

No DKH 7364 6 March 2001

Collectors: P.K.Loc, N.X.Tam, L. Averyanov.

FLORA OF VIETNAM
Orchidaceae
Panisea tricallosa Rolfe

Son La Prov., Yen Chau Distr., Muong Lum Municipality, Xao village, around point 20°59′54″N 104°38′47″E.

Broad-leaved and coniferous (with Pinus kwangtungensis and Calocedrus rupestris) evergreen forest on steep slopes and on tops of ridge composed with rocky crystalline solid marble-like highly eroded limestone at elev. 1100-1300 m a.s.l.

Clustering epiphyte. Flowers white, lip with 2 yellow spots. Occasional.

HAL 9490 04 Nov. 2006 Photo.
Coll.: Nguyen Tien Hiep, L.Averyanov, Pham Van The.

FLORA OF VIETNAM
Plants of Phong Nha - Ke Bang National Park
Orchidaceae
Panisea uniflora (Lindl.) Lindl.

Vietnam, Quang Binh Prov., Bo Trach Distr., Tan Trach Municipality, about 1.5 km to SE of A Rem village (17°23′32′'N, 106°12′46′'E).

Primary closed coniferous forest (with Calocedrus rupestris) on steep slopes and on tops of rocky ridge composed with solid marble-like highly eroded stratified crystalline limestone at elevation about 750-900 m a.s.l.

Lithophytic herb on shady vertical cliffs and occasional epiphyte on Calocedrus. Flowers light dull yellow, lip dull orange. Common.

HAL 6114 25 January 2005. Photo.

Collectors: L.Averyanov, P.K.Loc, P.V.The, A.Averyanova, N.T.Vinh, N.Q.Vinh, N.T.Binh.

FLORA OF VIETNAM

Fam. Orchidaceae Juss.

Panisea yunnanensis

N. Vietnam, Son La prov., Moc Chau distr., Van Ho municipality, near Hua Tat village (20ø46'35''N, 104ø46'31''E). Coniferous forest with Pinus kwangtungensis, Podocarpus sp. and Calocedrus macrolepis along remnant limestone highly eroded ridge at elev. 1400-1500 m a.s.l. Epiphyte, mainly on Calocedrus macrolepis. Abundant.

No DKH 7364 6 March 2001

Collectors: P.K.Loc, N.X.Tam, L. Averyanov.

FLORA OF VIETNAM
Orchidaceae
Paphiopedilum dianthum Tang & F.T.Wang

Son La Prov., Yen Chau Distr., Muong Lum Municipality, Xao village, around point 20°59′54″N 104°38′47″E. Broad-leaved and coniferous (with Pinus kwangtungensis and Calocedrus rupestris) evergreen forest on steep slopes and on tops of ridge composed with rocky crystalline solid marble-like highly eroded limestone at elev. 1100-1300 m a.s.l. Clustering lithophytic herb on mossy open rocks along ridge edge. Common. Tree up to 20 m tall. Main dominant of coniferous forest along ridge edge and on ridge tops.
HAL 9500 04 Nov. 2006
Coll.: Nguyen Tien Hiep, L.Averyanov, Pham Van The.

VIETNAM

ORCHIDACEAE

Paphiopedilum hirsutissimum (Lindl. ex Hook. f.) Stein

Hoa Binh, Mai Chau District; Hank Kia Municipality; Thung Ang Village. Collections near village center and

behind dwellings. Also along transect from near cultivated fields up to ridgetop, degraded with logging forest

on rocky limestone. Steep slopes and evidence of large tree removal esp. Calocedrus macrolepis and Fokienia

hodginsii. 20°43'44"N 104°51'17"E 1108 m 4 Dec 2002

D.K. Harder, P.K. Loc, B. Hall, N.Q. Hung & P.H. Hoang 7748

Supported by National Geographic Society

MISSOURI BOTANICAL GARDEN HERBARIUM (MO)

FLORA OF VIETNAM
Orchidaceae
Pholidota missionariorum Gagnep.

Son La Prov., Yen Chau Distr., Muong Lum Municipality, Xao village, around point 20°59′54″N 104°38′47″E.

Broad-leaved and coniferous (with Pinus kwangtungensis and Calocedrus rupestris) evergreen forest on steep slopes and on tops of ridge composed with rocky crystalline solid marble-like highly eroded limestone at elev. 1100-1300 m a.s.l.

Lithophyte and epiphyte on old trees along ridge edge. Flowers light pinkish. Abundant.

HAL 9503 04 Nov. 2006
Coll.: Nguyen Tien Hiep, L.Averyanov, Pham Van The.

FLORA OF VIETNAM
Orchidaceae Juss.
Pholidota missionariorum Gagnep.

N. Vietnam, Son La prov., Moc Chau distr., Van Ho municipality, near
Hua Tat village (20°46′35′'N, 104°46′31′'E). Coniferous forest with
Pinus kwangtungensis, Podocarpus sp. and Calocedrus macrolepis along
remnant limestone highly eroded ridge at elev. 1400-1500 m a.s.l.
Epiphyte and lithophyte. Abundant.

DKH 7372 6 March 2001

Collectors: P.K.Loc, N.X.Tam, L. Averyanov.

FLORA OF VIETNAM
Orchidaceae Juss.
Pholidota sp.nov. ? (Ph. roseans aff.)

N. Vietnam, Son La prov., Moc Chau distr., Van Ho municipality, near
Hua Tat village (20°46′35′'N, 104°46′31′'E). Coniferous forest with
Pinus kwangtungensis, Podocarpus sp. and Calocedrus macrolepis along
remnant limestone highly eroded ridge at elev. 1400-1500 m a.s.l.
Lithophyte and occasional epiphyte. Abundant.

DKH 7358 6 March 2001

Collectors: P.K.Loc, N.X.Tam, L. Averyanov.

FLORA OF VIETNAM
Orchidaceae Juss.
Pholidota yunnanensis Rolfe

N. Vietnam, Hoa Binh prov., Da Bac distr., to the SW of Doan Ket
village (20°54′01′'N, 105°04′19′'E). Primary broad-leaved evergreen
forest with Calocedrus rupestris (?) along tops of remnant highly eroded
limestone ridge at elev. 900-1000 m a.s.l. Epiphyte and lithophyte.
Flowers white, anther orange. Very common.

HAL 375 29 March 2001

Collectors: N.T.Hiep, L.Averyanov, N.T.Vinh, D.T.Doan.

FLORA OF VIETNAM
Orchidaceae
Podochilus khasianus Hook.f.

Son La Prov., Yen Chau Distr., Muong Lum Municipality, Na Hat village, around point 21°00′37″N 104°30′06″E.

Broad-leaved (and former coniferous forest with Calocedrus rupestris) evergreen forest on steep slopes and on tops of ridge composed with rocky crystalline solid marble-like highly eroded limestone at elev. 900 m a.s.l.

Clustering Lithophyte on shady rocky slope. Flowers white. Very common.

HAL 9553 05 Nov. 2006
Coll.: Nguyen Tien Hiep, L.Averyanov, Pham Van The.

FLORA OF VIETNAM
Orchidaceae
Podochilus khasianus

Son La Prov., Yen Chau Distr., Muong Lum Municipality, Na Hat village around point 21°00′35”N 104°29′06”E.

Primary coniferous forest with Pinus kwangtungensis and Calocedrus rupestris on very steep rocky slopes of remnant mountain composed with highly eroded solid limestone at elevation 1000-1150 m a.s.l.

Lithophytic and epiphytic herb on vertical shady cliff. Common.

CPC 1879 1 April 2011
Coll.: L.Averyanov, N.T.Hiep, T.B.Ngan.

FLORA OF VIETNAM
Plants of Phong Nha - Ke Bang National Park
Orchidaceae
Podochilus khasianus Hook.f.

Vietnam, Quang Binh Prov., Bo Trach Distr., Tan Trach Municipality, about 1.5 km to SE of A Rem village (17°23′32′'N, 106°12′46′'E).

Primary closed coniferous forest (with Calocedrus rupestris) on steep slopes and on tops of rocky ridge composed with solid marble-like highly eroded stratified crystalline limestone at elevation about 750-900 m a.s.l.

Lithophyte on shady mossy vertical cliff. Very common.

HAL 6133 25 January 2005.

Collectors: L.Averyanov, P.K.Loc, P.V.The, A.Averyanova, N.T.Vinh, N.Q.Vinh, N.T.Binh.

FLORA OF VIETNAM
Plants of Phong Nha - Ke Bang National Park
Orchidaceae
Rhomboda petelotii (Gagnep.) Ormerod

Vietnam, Quang Binh Prov., Bo Trach Distr., Tan Trach Municipality, vicinities of A Rem village (17°23′22′'N, 106°12′47′'E).

Slightly logged primary closed evergreen coniferous forest (with Calocedrus rupestris) on steep slopes and tops of rocky ridge composed with solid marble-like highly eroded stratified crystalline limestone at elevation about 800-900 m a.s.l.

Terrestrial and lithophytic creeping herb. Leaves very deep green with 1 (3) white nerves. Not common.

HAL 6059 24 January 2005.

Collectors: L.Averyanov, P.K.Loc, P.V.The, A.Averyanova, N.T.Vinh, N.Q.Vinh, N.T.Binh.

FLORA OF VIETNAM
Orchidaceae
Stereochilus brevirachis Christenson

Son La Prov., Yen Chau Distr., Muong Lum Municipality, Na Hat village around point 21°00′35”N 104°29′06”E. Primary coniferous forest with Pinus kwangtungensis and Calocedrus rupestris on very steep rocky slopes of remnant mountain composed with highly eroded solid limestone at elevation 1000-1150 m a.s.l. Canopy epiphyte on old mossy tree. Occasional.
CPC 1853a 1 April 2011
Coll.: L.Averyanov, N.T.Hiep, T.B.Ngan.

Flowered under cultivation at May-June 2011. Tepals light pink-purple with median white stripe, lip white, side lobes yellow, epichile deep purple with median white stripe, column white, anther cap purple, beak white. Photos.

FLORA OF VIETNAM

Plants of Phong Nha - Ke Bang National Park

Fam. Orchidaceae

Vrydagzynea formosana Hayata.

Vietnam, Quang Binh Prov., Bo Trach Distr., Tan Trach Municipality, about 1.5 km to SE of A Rem village (17º23'32''N, 106º12'46''E). Primary closed coniferous forest (with Calocedrus rupestris) on steep slopes and on tops of rocky ridge composed with solid marble-like highly eroded stratified crystalline limestone at elevation about 750-900 m a.s.l. Creeping lithophytic herb with uniform green leaves. Flowers white. Not common.

No HAL 6148 25 January 2005. Photo.

Collectors: L.Averyanov, P.K.Loc, P.V.The, A.Averyanova, N.T.Vinh, N.Q.Vinh, N.T.Binh.

Det. Averyanov, Leonid Vladimirovich at 25.01.2005.

FLORA OF VIETNAM

Plants of Phong Nha - Ke Bang National Park

Fam. Orchidaceae

Vrydagzynea formosana Hayata.

Vietnam, Quang Binh Prov., Bo Trach Distr., Tan Trach Municipality, about 1.5 km to SE of A Rem village (17º23'32''N, 106º12'46''E). Primary closed coniferous forest (with Calocedrus rupestris) on steep slopes and on tops of rocky ridge composed with solid marble-like highly eroded stratified crystalline limestone at elevation about 750-900 m a.s.l. Creeping lithophytic herb with uniform green leaves. Flowers white. Not common.

No HAL 6148 25 January 2005. Photo.

Collectors: L.Averyanov, P.K.Loc, P.V.The, A.Averyanova, N.T.Vinh, N.Q.Vinh, N.T.Binh.

Det. Averyanov, Leonid Vladimirovich at 25.01.2005.

FLORA OF VIETNAM

Plants of Phong Nha - Ke Bang National Park

Fam. Orchidaceae

Vrydagzynea formosana Hayata.

Vietnam, Quang Binh Prov., Bo Trach Distr., Tan Trach Municipality, about 1.5 km to SE of A Rem village (17º23'32''N, 106º12'46''E). Primary closed coniferous forest (with Calocedrus rupestris) on steep slopes and on tops of rocky ridge composed with solid marble-like highly eroded stratified crystalline limestone at elevation about 750-900 m a.s.l. Creeping lithophytic herb with uniform green leaves. Flowers white. Not common.

No HAL 6148 25 January 2005. Photo.

Collectors: L.Averyanov, P.K.Loc, P.V.The, A.Averyanova, N.T.Vinh, N.Q.Vinh, N.T.Binh.

Det. Averyanov, Leonid Vladimirovich at 25.01.2005

FLORA OF VIETNAM
Plants of Phong Nha - Ke Bang National Park
Orchidaceae
Vrydagzynea formosana Hayata.

Vietnam, Quang Binh Prov., Bo Trach Distr., Tan Trach Municipality, vicinities of A Rem village (17°23′22′'N, 106°12′47′'E). Slightly logged primary closed evergreen coniferous forest (with Calocedrus rupestris) on steep slopes and tops of rocky ridge composed with solid marble-like highly eroded stratified crystalline limestone at elevation about 800-900 m a.s.l. Terrestrial and lithophytic creeping herb. Leaves uniform green. Flowers white to light yellowish. Not common.
HAL 6058 24 January 2005.
Collectors: L.Averyanov, P.K.Loc, P.V.The, A.Averyanova, N.T.Vinh, N.Q.Vinh, N.T.Binh.

Det. Averyanov, Leonid Vladimirovich at 24.01.2005.

FLORA OF VIETNAM
Orchidaceae Juss.
Zeuxine nervosa (Wall. ex Lindl.) Benth. ex C.B. Clarke

N. Vietnam, Son La prov., Moc Chau distr., Van Ho municipality, near Hua Tat village (20°46′35′'N, 104°46′31′'E). Coniferous forest with Pinus kwangtungensis, Podocarpus sp. and Calocedrus macrolepis along remnant limestone highly eroded ridge at elev. 1400-1500 m a.s.l. Terrestrial and lithophyte. Leaves green with wide silver median stripe. Sepals green, petals and lip white. Rare.
DKH 7357 6 March 2001
Collectors: P.K.Loc, N.X.Tam, L. Averyanov.

FLORA OF VIETNAM

Fam. Orchidaceae

Zeuxine nervosa (Wall. ex Lindl.) Benth. ex Hook.f.

N. Viet Nam, Son La Prov., Yen Chau Distr., Muong Lum Muncipality, Lum village. Ridgetop with primary vegetation of Pinus kwangtungensis and Calocedrus macrolepis around point 21ø00'17"N, 104ø29'08"E at elev. 1242 m. Among rocks, on decayed wood. Stem stiff green with purple tint, leaves green, peduncle light green with white tomentum, bracts light green to red-brown at top, ovary light green, anther tepals green, inner tepals green at base white at tip and on lobes, two light green spots at center of lip. Rare.

3 March 2001. Collectors: D.K. Harder, P.K. Loc, N.T. Hiep, L. V. Averyanov, B. Tan, G.E. Schatz, S. Bodine, DKH 7225.

Det.: L. Averyanov, Aug. 2002.

Begoniaceae

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Lithophytic and terrestrial ephemeroid herb in. Not common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1575a.

Herbarium and photos prepared in 28 August 2020, L. Averyanov, T. Maisak, VR 1575.1. Rhizome very short fleshy white, petioles light pale pink, leaves above dark green with many irregular silvery marks, below pale greenish to almost white irregularly marked with purple, tepals white or white with very light purple tint, anther and stigma bright yellow, fruits grassy green with 3 triangular wings, median twice larger than two others.

Begoniaceae

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Lithophytic and terrestrial ephemeroid herb in. Not common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1575a.

Herbarium and photos prepared in 28 August 2020, L. Averyanov, T. Maisak, VR 1575.1. Rhizome very short fleshy white, petioles light pale pink, leaves above dark green with many irregular silvery marks, below pale greenish to almost white irregularly marked with purple, tepals white or white with very light purple tint, anther and stigma bright yellow, fruits grassy green with 3 triangular wings, median twice larger than two others.

FLORA OF VIETNAM

Fam. Orchidaceae

Coelogyne flaccida Lindl.⁣

N. Viet Nam, Son La Prov., Yen Chau distr., Muong Lum Municipality,

Lum village. Degraded secondary vegetation on limestone outcrops under

canopy of Pistachia and Calocedrus macrolepis around point 21ø00'47"N,

104ø29'30"E at elev. 900-1134 m. Epiphytic and lithphytic. Leaves

green, tepals light yellow to light orange, inner petals white on

rostellum, streaked in red on sides and yellow on lip, thick, musky,

sweet fragrance. Occasional.

2 March 2001. Collectors: D.K. Harder, P.K. Loc, N. T. Hiep, L. V.

Averyanov, G.E. Schatz, N. Q. Hieu, S. Bodine, DKH 7095. Det.: L.

Averyanov, Aug. 2002.

FLORA OF VIETNAM

Orchidaceae

Cheirostylis takeoi Schltr.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Lithophytic herb on mossy rocks. Not rare. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1550a.

Fl. et coll. in horto in 25 February 2021, by L. Averyanov & T. Maisak, VR 1550a.

FLORA OF VIETNAM

Fam. Orchidaceae Juss.

Dendrobium fimbriatum Hook.

N. Vietnam, Hoa Binh prov., Mai Chau distr., Hang Kia municipality,

near Thung Ang village, mountain Tao Xinh (20º43'43''N, 104º51'21''E).

Primary broad-leaved evergreen dry forest with Calocedrus rupestris (?)

on remnant limestone highly eroded ridge at elev 1000-1100 m a.s.l.

Lithophytic herb up to 0.5 m hg on vertical cliffs. Flowers yellow,

lip with dark chestnut spot at the center. Very common.

No HAL 628 6 April 2001

Collectors: N.T.Hiep, L.Averyanov, N.T.Vinh, D.T.Doan.

FLORA OF VIETNAM

Orchidaceae

Dendrobium jenkinsii

Son La Prov., Yen Chau Distr., Muong Lum Municipality, Xao village, around point 20º59’54’’N 104º38’47’’E.

Broad-leaved and coniferous (with Pinus kwangtungensis and Calocedrus rupestris) evergreen forest on steep slopes and on tops of ridge composed with rocky crystalline solid marble-like highly eroded limestone at elev. 1100-1300 m a.s.l. Creeping epiphyte (particularly on Calocedrus rupestris) Common.HAL 9488 04 Nov. 2006

Coll.: Nguyen Tien Hiep, L.Averyanov, Pham Van The.