Herbarium LE - Specimens

Rubiaceae

Ophiorrhiza sp.

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden.

Terrestrial and lithophytic herb to 1 m tall in shady places between limestone rocks. Occasional.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1819.

All photos © - L. Averyanov, K.S. Nguyen

Araceae

Sauromatum horsfieldii Miq.

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden. Terrestrial and lithophytic herb in shady places between limestone rocks. Spathe outside olive green. Common.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1818.

All photos © - L. Averyanov, K.S. Nguyen

Convallariaceae

Ophiopogon intermedius D.Don

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l.

Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden. Terrestrial and lithophytic herb in shady places between limestone rocks. Flowers light violet to almost white, anthers light greenish. Common. 26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1817.

All photos © - L. Averyanov, K.S. Nguyen

Gesneriaceae

Paraboea sp. nov.?

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden. Lithophytic herb in crevice of shady limestone cliff. Flowers dark violet, anthers white. Not common.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1816.

All photos © - L. Averyanov, K.S. Nguyen

Convallariaceae

Ophiopogon pingbienensis F.T.Wang & L.K.Dai

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden. Terrestrial and lithophytic herb in shady placed between mossy rocks. Flowers light violet, anthers light greenish. Locally common.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1815.

All photos © - L. Averyanov, K.S. Nguyen

Asteraceae

Lactuca sp. s.l.

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden. Erect terrestrial and lithophytic herb to 1.5 m tall on shady rocky slope. Flowers light violet. Common.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1814.

All photos © - L. Averyanov, K.S. Nguyen

Convallariaceae

Tupistra fungilliformis F.T.Wang & S.Yun Liang

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. nHumid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden. Lithophytic herb on top of large mossy limestone rock. Not common.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1813.

All photos © - L. Averyanov, K.S. Nguyen

Convallariaceae

Tupistra wattii Hook.f.

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden. Terrestrial and lithophytic herb in shady place between limestone rocks. Common.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1812.

All photos © - L. Averyanov, K.S. Nguyen

Urticaceae

Elatostema sp.

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden. Lithophytic herb on shady mossy limestone cliff. Flowers pale reddish. Occasional.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1811.

All photos © - L. Averyanov, K.S. Nguyen

Araceae

Arisaema sp.

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden.Terrestrial and lithophytic herb in shady mossy place between mossy limestone rocks. Spathe olive green with brown stripes. Common.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1810.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Tropidia angulosa (Lindl.) Blume,

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden. Terrestrial herb in grassy open place between mossy limestone rocks. Flowers white, lip yellow. Not common.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1809.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Goodyera schlechtendaliana Rchb.f.

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden. Terrestrial and lithophytic herb on open mossy limestone rocks. Occasional.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1808b (photo only).

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Dendrobium thyrsiflorum B.S.Williams

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garde. Epiphyte on tall tree. Flowers yellow, lip orange. Not common.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1808a (photo only).

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Cymbidium lancifolium Hook.

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden. Terrestrial and lithophytic herb in shady place between mossy limestone rocks. Flowers white, tepals with purple median stripe, lip white with purple spots. Not common.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1808.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Phaius flavus (Blume) Lindl.

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden. Terrestrial herb in shady place between mossy limestone rocks. Flowers pale yellow, lip yellow with orange-brown apical margin. Rare.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1807.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Hygrochilus parishii

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Wild collected plant cultivated in village. Epiphyte on tall trees. Sepals and petals pale yellow, with many large brown spots, lip pale violet to almost white. Not rare.

24 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1806.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Eria lasiopetala (Willd.) Ormerod

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Wild collected plant cultivated in village. Epiphyte on tall trees. Sepals and petals pale yellow, lip almost white with red epichile. Not rare.

24 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1805.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Renanthera imschootiana Rolfe,

Wild collected plant in the orchid garden of Hoang Lien National Park Headquarter in Sapa town, presumably collected in southern Vietnam. Lateral sepals bright red, median sepal and petals pale orange with many red markings distally. Very rare.

25 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1804 (photo only).

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Paphiopedilum emersonii Koop. & P.J.Cribb

Wild collected plant in the orchid garden of Hoang Lien National Park Headquarter in Sapa town, collected in northern Vientam. Flowers white, lip yellowish, staminode brown. Very rare.

25 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1803 (photo only).

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Dendrobium henryi Schltr.

Wild collected plant in the orchid garden of Hoang Lien National Park Headquarter in Sapa town, presumably collected in Hoang Lien Son Range at elevation 1500–2000 m a.s.l. Flowers uniform yellow. Rare.

25 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1802 (photo only).

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Dendrobium devonianum Paxton

Wild collected plant in the orchid garden of Hoang Lien National Park Headquarter in Sapa town, presumably collected in Hoang Lien Son Range at elevation 1500–2000 m a.s.l.

Sepals and petals white with purple apices, lip fimbriate, white with purple apex and 2 bright yellow spots at the center. Rare.

25 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1801 (photo only).

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Dendrobium densiflorum Wall.

Wild collected plant in the orchid garden of Hoang Lien National Park Headquarter in Sapa town, presumably collected in Hoang Lien Son Range at elevation 1500–2000 m a.s.l. Sepals and petals pale yellow, lip bright yellow. Common.

25 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1800 (photo only).

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Dendrobium chrysanthum Wall.,

Wild collected plant in the orchid garden of Hoang Lien National Park Headquarter in Sapa town, presumably collected in Hoang Lien Son Range at elevation 1500–2000 m a.s.l. Flowers entirely bright yellow, fragrant. Common.

25 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1799 (photo only).

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Coelogyne leucantha W.W.Sm.

Wild collected plant in the orchid garden of Hoang Lien National Park Headquarter in Sapa town, presumably collected in Hoang Lien Son Range at elevation 1500–2000 m a.s.l. Flowers white, lip with yellow spot at center. Common.

25 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1798 (photo only).

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Cleisostoma sp.nov.?

Wild collected plant in the orchid garden of Hoang Lien National Park Headquarter in Sapa town, presumably collected in Hoang Lien Son Range at elevation 1500–2000 m a.s.l.

25 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1797 (photo only).

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Liparis sp.

Wild collected plant in the orchid garden of Hoang Lien National Park Headquarter in Sapa town, presumably collected in Hoang Lien Son Range at elevation 1500–2000 m a.s.l.

25 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1796.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Thelasis pygmaea (Griff.) Lindl.

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Wild collected plant cultivated in village. Epiphyte on tall trees. Flowers buds light greenish. Not common.

24 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1795.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Aerides rosea Lodd. ex Paxton

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Wild collected plant cultivated in village. Epiphyte on tall trees. Sepals and petals white with light purple violet spots, lip purple violet. Not common.

24 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1794a.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Aerides falcata Lindl. & Paxton

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Wild collected plant cultivated in village. Epiphyte on tall trees. Sepals and petals light yellowish to almost white, lip white, apical part pale purple violet. Not common.

24 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1794.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Aerides odorata Lour.

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Wild collected plant cultivated in village. Epiphyte on tall trees. Sepals and petals white with light purple tint in center, lip white, median lobe pale purple violet. Not common.

24 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1793.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Rhynchostylis retusa (L.) Blume

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Wild collected plant cultivated in village. Epiphyte on tall trees. Sepals and petals white with light purple violet spots, lip purple violet. Not common.

24 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1792.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Papilionanthe teres (Roxb.) Schltr.

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Wild collected plant cultivated in village. Epiphyte on tall trees. Sepals and petals white with light purple tint, lip pink purple with orange center. Rare.

24 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1791.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Papilionanthe teres (Roxb.) Schltr.

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Wild collected plant cultivated in village. Epiphyte on tall trees. Sepals and petals white with light purple tint, lip pink purple with orange center. Rare.

24 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1791.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Dendrobium thyrsiflorum B.S.Williams

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Wild collected plant cultivated in village. Epiphyte on tall trees. Sepals and petals white, lip bright yellow. Occasional.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1790 (photo only).

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Dendrobium hercoglossum Rchb.f.

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Wild collected plant cultivated in village. Epiphyte on tall trees. Flowers light violet, lip almost white, anther with 2 dark violet spots. Occasional.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1789 (photo only).

All photos © - L. Averyanov, K.S. Nguyen

Asteraceae

Crassocephalum rubens (Jacq.) S.Moore

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Ruderal herb to 1 m tall in open places along road. Flowers blue. Very common.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1788.

Det.: A. Sennikov 23 May 2022

All photos © - L. Averyanov, K.S. Nguyen

Cucurbitaceae

Hodgsonia sp.?

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Herbaceous vine 8-10 m long. Flowers white. Not common.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1787.

All photos © - L. Averyanov, K.S. Nguyen

Magnoliaceae

Magnolia sp.

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Small tree. Not common.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1786a (photo only).

All photos © - L. Averyanov, K.S. Nguyen

Loranthaceae

Toxillus sp.

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Hemiparasitic shrub in canopy of tall tree with pendulous shoots to 4 m long. Fruits pale green. Not common.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1786.

All photos © - L. Averyanov, K.S. Nguyen

Begoniaceae

Begonia longifolia Blume

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Terrestrial herb to 1 m tall on steep rocky shady stream slope. Leaves uniform green. Flowers white, anthers yellow. Not rare.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1785.

All photos © - L. Averyanov, K.S. Nguyen

Rubiaceae

Mycetia sp.

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Terrestrial herb or undershrub to 1.2 m tall on steep rocky shady stream slope. Flowers yellow. Not rare.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1784.

All photos © - L. Averyanov, K.S. Nguyen

Poilypodiaceae s.l. (Marattiaceae)

Angiopteris evecta (G.Forst.) Hoffm.

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Terrestrial fern on steep rocky shady stream slope. Fronds to 1.2 m long. Occasional.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1783.

All photos © - L. Averyanov, K.S. Nguyen

Apocynaceae

Amalocalyx microlobus Pierre

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Semiwoody vine to 10 m long in open place along road. Flowers pink to light pink. Locally common.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1782.

All photos © - L. Averyanov, K.S. Nguyen

Polypodiaceae s.l.

Sphenomeris chinensis (L.) Maxon

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Terrestrial fern on wet steep mossy road cut. In shady place. Common.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1781.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Tropidia angulosa (Lindl.) Blume

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Terrestrial herb on steep shady rocky stream slope. Not common.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1780.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Pelatantheria ctenoglossum Ridl.?

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l.

Secondary evergreen broad-leaved lowland forest on mountain slopes composed with sandstone at elevations 550–650 m a.s.l. Epiphyte on tall tree. Not common.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1779.

All photos © - L. Averyanov, K.S. Nguyen

Trilliaceae

Paris polyphylla Sm. s.l.

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Erect terrestrial herb to 2 m tall. Flowers grassy green. Not common. Rhizomes widely collected for sale as an medicinal plant.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1778.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Dendrobium hercoglossum Rchb.f.⁣

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Epiphyte on tall tree. Flowers light violet, lip white, anther cap with two dark purple-violet spots. Not rare.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1777.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Rhynchostylis retusa (L.) Blume

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Epiphyte on tall tree. Flowers white, tepals with pale violet spots. Not common.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1776.

All photos © - L. Averyanov, K.S. Nguyen

Orchidaceae

Eria lasiopetala (Willd.) Ormerod

Dien Bien Prov., Muong Nhe Distr., Muong Nhe Natural Reserve, Chung Chai Municipality, near Doan Ket Bridge, around point about N22º17’16’’ E102º23’58”, elevation 550-650 m a.s.l. Epiphyte on tall tree. Flowers pale yellow. Keels on the lip reddish. Occasional.

20 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1775.

All photos © - L. Averyanov, K.S. Nguyen