Herbarium LE - Specimens

FLORA OF LAOS Convallariaceae Peliosanthes griffithii Baker Vientiane prov., Kasi distr., between San and Tham Tai villages, around point 19°17'47.9''N 102°08'58.9''E. Secondary broad-leaved evergreen dry forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 900-1000 m a.s.l. Terrestrial herb with thick large underground rhizome on shady rocky slope. Not rare. LA-VN 1648 25 March 2017 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.Maisak, Khamla Inkhavilay, Hongthong Southyvohanh, Pinmany Sisavath, Chanthala Cheuaysamphanh. Flowered in 24 May 2017. Flowers almost black, anthers white. Photos.

FLORA OF VIETNAM. Convallariaceae. Peliosanthes griffithii Baker. Son La Prov., Van Ho Distr., Chieng Xuan Municipality, Co Hong village, territory of Xuan Nha natural reserve, Pha Luong Mountain. Remnants of primary and secondary broad-leaved evergreen forest on very steep mountain slopes composed by brown sandstone at elevation 700-1000 m a.s.l. around point 20°42'14.2"N 104°43'53.9"E. Terrestrial herb on steep humid slope. Locally common. Leaves glossy emerald green. 12 November 2013 CPC 6962a. Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, N.D.Thang, L.D.Qui. Living specimen only. Flowered in cult. in Oct. 2014 and in Nov. 2015. Flowers almost black. Photos. GN 13260

FLORA OF LAOS Convallariaceae Peliosanthes densiflora Aver. et N.Tanaka sp.nov. Vientiane Prov., Kasi Distr., Thong Mout village, Num Pong Mt., around point 19°21’46.9”N 102°09’29.8”E. Primary and secondary broad-leaved evergreen forest on steep shale slopes along stream at elevation about 900 m. Terrestrial herb with leaves to 1 m long. Petiole 30-40 cm, leaf blade glossy uniform green on both sides, 14-18 cm long, 7-10 cm wide. Not rare. LA-VN 722 22 March 2013 Coll.: L.Averyanov, N.S.Khang, S.Lorphengsy Fl. In cult in 27 Nov. 2014. Averyanov L.

FLORA OF VIETNAM

FLORA OF VIETNAM Convallariaceae Peliosanthes griffithii Baker Son La Prov., Van Ho Distr., Chieng Xuan Municipality, Co Hong village, territory of Xuan Nha natural reserve, Pha Luong Mountain. Remnants of primary and secondary broad-leaved evergreen forest on very steep mountain slopes composed by brown sandstone at elevation 700-1000 m a.s.l. around point 20°42’14.2’’N 104°43’53.9’’E. Terrestrial herb on steep humid slope. Locally common. Leaves glossy emerald green. 12 November 2013 CPC 6962a Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, N.D.Thang, L.D.Qui Living specimen only. Flowered in cult. in Oct. 2014 and in Nov. 2018. Flowers almost black. Photos.

Coll.: NT Vinh, PK Loc, NT Vinh, NS Khang & BV H

FLORA OF LAOS Convallariaceae Peliosanthes argenteostriata Aver. & N.Tanaka Luang Prabang prov., Ngoy distr., Nong Khiew village, Ta Nang Non Mountain around point 20°33’29.2’’N 102°36’54.5’’E. Secondary semideciduous and evergreen dry forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 600-650 m a.s.l. Terrestrial herb to 1 m tall in shady place of rocky mountain slope. Flowers white with greenish tint. Common. LA-VN 1933 31 March 2017 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.Maisak, Vichith Lamxay, Koudkeo Phommachanh, Phizar Sayalath, Keooudone Souvannakhoummane.

FLORA OF LAOS Convallariaceae Peliosanthes argenteostriatum Aver. et N.Tanaka Laos, Khammouane prov., Nahin. Древостой включает: Hopea ferrea,Lagerstroemia cochinchinensis, Ailanthus malabarica, Xerospermum laoticum (по табличкам нац.парка). Лист с центральной светлой полоской. 251 м над ур. м., 18°13.149N, 104°32.266E. Е.Константинов K 214. Живой экземпляр, гербарий/фото 30.10.2013.

FLORA OF LAOS Convallariaceae Peliosanthes campanulata Wall. ex Baker Kham Mouan Prov., Bounlapha Distr., Thong Sam village, Hinnam No Protected Area, Pu Pha Song Mt. composed by sandstone, around point 17°35’13.2”N 105°47’49.8”E. Primary evergreen broad-leaved and mixed forest on W macroslope at elevation from 500 m to the mountain top elevated to 1425 m. Terrestrial herb on shady slopes at elevations 600-1000 m. Leaves very rigid, glossy green, rarely with unclear broad silverfish stripe. Common. LA-VN 288 09 March 2013, flowered in 10 Feb. 2017. L.Averyanov et al. d-EXSICCATES OF VIETNAMESE FLORA 0284/LA-VN 288 © L.Averyanov

FLORA OF VIETNAM Convallariaceae Ophiopogon pingbienensis F.T. Wang & L.K. Dai Ha Giang Prov., Bac Me Distr., Phieng Luong municipality, around Phieng Day village. Degraded primary broad-leaved humid evergreen forest along rocky canyon of small stream at the base of mountains composed with solid crystalline highly eroded limestone at elevation 900-1000 m a.s.l. around point 22°38’43.8’’N 105°19’19.8’’E. Terrestrial and lithophytic rosulate herb along stream rocks near water. Fruits glossy blue. Locally abundant. 14 November 2014 CPC 7469 / 14427 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz Flowered in 25 May 2018. Flowers dull pale violet. Photos. L. Averyanov

FLORA OF VIETNAM

FLORA OF LAOS NEW. Convallariaceae. Ophiopogon regnieri Bois. Xiangkhouang Prov., Kham Distr., Huad village, Phou tat Vinh mt., around point 19°32'31.6'N 103°39'40.4'E. Primary and secondary broad-leaved evergreen and semideciduous dry forest on very steep rocky slopes of limestone highly eroded mountains composed by solid marble like limestone at elev. 1200-1400 m a.s.l. Terrestrial and lithophytic herb on shady rocky mountain slope. Leaves with many dull yellowish transversely elliptic spots. Not rare. LA-VN 1045 / TM 1260 / 15158 4 April 2015. Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham. Flowered in 25 May 2018. Flowers almost white. Photos. L. Averyanov

FLORA OF LAOS Convallariaceae Ophiopogon platyphyllus Merr. & Chun Houphan Prov., Viengxay Distr., Vieng Xai village, around point 20°23'41.3''N 104°13'44.5''E. Primary and secondary broad-leaved evergreen dry forest on very steep rocky slopes of highly eroded mountains composed by solid marble-like limestone at elev. 800-950 m a.s.l. Terrestrial and lithophytic stemless herb in limestone pockets on shady rocks. Leaves to 1 m long and 4 cm wide. Not rare. LA-VN 1125 / TM 1281 7 April 2015 Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Somneuk Bouthamounty. Flowered in cultivation in 4 May 2015 and 25 May 2018. Flowers white. Photos. L. Averyanov

FLORA OF VIETNAM. Convallariaceae. Peliosanthes griffithii Baker. Son La Prov., Van Ho Distr., Chieng Xuan Municipality, Co Hong village, territory of Xuan Nha natural reserve, Pha Luong Mountain. Remnants of primary and secondary broad-leaved evergreen forest on very steep mountain slopes composed by brown sandstone at elevation 700-1000 m a.s.l. around point 20°42'14.2"N 104°43'53.9"E. Terrestrial herb on steep humid slope. Locally common. Leaves glossy emerald green. 12 November 2013 CPC 6962a. Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, N.D.Thang, L.D.Qui. Living specimen only. Flowered in cult. in Oct. 2014 and in Nov. 2018. Flowers almost black. Photos. GN 13260

FLORA OF LAOS Convallariaceae Tupistra muricata (Gagnep.) N.Tanaka Xiangkhouang Prov., Kham Distr., Huad village, Phou tat Vinh mt., around point 19°32'31.6'N 103°39'40.4'E. Primary and secondary broad-leaved evergreen and semideciduous dry forest on very steep rocky slopes of limestone highly eroded mountains composed by solid marble like limestone at elev. 1200-1400 m a.s.l. Terrestrial herb on mountain slope. Locally very common. Fruits almost black. LA-VN 1041 4 April 2015. Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham. Living specimen: LA-VN 1041 / garden no 15171a, flowered 6 Dec. 2017 Coll. in garden in 6 Dec. 2017, by L. Averyanov, photos.

FLORA OF LAOS Hin Nam No Nature Protected Area Convallariaceae Tupistra siphonantha N.Tanaka, Vislobokov & D.P.Hannon Laos, Khammoune prov., Boualapha distr., Nong Seng village, Chanh Daeng mountain, around point 17°31'11.1"N, 105°46'41.4"E. Primary dry evergreen and semideciduous broad-leaved forest on very steep rocky slope near karstic hill top composed with solid, marble-like highly eroded limestone at 400-600 m a.s.l. Lithophytic herb with short thick plagiotropic rhizome on exposed rocks near mountain top. Very common at elevation 450-600 m a.s.l. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 983. Flowered 05 Nov 2018. Flowers white, photos, L. Averyanov

FLORA OF LAOS Hin Nam No Nature Protected Area Convallariaceae Aspidistra medusa Aver., K.S. Nguyen & Tillich Laos, Khammoune prov., Boualapha distr., Vang Maner village, Palai mountain area, around point 17°30'13.6"N, 105°49'23.9"E, 520 m a.s.l. Primary dry evergreen and semideciduous broad-leaved forest on sandy alluvial terrace and slopes of river valley between karstic limestone hills at 180-220 m a.s.l. Terrestrial herb with short underground rhizome on shady slope along river. Leaves uniform grassy green, flowers entirely white, stigma near margin sometime with light violet tint, fruits dark olive-green. Locally common. Flower buds (to be said) edible after boiling and cooking with local sauce. 8 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 813. d-EXSICCATES OF VIETNAMESE FLORA 0321 / AL 813 © L.Averyanov & K.S. Nguyen.

FLORA OF LAOS Hin Nam No Nature Protected Area Convallariaceae Aspidistra medusa Aver., K.S. Nguyen & Tillich Laos, Khammoune prov., Boualapha distr., Vang Maner village, Palai mountain area, around point 17°30'13.6"N, 105°49'23.9"E, 520 m a.s.l. Primary dry evergreen and semideciduous broad-leaved forest on sandy alluvial terrace and slopes of river valley between karstic limestone hills at 180-220 m a.s.l. Terrestrial herb with short underground rhizome on shady slope along river. Leaves uniform grassy green, flowers entirely white, stigma near margin sometime with light violet tint, fruits dark olive-green. Locally common. Flower buds (to be said) edible after boiling and cooking with local sauce. 8 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 813. d-EXSICCATES OF VIETNAMESE FLORA 0321 / AL 813 © L.Averyanov & K.S. Nguyen.

FLORA OF LAOS Hin Nam No Nature Protected Area Convallariaceae Aspidistra medusa Aver., K.S. Nguyen & Tillich Laos, Khammoune prov., Boualapha distr., Vang Maner village, Palai mountain area, around point 17°30'13.6"N, 105°49'23.9"E, 520 m a.s.l. Primary dry evergreen and semideciduous broad-leaved forest on sandy alluvial terrace and slopes of river valley between karstic limestone hills at 180-220 m a.s.l. Terrestrial herb with short underground rhizome on shady slope along river. Leaves uniform grassy green, flowers entirely white, stigma near margin sometime with light violet tint, fruits dark olive-green. Locally common. Flower buds (to be said) edible after boiling and cooking with local sauce. 8 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 813. d-EXSICCATES OF VIETNAMESE FLORA 0321 / AL 813 © L.Averyanov & K.S. Nguyen.

FLORA OF LAOS Convallariaceae Aspidistra khangii Aver. et Tillich, sp.nov. Type Attapeu Prov., Saysettha Distr., Dong Am Pham National Protected Area, to the E of Paosamphanmixay village, around point 14°48’24.8”N 107°24’23.2”E. Primary broad-leaved evergreen lowland dry forest on steep shaly hill slopes at elevation 700-920 m a.s.l. Terrestrial herb with ascending stem and erect leaves to 1.2 m long along mountain ridge in shady places. Very common to abundant. Old flowers dull brownish. LA-VN 104 28 February 2013 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, P.V.The, K.Inkhavilay, S.Lorphengsy

FLORA OF LAOS Convallariaceae Aspidistra khangii Aver. et Tillich, sp.nov. Type Attapeu Prov., Saysettha Distr., Dong Am Pham National Protected Area, to the E of Paosamphanmixay village, around point 14°48’24.8”N 107°24’23.2”E. Primary broad-leaved evergreen lowland dry forest on steep shaly hill slopes at elevation 700-920 m a.s.l. Terrestrial herb with ascending stem and erect leaves to 1.2 m long along mountain ridge in shady places. Very common to abundant. Old flowers dull brownish. LA-VN 104 28 February 2013 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, P.V.The, K.Inkhavilay, S.Lorphengsy

FLORA OF LAOS Convallariaceae Aspidistra khangii Aver, el Tillich Herbarium specimen prepared 8 September 2016 by L. Averyanov, LA-VN 104a from cultivated plant collected in Laos, Attapeu province, Saysettha district, Dong Am Pham National Protected Area, to the east of Paosamphanmixay village, around point 14°48'24.8"N, 107°24'23.2" E, primary broad-leaved evergreen forest at ca 900 m a.s.l., 28 Feb 2013, L. Averyanov et al., LA-VN 104 (plant used for preparation of the species type voucher herbarium specimens.

Convallariaceae Disporum trabeculatum Gagnep. Dja diem: Tinh Quang Tri, huyen Da Krong. xa Hue Nghi. Ban Кар (Trai I). 16°29’ B, 107^00’ D, do cao: 350-450 m C o cao l m. So hieu mlu: HLF 6051 Ngay thu mau: 25/3/2006 Nhirng ngiroi lay mau: N. Tap, Аг. V. Trai Mau vat duac thu thap vai sir tai tra cua Henry Luce Foundation

FLORA OF LAOS

FLORA OF LAOS

FLORA OF VIETNAM Convallariaceae Disporum sp. Thua Thien - Hue Prov., A Luoi Distr., Huong Nguyen municipality, around point 16°06'04"N 107°27'55"E. Pristine primary broadleaved and mixed (with Dacrycarpus imbricatus) evergreen forest along mountain ridge composed with shale at elev. about 1000 m a.s.l. Terrestrial herb to 1 m tall in shady places. Locally common. CPC 3088 12 May 2011 Coll.: L.Averyanov, P.K.Loc, N.Q.Hieu, P.V.The, N.T.Vinh.

FLORA OF VIETNAM

FLORA OF VIETNAM

FLORA OF VIETNAM

FLORA OF VIETNAM

FLORA OF VIETNAM

N. Tanaka note: Characterizedby the pedunculate inflorescences of a few flowers from leaf axils (inflorescencesnot confined to stem apices). This species has been recorded only from China.Flora of China treats D. pedunculatumas a synonym of D. calcaratum, butthese are quite different species. D.pedunculatum was described on the basis of specimens in fruit, and thus itsflowers need to be described.

FLORA OF VIETNAM Liliaceae s.l. (Convallariaceae) Disporum sp. Lai Chau Prov., Phong Tho Distr., Sin Suoi Ho Municipality, Sa Ma Pho village, around point 22°32'53"N 103°33'40"E. Secondary open evergreen broad-leaved forest and secondary woodlands on very steep mountain slopes composed predominantly with weathered granite at elev. about 1600-1800 m a.s.l. Terrestrial herb on shady wet rocky steep slope. Fruits black. Locally common. HAL 10562 11 Dec. 2006 Coll.: Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc, Pham Van The, N.T.Vinh.

FLORA OF VIETNAM

FLORA OF VIETNAM

FLORA OF VIETNAM Fam. Liliaceae s.l. (Convallariaceae) Disporum sp. N.Vietnam, Bac Kan Prov., Cho Don Distr., Ban Thi Municipality, village Phia Khao, around point 22°15'35"N, 105°31'17"E at elevation 800-900 m a.s.l. Remnants of primary broad-leaved evergreen closed wet forest on very steep slopes and cliffs of rocky ridges and mesae composed with solid marble-like stratified limestone. Terrestrial and lithophytic herb up to 1 m tall. Flowers light yellow-green, anthers yellow. Not rare. No HAL 4643 19 May 2004 Collectors: L.Averyanov, N.T.Hiep, P.V.The, N.T.Vinh.

N. Tanaka note: Characterizedby the pedunculate inflorescences of a few flowers from leaf axils (inflorescencesnot confined to stem apices). This species has been recorded only from China.Flora of China treats D. pedunculatumas a synonym of D. calcaratum, butthese are quite different species. D.pedunculatum was described on the basis of specimens in fruit, and thus itsflowers need to be described.

FLORA OF VIETNAM Fam. Convallariaceae Polygonatum sp. N. Vietnam, prov. Ha Giang, distr. Dong Van, municipality Ho Quang Phin, vicinities of Ta Xa village, 14-16 km to SSW of Dong Van town (N 23°16' E 105°22'). Primary very wet mossy cloud mixed forest (with domination of Tsuga chinensis and Pinus kwangtungensis) along tops of karst remnant limestone ridge at 1550-1600 m elev. Lithophyte herb up to 0.4 m hg on shady mossy rocks. Flowers greenish-white. Not rare. No CBL 1781 28 April 1999 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98) Collectors: P.K.Loc, P.H.Hoang, Averyanov L.

FLORA OF VIETNAM Convallariaceae Polygonatum sp. N. Vietnam, prov. Cao Bang, distr. Bao Lac, municipality Dinh Phung, Nam Linh mt. (N 22°47' E 105°49'). Old secondary broadleaved wet mossy cloud forest along tops of remnant karst limestone Nam Linh ridge at 1550-1600 m alt. Epiphyte. Flowers light yellowish-green. Not common. No CBL 1417 15 April 1999 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98) Collectors: P.K.Loc, P.H.Hoang, Averyanov L.

FLORA OF VIETNAM Liliaceae s.l (Convallariaceae) Disporum sp. Vietnam, Nghe An Prov., Tuong Duong Distr., Tam Quang Municipality, Tung Huong village, along Khe Mat stream around point 19°03'07"N 104°36'57"E at elevation about 400-500 m a.s.l. Lowland closed secondary old evergreen forest on steep slopes along rocky stream valley composed with stratified solid shale and sandstone. Terrestrial herb up to 1 m tall along rocky shady stream valley. Fruits black. Locally very common. HLF 6624 17 March 2007. Coll. Averyanov L., P.K.Loc, N.V.Trai, N.T.Vinh, N.D.Phuong, Averyanova A. Grant from Henry Luce Foundation.

FLORA OF VIETNAM Convallariaceae Ophiopogon caulescens (Blume) Backer Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Can Ty commune, Dau Cau 1 village, around point 23º05ʹ26.3ʺN 105º01ʹ03.0ʺE, 1100-1150 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved humid forest on steep rocky slopes near mountain tops. Terrestrial herb among rocks in shady place. Flowers white with violet tint. Not rare. 14 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 136.

All photos © L. Averyanov & K.S. Nguyen

FLORA OF VIETNAM Convallariaceae Ophiopogon caulescens (Blume) Backer Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Can Ty commune, Dau Cau 1 village, around point 23º05ʹ26.3ʺN 105º01ʹ03.0ʺE, 1100-1150 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved humid forest on steep rocky slopes near mountain tops. Terrestrial herb among rocks in shady place. Flowers white with violet tint. Not rare. 14 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 136.

All photos © L. Averyanov & K.S. Nguyen

FLORA OF VIETNAM Fam. Convallariaceae Polygonatum sp. N. Vietnam, prov. Ha Giang, distr. Dong Van, municipality Ho Quang Phin, vicinities of Ta Xa village, 14-16 km to SSW of Dong Van town (N 23°16' E 105°22'). Primary very wet mossy cloud mixed forest (with domination of Tsuga chinensis and Pinus kwangtungensis) along tops of karst remnant limestone ridge at 1550-1600 m elev. Lithophyte herb up to 0.5 m hg on mossy open rocks. Flowers greenish-white. Common. No CBL 1790 28 April 1999 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98) Collectors: P.K.Loc, P.H.Hoang, Averyanov L.

FLORA OF VIETNAM Fam. Convallariaceae Polyginatum sp. ? N. Viet Nam. Ha Giang Province, Quang Ba District, Bat Dai Son village. Primary forest along limestone ridge with Biota sp, Fraxinus, Quercus, Pseudotsuga, Taxus and Acer at 1100-1200 m. Frequent herb with fleshy rhizome among rocks. Flowers all light green to yellow-green. No DKH 5178 5 April 2000 Collectors, D.K.Harder, N.T.Hiep, L.V. Averyanov, N.Q.Hieu, K.Daria.

FLORA OF VIETNAM Fam. Convallariaceae Polygonatum sp. N. Vietnam, prov. Cao Bang, distr. Nguyen Binh, municipality Ca Thanh (N 22°44' E 105°50'). Primary semideciduous broad-leaved forest on steep slopes and bluffs of remnant karst limestone ridge at 1250-1300 elev. Lithophyte and epiphyte herb. Flowers light green. Not rare. No CBL 1283 13 April 1999 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98) Collectors: P.K.Loc, P.H.Hoang, Averyanov L.

FLORA OF VIETNAM Fam. Convallariaceae Polygonatum sp. N. Vietnam, prov. Cao Bang, distr. Bao Lac, municipality Dinh Phung, about 5 km to NW from Yen Lac village (N 22°44' E 105°50'), about 50 km to NWW from Cao Bang town. Old secondary closed broadleaved wet cloud forest on steep slopes and cliffs along top of Nam Linh limestone ridge at 1500-1580 m alt. Epiphyte herb on mossy tree stems. Rare. No CBL 473 19 Nov. 1998 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98) Collectors: Averyanov L., P.K.Loc, N.X.Tam.

FLORA OF VIETNAM Fam. Convallariaceae Polygonatum sp. N. Vietnam, prov. Cao Bang, distr. Bao Lac, municipality Dinh Phung, about 5 km to NW from Yen Lac village (N 22°44' E 105°50'), about 50 km to NWW from Cao Bang town. Old secondary closed broadleaved wet cloud forest on steep slopes and cliffs along top of Nam Linh limestone ridge at 1500-1580 m alt. Epiphyte herb on mossy tree stems. Rare. No CBL 473 19 Nov. 1998 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98) Collectors: Averyanov L., P.K.Loc, N.X.Tam.

FLORA OF VIETNAM Fam. Convallariaceae Disporum sp. N. Vietnam, prov. Cao Bang, distr. Bao Lac, municipality Ca Thanh, about 3 km to SW from Yen Lac village (N 22°44' E 105°50'), about 42 km to NWW from Cao Bang town. Primary open coniferous mossy forest (with Pseudotsuga brevifolia in 1 stratum) along tops of limestone karst remnant ridge at 1400-1450 m alt. Terrestrial and epilite herb up to 30 cm hg. Ripe fruitsgreenish-black. Not rare. No CBL 368 18 Nov. 1998 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98) Collectors: Averyanov L., P.K.Loc, N.X.Tam.