Herbarium LE - Specimens

FLORA OF LAOS Convallariaceae Tupistra orlovii Aver., N. Tanaka & K. S. Nguyen, sp.nov. Bolikhamsai prov., Thaphabat distr., Nam Bon village, Phou Khao Khouay national park, Tad Xai Waterfall, around point 18°27'25.9''N 103°08'17.5''E. Degraded primary and secondary evergreen dry forest along river on eroded sandstone at elev. About 340 m a.s.l. Lithophytic and occasionally terrestrial large herb on shady mossy boulders and river cliffs. Leaves uniform green, fruits glossy green. Rare, but locally abundant. LA-VN 2191 11 April 2017 Photos Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.Maisak. d-EXSICCATES OF VIETNAMESE FLORA 0283/Orlov s.n. & LA-VN 2191 © L.Averyanov

FLORA OF VIETNAM Fam. Convallariaceae Tupistra theana Aver. et N.Tanaka, sp.nov. Epitype Quang Binh Prov., Minh Hoa Distr., Hoa Tien municipality, La Van village, around point 17°51’45”N 105°49’45”E. Highly degraded primary and secondary evergreen broad-leaved forest on very steep rocky slopes of remnant limestone hills composed with highly eroded marble-like crystalline limestone at elev. 200-450 m a.s.l. Lithophytic herb on shelves and in crevices of tall shady vertical cliff near to top of mountain. Not common. CPC 2581 30 April 2011. Coll.: L.Averyanov, P.K.Loc, N.Q.Hieu, P.V.The, N.T.Vinh. d-EXSICCATES OF VIETNAMESE FLORA 0182/HAL 2581 (CPC, LE) © Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

FLORA OF VIETNAM Tupistra gracilis Aver. & N.Tanaka Epitype Thanh Hoa Prov., Thuong Xuan Distr., Bat Mot Municipality, Duc village, Xuan Lien Natural Reserve. Primary broad-leaved evergreen forest on rocky, highly eroded, crystalline limestone at elevation 800-1000 m a.s.l. around point 20°01’11.6’’N 104°57’47.5’’E. Terrestrial and lithophytic herb with leaves to 1.5 m long and thick creeping ascending rhizome in very steep shady rocky slope. Rare. 4 November 2013 CPC 6721 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, N.D.Thang, L.V.Tien Fl. in 22 Nov. 2016. d-EXSICCATES OF VIETNAMESE FLORA 0269/CPC 6721 © L.Averyanov

FLORA OF VIETNAM Convallariaceae Tupistrapatula Aver., N. Tanaka et K.S. Nhuyen Isotype Ha Giang Prov., Bac Me Distr., Thuong Tan municipality. Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 1200-1285 m a.s.l. around point 22°38’19.0’’N 105°17’06.5’’E. Terrestrial herb on mountain shady slope in very wet place. Old flowers dull yellowish, then entirely black. Not common. 16 November 2014 CPC 7492 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz (holotype: Herbarium of the Center for Plant Conservation, Hanoi)

FLORA OF VIETNAM Fam. Convallariaceae Tupistra theana Aver. et N.Tanaka, sp.nov. Epitype Quang Binh Prov., Minh Hoa Distr., Hoa Tien municipality, La Van village, around point 17°51’45”N 105°49’45”E. Highly degraded primary and secondary evergreen broad-leaved forest on very steep rocky slopes of remnant limestone hills composed with highly eroded marble-like crystalline limestone at elev. 200-450 m a.s.l. Lithophytic herb on shelves and in crevices of tall shady vertical cliff near to top of mountain. Not common. CPC 2581 30 April 2011. Coll.: L.Averyanov, P.K.Loc, N.Q.Hieu, P.V.The, N.T.Vinh. d-EXSICCATES OF VIETNAMESE FLORA 0182/HAL 2581 (CPC, LE) © Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

FLORA OF VIETNAM Convallariaceae Tupistra khangii sp.nov. Son La Prov., Van Ho Distr., Tan Xuan Municipality, Cot Moc village, territory of Xuan Nha natural reserve, eastern slopes of Pha Luong Mountain. Remnants of primary and secondary broad-leaved evergreen humid forest on very steep mountain slopes composed by shale and sandstone at elevation about 1000 m a.s.l. around point 20°40’33.3’’N 104°39’00.3’’E. Large lithophytic clustering herb on large mossy stream boulders along narrow shady rocky stream canyon. Flowers white, anthers light yellowish. Occasional. 15 November 2013 CPC 7158 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, N.D.Thang, L.D.Qui Photos

FLORA OF LAOS Convallariaceae Rohdea dracaenoides Aver. et N.Tanaka, sp.nov. Type. Vientiane Prov., Kasi Distr., Namken village, Phachao Mt., around point 19°18’45.5”N 102°22’31.4”E. Primary broad-leaved evergreen forest on very steep rocky slopes of remnant mountain composed with highly eroded solid crystalline limestone at elevations 1500-1750 m. Lithophyte on steep rocky slopes and shady cliffs. Flowers light green to light yellow-orange. Very common from elev. 1600 to mountain top. LA-VN 785 24 March 2013 Coll.: L.Averyanov, N.S.Khang, S.Lorphengsy

FLORA OF LAOS Convallariaceae Rohdea dracaenoides Aver. et N.Tanaka, sp.nov. Type. Vientiane Prov., Kasi Distr., Namken village, Phachao Mt., around point 19°18’45.5”N 102°22’31.4”E. Primary broad-leaved evergreen forest on very steep rocky slopes of remnant mountain composed with highly eroded solid crystalline limestone at elevations 1500-1750 m. Lithophyte on steep rocky slopes and shady cliffs. Flowers light green to light yellow-orange. Very common from elev. 1600 to mountain top. LA-VN 785 24 March 2013 Coll.: L.Averyanov, N.S.Khang, S.Lorphengsy

FLORA OF VIETNAM Liliaceae s.l. (Convallariaceae) Peliosanthes retroflexa Aver. et N.Tanaka Type Quang Binh Prov., Minh Hoa Distr., Dan Hoa Municipality, Giang Man Ridge (Vietnam-Laos border) near Cha Lo Vietnam-Lao border gate around point 17°41’50”N 105°45’54”E. Primary evergreen broad-leaved and coniferous (with Dacrycarpus and Fokienia) wet forest along ridge edge composed with shale and sandstone at elevation about 900-1100 m a.s.l. Terrestrial herb on shady slope. Fruits blue. Common. HAL 12374 8 February 2009 Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM Peliosanthes lucida Aver., N.Tanaka et K.S.Nguyen Epitype Hoa Binh prov., Lac Thuy district, Phu Thanh commune, Tan Lam village, around point 20°34'55.48"N 105°40'56.20"E, at elev. about 120 m a.s.l., scattered under secondary closed evergreen broad-leaved lowland forests on limestone. Perennial herb with rhizome, inflorescence about 15 cm, flower pale green, Common 7 May 2014 Nguyen Sinh Khang NSK 686 d-EXSICCATES OF VIETNAMESE FLORA 0219/NSK 686 (LE) © L.Averyanov & N.S.Khang

FLORA OF LAOS Arecaceae Trachycarpus ravenii Aver. et K.N.Sinh, sp.nov. Type Vientiane Prov., Kasi Distr., Thong Mout village, around point 19°25’00.9”N 102°08’38.0”E. Cliffy outcrops of rocky limestone on forestless mountain tops among secondary grasslands at elevation 1700 m. Palm to 6 m tall and 15 cm DBH. Leaves palmate, almost circular, 0.8-1 m in diam., petiole 0.4-0.6 cm long. Male specimen. Flowers and anthers yellowish. Rare. LA-VN 725 22 March 2013 photos Coll.: L.Averyanov, N.S.Khang, S.Lorphengsy d-EXSICCATES OF VIETNAMESE FLORA 0200/LA-VN 725 (HNL, LE) © L.Averyanov, N.T.Hiep, N.S.Khang

FLORA OF VIETNAM

FLORA OF VIETNAM Peliosanthes kenhillii Aver., N.Tanaka et K.S.Nguyen Epitype Ninh Binh prov., Nho Quan district, Cuc Phuong national park, around point 20°15'03.6"N 105°41'58.7"E (N20 15 03.6 E105 41 58.7), at elev. about 165 m a.s.l., scattered in closed evergreen broad-leaved lowland secondary forests at the base of limestone hill. Perennial herb with rhizome, inflorescence about 15-20 cm, flower pale white-green. Common 9 December 2014, Nguyen Sinh Khang NSK 760. d-EXSICCATES OF VIETNAMESE FLORA 0222/NSK 760 (LE) © L.Averyanov & K.S.Nguyen

FLORA OF VIETNAM Liliaceae s.l. (Convallariaceae) Peliosanthes sp.nov. Lai Chau Prov., Phong Tho Distr., Sin Suoi Ho Municipality, Sa Ma Pho village, around point 22°33’21’’N 103°34’29’’E. Secondary evergreen broad-leaved wet closed forest with bamboo on very steep mountain slopes and along ridges composed predominantly with weathered granite at elev. about 1900-2050 m a.s.l. Terrestrial herb on shady rocky slope. Flowers light dull yellowish. Fruits blue, juicy. Locally very common. HAL 10767 14 Dec. 2006 Photo. Coll.: Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc, Pham Van The, N.T.Vinh. d-EXSICCATES OF VIETNAMESE FLORA 0089/HAL10767 (HN, LE) © Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

FLORA OF LAOS Convallariaceae Peliosanthes densiflora Aver. et N.Tanaka sp.nov. Laos, Vientiane prov., Kasi. Берег реки Nam Pong Gnai, новая дорога на Луанг Пробанг, 13 км от Каси. 827 м над ур. м., 19°21.978N, 102°09.282E. Е.Константинов K140. сбор живым корневищем, гербарий/фото 22.10.2013.

FLORA OF LAOS

FLORA OF VIETNAM

FLORA OF LAOS Convallariaceae Peliosanthes choriandra Aver. et al. Type Luang Prabang prov., Pon Xay distr., Houay Man village, Phou Pak Sang Mountain, around point 19°59'03.8''N 102°25'09.0''E. Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 1000-1150 m a.s.l. Terrestrial herb on steep shady rocky mountain slope. Flowers green. Occasional. LA-VN 2059 4 April 2017 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.Maisak, Vichith Lamxay, Koudkeo Phommachanh, Phizar Sayalath, Keooudone Souvannakhoummane. d-EXSICCATES OF VIETNAMESE FLORA 0282/LA-VN 2059 © L.Averyanov

FLORA OF CAMBODIA

FLORA OF VIETNAM Fam. Liliaceae s.l. Convallariaceae Ophiopogon fruticulosus Aver., N.Tanaka et S.K.Nguyen Type Vietnam, Ha Giang Prov., Bac Me Distr., Phieng Luong Municipality, around Phieng Luong village about 4 km to SW of Phieng Luong Municipality headquarter 22º39’29’’N, 105º19’35’’E. Slightly logged primary closed evergreen broad-leaved forest on slopes of remnant mountains composed with solid highly eroded crystalline and partially shale limestone at elev. 1000-1200 m a.s.l. Undershrub 0.5-1.5 m tall on rocky top of ridge. Fruits deep blue. Locally very common. No HAL 6489 5 March 2005. Collectors: L.Averyanov, P.K.Loc, N.T.Vinh, A.Averyanova. Fl. In cult in November – December 2015. Flowers white with light violet tint. Photos. Averyanov L. Collected from cultivated plant grown from seeds. L. Averyanov 15 July 2014.

Asclepiadaceae Hoya nutans Aver. et V.T. Pham Type Hoa Binh Prov., Lac Son Distr., Tu Do Municipality, Mon village, around point 20°25’29”N 105°19’36”E. Primary broad-leaved forest on steep rocky slopes of remnant mountain composed with solid crystalline highly eroded limestone at elevation about 500-700 m a.s.l. Semi-woody vine. Occasional. CPC 1592e / 11531 25 March 2011 Coll.: N.Q.Hieu, L.Averyanov, N.T.Hiep, P.K.Loc, P.V.The, N.T.Vinh, T.B.Ngan, N.Tap, D.D.Dao, V.T.Ha, T. Maisak, L. Osinovetz. Fl. et coll. under cultivation at 16 July 2016. Flowers with light sweet fragrance, white, corona pink. L.Averyanov. Photos. d-EXSICCATES OF VIETNAMESE FLORA 0258/CPC 1592e © L.Averyanov

FLORA OF VIETNAM Ophiopogon aff. O. dracaenoides Hook.f. S. Vietnam, Prov. Lam Dong, 30 km to NE from Dalat city, distr. Lac Duong, municipalite Da Chay. Primary closed evergreen broadleaved forest on W macroslope of Bi Dup mt system at 1700-1900 m alt. (N 12° 08', E 108° 39'). Terrestrial herb on steep shadow slopes of deep wet stream canyon. Fruits deep blue, spheroid. Common. No VH 3174 24.03.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96) Collectors: L. Averyanov, N.Q. Binh, P.K. Loc

FLORA OF VIETNAM Convallariaceae Ophiopogon petraeus Aver. et N.Tanaka Type Lang Son Prov., Huu Lung Distr., Huu Lien Commune, Huu Lien Nature Reserve, around point 21°40’28”N, 106°22’34”E. Primary closed evergreen seasonal tropical mixed forests on rocky limestone at elevation 400-600 m. Lithophytic rosulate herb. Not rare. HAL 11220b 24 September 2007 Coll.: P.K.Loc, N.T.Vinh, H.V.Luat Flowered under cultivation at September-October 2013. Flowers white, anthers light yellow-green, pedicel white with violet tint. Leaves fleshy, at the base subsucculent, juicy, transversely-oval in section. Photos. L. Averyanov, HAL 11220b/1. d-EXSICCATES OF VIETNAMESE FLORA 0207/HAL 11220b (LE) © L.Averyanov

FLORA OF VIETNAM

FLORA OF VIETNAM Asclepiadaceae Hoya crassipetiolata Aver. Type Dien Bien Prov., Muong Cha Distr., Hua Ngai Municipality, Ha La Chu Village, around point 21°53’46”N 103°10’17”E. Highly degraded primary evergreen broadleaved humid forest on very steep slopes of remnant mountains composed with solid limestone at elevation 1100-1400 m a.s.l. Epiphyte on tall mossy tree. Common. CPC 2049a 07 April 2011 Coll.: L.Averyanov, P.K.Loc, N.Q.Hieu, N.T.Vinh. Flowered in cult. in 6 May 2015. Flowers white with pink tint. Photos. d-EXSICCATES OF VIETNAMESE FLORA 0257/CPC 2049a © L.Averyanov

FLORA OF VIETNAM Fam. Melanthiaceae Chionographis actinomorpha Aver. et N. Tanaka Type Vietnam, Quang Binh Prov., Minh Hoa Distr., Dan Hoa municipality, Giang Man Mountain, Vietnam-Laotian border, about 6 km to N of Cha Lo borders station, around point 17º41’09’’N 105º45’54’’E. Coniferous primary forest with Dacrydium and Fokienia along ridge edge composed with brown shale at elevation 1000-1100 m a.s.l. Adpressed rosulate lithophyte on shady rocks. Flowers white. Occasional. HAL 11722 19 April 2008 photo Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, N.S.Khang

FLORA OF LAOS Acantaceae Strobilanthes arborescens sp.nov. Luang Prabang prov., Pon Xay distr., Houay Man village, Phou Tham Keo Mountain, around point 19°57'44.2''N 102°25'45.8''E. Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 500-650 m a.s.l. Deciduous treelet or shrub 2-4 m tall on open karstic rocks on mountain top. Flowers blue. Very common. Main co-dominant of deciduous scrub on open tops of karstic limestone mountains. LA-VN 2082 4 April 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 Acanthaceae Strobilanthes arborescens sp.nov. Luang Prabang prov., Pon Xay distr., Nam Bo village, around point 19°57'23.5''N 102°26'16.4''E. Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 650-750 m a.s.l. Deciduous treelet 2-4(5) m tall and to 15 cm DBH on open rocky mountain top. Flowers blue. Very common. Main co-dominant of primary scrub on open rocky mountain tops. LA-VN 2178 6 April 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 Acanthaceae Strobilanthes arborescens sp.nov. Luang Prabang prov., Pon Xay distr., Nam Bo village, around point 19°57'23.5''N 102°26'16.4''E. Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 650-750 m a.s.l. Deciduous treelet 2-4(5) m tall and to 15 cm DBH on open rocky mountain top. Flowers blue. Very common. Main co-dominant of primary scrub on open rocky mountain tops. LA-VN 2178 6 April 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 Acantaceae Strobilanthes arborescens sp.nov. Luang Prabang prov., Pon Xay distr., between Houay Man and Nam Bo villages, Phou Hua Ben Toc Mountain, around point 19°57'33.1''N 102°25'25.8''E. Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 500-650 m a.s.l. Deciduous treelet or shrub 2-4 m tall on open karstic rocks on mountain top. Flowers blue. Very common. Main co-dominant of deciduous scrub on open tops of karstic limestone mountains. LA-VN 2130 5 April 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 Acantaceae Strobilanthes arborescens sp.nov. Luang Prabang prov., Pon Xay distr., between Houay Man and Nam Bo villages, Phou Hua Ben Toc Mountain, around point 19°57'33.1''N 102°25'25.8''E. Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 500-650 m a.s.l. Deciduous treelet or shrub 2-4 m tall on open karstic rocks on mountain top. Flowers blue. Very common. Main co-dominant of deciduous scrub on open tops of karstic limestone mountains. LA-VN 2130 5 April 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 VIETNAM (NEW) Gentianaceae Cotylanthera zygomorpha Aver. et Khang., sp.nov. Type Nghe An Prov., Ky Son Distr., Na Ngoi Municipality, eastern slopes of Phu Xai Lai Leng Mountain. Primary very humid broad-leaved forest on steep mountain slopes composed of sandstone and gray shale at elevation 2000-2300 m a.s.l. around point 19°11’58.2’’N 104°11’38.6’’E. Terrestrial achlorophyllous white saprophyte in shady place along edge of ridge. Flowers white, anthers yellow. Very rare. 24 October 2013 CPC 6183 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, L.M.Tuan, N.A.Trang, L.H.Dan

FLORA OF VIETNAM Fam. Melanthiaceae Chionographis actinomorpha Aver. et N. Tanaka Type Vietnam, Quang Binh Prov., Minh Hoa Distr., Dan Hoa municipality, Giang Man Mountain, Vietnam-Laotian border, about 6 km to N of Cha Lo borders station, around point 17º41’09’’N 105º45’54’’E. Coniferous primary forest with Dacrydium and Fokienia along ridge edge composed with brown shale at elevation 1000-1100 m a.s.l. Adpressed rosulate lithophyte on shady rocks. Flowers white. Occasional. HAL 11722 19 April 2008 photo Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, N.S.Khang

FLORA OF VIETNAM

FLORA OF LAOS

FLORA OF VIETNAM Convallariaceae Ophiopogon fruticulosa Aver., N.Tanaka et S.K.Nguyen, sp.nov. Type Tuyen Quang Prov., Na Hang Distr., Sinh Long Municipality, Khuoi Phin village, around point 22°38'21"N, 105°20'28"E. Remnants of primary forest along stream, on wet very steep shady humid travertine river valley. Erect shrub to 1.2 m tall in shady wet place. Flowers white with light violet tint. Locally abundant. 30 September 2013 CPC 5345 L.Averyanov, N.T.Hiep, L.M.Tuan, N.S.Khang, D.V.Cuong, N.V.Truong.T.Maisak, L.Osinovets

FLORA OF LAOS Acanthaceae Strobilanthes arborescens sp.nov. Luang Prabang prov., Pon Xay distr., along the way to Bane Phou Souong village, Pha Hiua Bin Toc Mountain, around point 19°57'37.0''N 102°25'03.0''E. Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 600-850 m a.s.l. Deciduous treelet 2-5 m tall and to 15 cm DBH on open rocky mountain top. Flowers blue. Very common. Main co-dominant of primary scrub on open rocky mountain tops. LA-VN 2157 5 April 2017 Photos 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 Acantaceae Strobilanthes arborescens sp.nov. Luang Prabang prov., Pon Xay distr., Houay Man village, Phou Pak Sang Mountain, around point 19°59'03.8''N 102°25'09.0''E. Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 1000-1150 m a.s.l. Deciduous treelet or shrub 2-4 m tall on open karstic rocks on mountain top. Flowers blue. Very common. Main co-dominant of deciduous scrub on open tops of karstic limestone mountains. LA-VN 2050 4 April 2017 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.Maisak, Vichith Lamxay, Koudkeo Phommachanh, Phizar Sayalath, Keooudone Souvannakhoummane.