Herbarium LE - Specimens

Zingiberaceae

Alpinia sp.

Dak Lak Province, M’Drak District, Chu Mu Mountain, 800-900 m a.s.l., erect terrestrial herb to 3 m tall, tepals light yellowish, lip white with dark red center and red nerves, rare. March 2024, Nguyen Van Canh, AL3114.

Convallariaceae

Aspidistra thuongiana Vislobokov, Nuraliev, V.C.Nguyen & V.T.Pham

Binh Dinh Province, Van Canh District, evergreen broad-leaved forest at about 1200 m a.s.l., along stream, flowers yellow, very common. March 2024, Nguyen Van Canh, AL3112.

Convallariaceae

Aspidistra thuongiana Vislobokov, Nuraliev, V.C.Nguyen & V.T.Pham

Binh Dinh Province, Van Canh District, evergreen broad-leaved forest at about 1200 m a.s.l., along stream, flowers yellow, very common.

March 2024, Nguyen Van Canh, AL3112.

Cycadaceae

Cycas hoabinhensis L.K.Phan & T.H.Nguyen

Thanh Hoa Province, Quan Hoa District, Nam Dong Community, Ban Lo Village, Ke Stream, the territory of Nam Dong National Reserve around point 22º25’46’’N 105º36’58’E. Old secondary broad-leaved evergreen humid forest on wet very steep alluvial slopes based on solid, marble-like highly eroded limestone at elevation of 600–800 m a.s.l. Terrestrial and lithophytic palm-like tree with stem to 1 m tall and to 25 cm in diameter. Leaves to 2 m long. On rocky places and cliffs near and on rocky hill top. Locally common.

04 May 2024, Nguyen Huu Cuong, Nguyen Van Ly, L. Averyanov, T. Maisak, AL2988.

Cycadaceae

Cycas hoabinhensis L.K.Phan & T.H.Nguyen

Thanh Hoa Province, Quan Hoa District, Nam Dong Community, Ban Lo Village, Ke Stream, the territory of Nam Dong National Reserve around point 22º25’46’’N 105º36’58’E. Old secondary broad-leaved evergreen humid forest on wet very steep alluvial slopes based on solid, marble-like highly eroded limestone at elevation of 600–800 m a.s.l. Terrestrial and lithophytic palm-like tree with stem to 1 m tall and to 25 cm in diameter. Leaves to 2 m long. On rocky places and cliffs near and on rocky hill top. Locally common.

04 May 2024, Nguyen Huu Cuong, Nguyen Van Ly, L. Averyanov, T. Maisak, AL2988.

Sterculiaceae

Pterospermum heterophyllum Hance

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Dry secondary evergreen broad-leaved forest on steep rocky slope composed by white crystalline marble-like highly eroded limestone around point 22º27’42’’N 105º34’41’E at elevation of 700–800 m a.s.l. Treelet to 10 m tall on very steep rocky slope. Very common.

27 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2932.

Orchidaceae

Phaius flavus (Blume) Lindl.

Thanh Hoa Province, Quan Hoa District, Nam Dong Community, Ban Lo Village, Ke Stream, the territory of Nam Dong National Reserve around point 22º25’46’’N 105º36’58’E. Primary and old secondary broad-leaved evergreen humid forest on very steep rocky slopes on solid, marble-like highly eroded limestone at elevation 900–1200 m a.s.l. on steep rocky slope.

Terrestrial herb to 1 m tall on shady rocky slope near mountain top. Leaves yellow spotted. Not common.

04 May 2024, Nguyen Huu Cuong, Nguyen Van Ly, L. Averyanov, T. Maisak, AL3047.

Orchidaceae

Bulbophyllum refractum (Zoll.) Rchb.f.

N. Vietnam, Dien Bien Province, Tuan Giao District, limestone range along the border between Tuan Giao District (Dien Bien Province) and Quynh Nhai District (Son La Province). Clustering epiphyte on tall tree. Rare. Sepals orange-red.

02 March 2023, Nguyen Sinh Khang, AL 2191.

Orchidaceae

Liparis sootenzanensis Fukuy.

Thanh Hoa Province, Quan Hoa District, Nam Dong Community, Ban Lo Village, Ke Stream, the territory of Nam Dong National Reserve around point 22º25’46’’N 105º36’58’E. Secondary broad-leaved evergreen humid forest with tall bamboo and bananas on very steep alluvial slopes on sandstone mixed with solid, marble-like highly eroded limestone at elevation of 600–800 m a.s.l. Terrestrial herb on shady steep rocky slope along stream. Locally common.

03 May 2024, Nguyen Huu Cuong, Nguyen Van Ly, L. Averyanov, T. Maisak, AL2970.

Orchidaceae

Grosourdya appendiculata

Kon Tum Province, obtained from local collectors,

10 May 2024, Nguyen Van Canh, AL3127.

Orchidaceae

Pholidota imbricata Lindl.

Dak Lak Province, Lak District, around Lieng Bok Sak Waterfall at elevation about 400 m a.s.l. Dry evergreen broad-leaved forest along rocky stream on granite. Epiphyte and lithophyte along rocky stream. Occasional.

11 May 2024, L. Averyanov, Nguyen Van Canh, T. Maisak, AL3146.

Orchidaceae

Dendrobium crumenatum Sw.

Dak Lak Province, Lak District, around Lieng Bok Sak Waterfall at elevation about 400 m a.s.l. Dry evergreen broad-leaved forest along rocky stream on granite. Epiphyte along rocky stream. Occasional.

11 May 2024, L. Averyanov, Nguyen Van Canh, T. Maisak, AL3148.

Orchidaceae

Coelogyne viscosa Rchb.f.

Dak Lak Province, Lak District, around Lieng Bok Sak Waterfall at elevation about 400 m a.s.l. Dry evergreen broad-leaved forest along rocky stream on granite. Epiphyte and lithophyte along rocky stream. Occasional.

11 May 2024, L. Averyanov, Nguyen Van Canh, T. Maisak, AL3147.

Orchidaceae

Acampe rigida (Sm.) P.F.Hunt

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Old secondary evergreen broad-leaved forest and scrub on very steep rocky slope composed by white crystalline marble-like highly eroded limestone above tall cliff around point 22º27’36’’N 105º39’18’E at elevation of about 300 m a.s.l. Lithophytic undershrub to 1.5 m tall on rather open mossy rocky slope. Not rare.

25 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2906.

Orchidaceae

Cleisostoma williamsonii (Rchb.f.) Garay

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Old secondary evergreen broad-leaved forest and scrub on very steep rocky slope composed by white crystalline marble-like highly eroded limestone above tall cliff around point 22º27’36’’N 105º39’18’E at elevation of about 300 m a.s.l. Epiphyte on rather open rocky slope. Flowers light pink, lip purple. Not common.

25 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2883.

Orchidaceae

Thrixspermum sp.

Ninh Thuan Province, Nui Chua Mountain, Nui Chua National Park, obtained from local collectors in 2024.

10 May 2024, Nguyen Van Canh garden, AL3134.

Orchidaceae

Vanda sp.?

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Primary and old secondary evergreen broad-leaved forest on very steep rocky slopes composed by white crystalline marble-like highly eroded limestone around point 22º27’20’’N 105º36’06’E at elevation of about 750 m a.s.l. Epiphyte on tall trees along ridge edge above tall cliff. Occasional.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2855.

Orchidaceae

Corymborkis veratrifolia (Reinw.) Blume

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Primary and old secondary evergreen broad-leaved forest on very steep rocky slopes composed by white crystalline marble-like highly eroded limestone around point 22º27’20’’N 105º36’06’E at elevation of about 750 m a.s.l. Terrestrial herb to 1.5 m tall in shady, humid rocky place. Not common.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2856.

Orchidaceae

Corymborkis veratrifolia (Reinw.) Blume

Thanh Hoa Province, Quan Hoa District, Nam Dong Community, Ban Lo Village, Ke Stream, the territory of Nam Dong National Reserve around point 22º25’46’’N 105º36’58’E. Old secondary broad-leaved evergreen humid forest on wet very steep alluvial slopes based on solid, marble-like highly eroded limestone at elevation of 600–800 m a.s.l. Erect terrestrial and lithophytic herb to 2 m tall on steep rocky slope. Flowers white. Not rare.

04 May 2024, Nguyen Huu Cuong, Nguyen Van Ly, L. Averyanov, T. Maisak, AL2995.

Orchidaceae

Dendrobium namdongense Aver. & C.H.Nguyen, sp. nov.

Isotype

Orchidaceae

Calanthe argenteo-striata C.Z.Tang & S.J.Cheng

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Old secondary evergreen broad-leaved forest and scrub on very steep rocky slope composed by white crystalline marble-like highly eroded limestone above tall cliff around point 22º27’36’’N 105º39’18’E at elevation of about 300 m a.s.l. Terrestrial and lithophytic herb on shady rocky slope. Flowers white, later pale yellow. Not rare.

25 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2885.

Orchidaceae

Epipogium roseum Lindl.

Thanh Hoa Province, Quan Hoa District, Nam Dong Community, Ban Lo Village, Ke Stream, the territory of Nam Dong National Reserve around point 22º25’46’’N 105º36’58’E. Old secondary broad-leaved evergreen humid forest on wet very steep alluvial slopes based on solid, marble-like highly eroded limestone at elevation of 600–800 m a.s.l.

Terrestrial achlorophyllous, almost white tuberiferous herb to 0.3 m tall in wet shady place between limestone hills on rich alluvial soil. Occasional.

04 May 2024, Nguyen Huu Cuong, Nguyen Van Ly, L. Averyanov, T. Maisak, AL2991.

Orchidaceae

Calanthe sylvatica (Thouars) Lindl.

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Old secondary evergreen broad-leaved forest and scrub on very steep rocky slope composed by white crystalline marble-like highly eroded limestone above tall cliff around point 22º27’36’’N 105º39’18’E at elevation of about 300 m a.s.l. Terrestrial and lithophytic herb on shady rocky slope. Not common.

25 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2886.

Orchidaceae

Malaxis acuminata D.Don

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Primary and old secondary evergreen broad-leaved forest on very steep rocky slopes composed by white crystalline marble-like highly eroded limestone around point 22º27’20’’N 105º36’06’E at elevation of about 750 m a.s.l. Terrestrial and lithophytic herb in shady place on very steep rocky slope. Leaves dull purple. Flowers light green. Not common.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2852.

Orchidaceae

Cleisostoma williamsonii (Rchb.f.) Garay

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Old secondary evergreen broad-leaved forest and scrub on very steep rocky slope composed by white crystalline marble-like highly eroded limestone above tall cliff around point 22º27’36’’N 105º39’18’E at elevation of about 300 m a.s.l. Epiphyte on rather open rocky slope. Flowers light pink, lip purple. Not common.25 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2883.

Orchidaceae

Pelatantheria insectifera (Rchb.f.) Ridl.

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Old secondary evergreen broad-leaved forest and scrub on very steep rocky slope composed by white crystalline marble-like highly eroded limestone above tall cliff around point 22º27’36’’N 105º39’18’E at elevation of about 300 m a.s.l. Epiphyte on tall tree and lithophyte on rather open mossy rocky slope. Not common.

25 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2884.

Orchidaceae

Oberonia cavaleriei Finet

Thanh Hoa Province, Quan Hoa District, Nam Dong Community, Ban Lo Village, Ke Stream, the territory of Nam Dong National Reserve around point 22º25’46’’N 105º36’58’E. Old secondary broad-leaved evergreen humid forest on wet very steep alluvial slopes based on solid, marble-like highly eroded limestone at elevation of 600–800 m a.s.l.

Lithophytic herb on shady vertical cliff near hill top. Locally common.04 May 2024, Nguyen Huu Cuong, Nguyen Van Ly, L. Averyanov, T. Maisak, AL2990.

Orchidaceae

Bulbophyllum sp.

Thanh Hoa Province, Quan Hoa District, Nam Dong Community, Ban Lo Village, Ke Stream, the territory of Nam Dong National Reserve around point 22º25’46’’N 105º36’58’E. Old secondary broad-leaved evergreen humid forest on wet very steep alluvial slopes based on solid, marble-like highly eroded limestone at elevation of 600–800 m a.s.l. Creeping epiphyte on tall tree near mountain top. Occasional.

04 May 2024, Nguyen Huu Cuong, Nguyen Van Ly, L. Averyanov, T. Maisak, AL2982a.

Orchidaceae

Thelasis pygmaea (Griff.) Lindl.

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Dry secondary evergreen broad-leaved forest on steep rocky slope composed by white crystalline marble-like highly eroded limestone around point 22º27’42’’N 105º34’41’E at elevation of 700–800 m a.s.l. Clustering epiphyte on tall trees. Not rare.

27 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2930.

Orchidaceae

Tropidia angulosa (Lindl.) Blume

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Old secondary evergreen broad-leaved forest and scrub on very steep rocky slope composed by white crystalline marble-like highly eroded limestone above tall cliff around point 22º27’36’’N 105º39’18’E at elevation of about 300 m a.s.l. Terrestrial herb in shady valley between limestone hills. Not common.

25 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2911.

Orchidaceae

Vandopsis gigantea Pfitzer

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Dry secondary evergreen broad-leaved forest on steep rocky slope composed by white crystalline marble-like highly eroded limestone around point 22º27’42’’N 105º34’41’E at elevation of 700–800 m a.s.l. Lithophyte and occasionally epiphyte on tall trees along rocky ridge edge. Not common.

27 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2940.

Orchidaceae

Hygrochilus parishii Pfitzer

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Dry secondary evergreen broad-leaved forest on steep rocky slope composed by white crystalline marble-like highly eroded limestone around point 22º27’42’’N 105º34’41’E at elevation of 700–800 m a.s.l. Epiphyte on tall tree along rocky ridge edge. Not common.

27 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2939.

Orchidaceae

Renanthera citrina Aver.

Bac Kan Province, Ba Be District, Cao Thuong Community, Ba Be National Park. Dry secondary evergreen broad-leaved forest on steep rocky slope composed by white crystalline marble-like highly eroded limestone around point 22º27’42’’N 105º34’41’E at elevation of 700–800 m a.s.l. Epiphyte on tall tree along rocky ridge edge. Very rare.

27 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2938.