Гербарий БИН РАН - Образцы

Araceae

Amorphophallus tonkinensis Engl. & Gehrm.?

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 with erect inflorescence to 1 m tall in shady, humid rocky place. Peduncle dull olive green white spotted. Spathe pure light green, inflorescence axis pure white, male flowers white, female flowers light green. Occasional.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2857.

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

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.

Cactaceae

Opuntia 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. Lithophytic and occasionally terrestrial herb to 1 m tall on and among open rosks. Locally abundant. Flowers fright yellow. Aggressive weed.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2854.

Zingiberaceae

Hedychium speciosum Wall.?

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 to 1.2 m tall in shady place on very steep rocky slope. Fruita bright yellow orange, seeds bright red. Common.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2853.

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.

Piperaceae

Piper 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. Erect terrestrial and lithophytic herb or undershrub to 1.5 tall in shady place on very steep rocky slope. Inflorescences white. Common.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2851.

Vitaceae

Tetrasigma 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. Epiphytic vine about 1.5 m long in shady place on very steep rocky slope. Flower buds white. Not common.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2850.

Primulaceae

Lysimachia insignis Hemsl.

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 occasionally lithophytic herb to 1 m tall on shady rocks on very steep rocky slope. Flowers yellow, fruits white, translucent. Not rare.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2849.

Convallariaceae

Disporum 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. Terrestrial and occasionally lithophytic herb to 1 m tall on shady rocks along ridge edge above tall cliff. Flowers white. Not common.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2848.

Orchidaceae

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

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. Lithophytic and occasionally terrestrial herb on shady rocks along ridge edge above tall cliff. Flowers white, later pale yellow. Leaves with contrast silvery stripes. Locally very common.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2847.

Lamiaceae

Leonurus sibiricus L.

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 1.2 m tall on old rice field. Flowers purple-violet. Occasional.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2846.

Selaginellaceae

Selaginella 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. Terrestrial herb in shady wet place among big rocks Locally very common.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2845.

Commelinaceae

Pollia 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. Terrestrial and lithophytic herb in shady wet place among big rocks Flowers white. Locally common.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2844.

Cycadaceae

Cycas brachycantha K.D.Hill, T.H.Nguyen & L.K.Phan

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 palm-like plant with underground tuber-like stem and 1-5 leaves to 2 m long on very steep rocky slope. Young plants locally common. Mature samples not seen.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2843.

Pipeareceae

Piper 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. Erect terrestrial or lithophytic herb or undershrub to 1.5 m tall in shady humid place among large rocks. Inflorescences white. Not rare.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2842.

Orchidaceae

Didymoplexis pallens Griff.?

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 achlorophyllous herb in shady humid place among large rocks on steep slope. Very rare.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2841.

Myrsinaceae

Ardisia phankelociana C.M.Hu & G.Hao

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 or lithophytic shrub or small treelet to 2 m tall along ridge edge above vertical cliff. Flower buds pink, fruits bright red. Not rare.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2840.

Melastomataceae

Memecylon coeruleum Jack?

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. Treelet 3-4 m tall on rather open rocky steep slope. Not common.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2839.

Polypodiaceae s.l.

Lemmaphyllum microphyllum C.Presl

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. Creeping epiphytic fern on mossy tree in humid wet place along ridge edge above vertical cliff. Not common.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2838.

Polypodiaceae s.l.

Lemmaphyllum 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. Creeping epiphytic fern on mossy tree in humid wet place along ridge edge above vertical cliff. Locally common.

23 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2837.

Cycadaceae

Cycas brachycantha K.D.Hill, H.T.Nguyen & P.K.Loc

Female plant cultivated in Ba Be National park originated from Bac Kan Province, Ba Be District, Ba Be National Park. Rocky outcrops in primary evergreen broad-leaved forest on very steep rocky slopes composed by white crystalline marble-like highly eroded limestone around point 22º24’42’’N 105º38’06’E at elev. of about 700 m a.s.l. Erect palm-like tree 0.4-0.8 m tall. In observation of year 2001 & 2002 locally very common. Presently almost extinct due to overcollection for sale and cultivation as an ornamental plant.

23 April 2024, Nguyen Huu Cuong, L. Averyanov, T. Maisak, AL2400a.

Cycadaceae

Cycas brachycantha K.D.Hill, H.T.Nguyen & P.K.Loc

Male plant cultivated in Ba Be National park originated from Bac Kan Province, Ba Be District, Ba Be National Park. Rocky outcrops in primary evergreen broad-leaved forest on very steep rocky slopes composed by white crystalline marble-like highly eroded limestone around point 22º24’42’’N 105º38’06’E at elev. of about 700 m a.s.l. Erect palm-like tree 0.4-0.8 m tall. In observation of year 2001 & 2002 locally very common. Presently almost extinct due to overcollection for sale and cultivation as an ornamental plant.

23 April 2024, Nguyen Huu Cuong, L. Averyanov, T. Maisak, AL2399a.

Orchidaceae

Dendrobium crepidatum Lindl. & Paxton

Bac Kan Province, Ba Be District, Ba Be National Park. Dry evergreen broad-leaved secondary forest on cliffs composed by crystalline marble-like highly eroded limestone near lake shore around point 22º25’46’’N 105º36’58’E at elev. of about 170 m a.s.l. Epiphytic herb. Not common.

22 April 2024, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL2836.

Thismiaceae

Thismia mucronata Nuraliev

Lam Dong Province, Di Linh District, Nui San pass, broad-leaved evergreen forest on granite at elevation of about 800 m a.s.l. Terrestrial achlorophyllous plant near the small stream. Locally very common, more than 1000 plants are observed.

09 June 2024, Nguyen Van Canh, AL3251.