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FLORA OF VIETNAM

FLORA VIETNAMICA.

FLORA VIETNAMICA

FLORA VIETNAMICA. Soviet-Vietnamese Expedition. LX-VN No 4008. 26.01.1988. N.Vietnam, Prov. Vinh Phu, Tam Dao. Summit of Tam Dao 2, ericaceous scrub at elevation 1300 m a.s.l.

FLORA OF VIETNAM

FLORA OF VIETNAM. Lycopodiaceae. Huperzia sp. Cao Bang Prov., Bao Lac Distr., Dinh Phung municipality, Ban O village. Primary mixed and coniferous evergreen humid forest with (Pinus sp., Pseudotsuga sinensis, Podocarpus neriifolius) on very steep slopes and on mountain tops composed by solid highly eroded limestone at elevation 1200-1300 m a.s.l. around point 22°45'24.8"N 105°46'47.9"E. Terrestrial herb in shady places on rocky slopes. Not common. 24 November 2014 CPC 7648. Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz

FLORA OF VIETNAM. Fam. Lycopodiaceae. Lycopodium cernuum. N. Vietnam, prov. Cao Bang, distr. Nguyen Binh, municipality Nguyen. Binh (N 22°37' E 105°52'), about 41 km to W from Cao Bang town. Elevation from Le A pass to Na Ni mt. peak at 1400-1900 m alt. Open. wet steep slopes on soils developed on granite and shale rocks. Common. No CBL 003  11-12 Nov. 1998. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 6300-98). . Collectors: Averyanov L., N.Q.Binh, N.T.Hiep, P.K.Loc, N.X.Tam.

FLORA OF INDO-CHINA. Hue and Vicinity. Lycopodium cernuum L. No 116, R.W. Squires, Jan.-May, 1927

FLORA OF VIETNAM

FLORA OF VIETNAM. Fam. Lycopodiaceae. Lycopodium clavatum. N. Vietnam, prov. Cao Bang, distr. Nguyen Binh, municipality Nguyen. Binh (N 22°37' E 105°52'), about 41 km to W from Cao Bang town. Elevation from Le A pass to Na Ni mt. peak at 1400-1900 m alt. Open. wet steep slopes on soils developed on granite and shale rocks. Common. No CBL 002  11-12 Nov. 1998. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 6300-98). . Collectors: Averyanov L., N.Q.Binh, N.T.Hiep, P.K.Loc, N.X.Tam.

FLORA OF VIETNAM. Lycopodiaceae. Lycopodium cernuum L. South Vietnam, Prov. Kontum. NW slopes of Ngoc Linh mountain system at 1800 m elevation. Open secondary forest. Herb up to 1 m high. No. VH 180   23 February 1995. International Botanical Expedition sponsored by the National Geographic Society (Grant 5094-93). Participants: L. Averyanov, N.T. Ban, N. Q. Binh, A. Budantzev, L. Budantzev, N.T. Hiep, D.D. Huyen, P.K. Loc, N.X. Tam, G. Yakovlev.

FLORA OF INDOCHINA Herbarium of Botanical Survey, Lingnan University Canton, China. 4th Indo-China Expedition. No 299979 W.T. Tsang May 18 - July 5, 2940. Lycopodium cernuum L. Sai Wong Mo Shan (Sai Vong Mo Leng), Lung Wan Willage, Dam-ha, Tonkin. Collected in cooperation with Arnold A, Harvard University and Distributed by the Arnold Arboretum.

FLORA OF VIETNAM

FLORA OF VIETNAM

FLORA OF VIETNAM

FLORA OF LAOS Hin Nam No Nature Protected Area Cycadaceae Cycas sp. Laos. Khammoune prov., Boualapha distr., Nong Seng village, Vang Phae Lay mountain, around point 17°31'02.7"N, 105°47'17.2"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 300-530 m a.s.l. Palm-like tree to 3 m tall on open rocks near mountain top. Not rare. 11 May 2018. L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 954.

FLORA OF LAOS Nakai-Nam Theun Protected Area Convallariaceae Ophiopogon sp. 2 Laos, Khammoune prov., Boualapa distr., Langkhang village, steep southern slopes of sandstone ridge allied to the road from the north between points 17°34'02.2"N 105°42'42.6"E, 200 m and 17°34'51.1"N 105°43'01.2"E, 535 m a.s.l. Primary lowland semideciduous and evergreen dry forest on very steep rocky slopes. Terrestrial herb on very steep rocky slope. Not rare. 15 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, AL 1080.

FLORA OF LAOS Hin Nam No Nature Protected Area Cycadaceae Cycas pectinata Buch.-Ham. Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes of Phou Chuang (Poujeuang) Mt. around point 17°34'13.3"N, 105°47'57.5"E. Primary evergreen broad-leaved dry forest at elev. 650-750 m a.s.l. Palm-like tree about 4 m tall on rocky cliff. Female plant, cone about 40 cm in diameter. Not rare. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 718.

FLORA OF LAOS Hin Nam No Nature Protected Area Cycadaceae Cycas pectinata Buch.-Ham.? Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes at summit of Phou Chuang (Poujeuang) Mt. around point 17°35'18.1"N, 105°47'47.5"E. Primary evergreen mixed and coniferous dense wind-formed forest at elev. 1000-1400 m a.s.l. Palm-like tree about 5 m (up to 10 m) tall on rocky slope near mountain top. Occasional. 5 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 686.

FLORA OF LAOS Hin Nam No Nature Protected Area Convallariaceae Peliosanthes cryptogamica sp. nov. ? (P. inaperta Aver. & N. Tanaka aff.) Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes of Phou Chuang (Poujeuang) Mt. around point 17°34'13.3"N 105°47'57.5"E. Primary evergreen broad-leaved dry forest at elev. 700-1000 m a.s.l. Clustering terrestrial and lithophytic herb on rocky slopes. Very common, locally abundant. Usual co-dominant of herbaceous forest stratum. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 591.

FLORA OF LAOS Hin Nam No Nature Protected Area Convallariaceae Aspidistra sp. Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes of Phou Chuang (Poujeuang) Mt. around point 17°34'13.3"N 105°47'57.5"E. Primary evergreen broad-leaved dry forest at elev. 700-1000 m a.s.l. Creeping herb in shady place. Leaves uniformly green, finely plicate. Fruits dull olive-green Very common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 564.

FLORA OF LAOS Hin Nam No Nature Protected Area Convallariaceae Aspidistra sp. Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes of Phou Chuang (Poujeuang) Mt. around point 17°34'13.3"N 105°47'57.5"E. Primary evergreen broad-leaved dry forest at elev. 700-1000 m a.s.l. Creeping terrestrial herb in shady place. Common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 523.

FLORA OF LAOS Hin Nam No Nature Protected Area Commelinaceae Murdannia edulis (Stokes) Faden ? Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes at summit of Phou Chuang (Poujeuang) Mt. around point 17°35'18.1"N, 105°47'47.5"E. Primary evergreen mixed and coniferous dense wind-formed forest at elev. 1000-1400 m a.s.l. Terrestrial herb in open rocky place. Locally common. 5 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 646a.

FLORA OF LAOS Hin Nam No Nature Protected Area Convallariaceae Peliosanthes cryptogamica sp. nov. ? (P. inaperta Aver. & N. Tanaka aff.) Laos, Khammoune prov., Boualapha distr., Nong Seng village, Vang Phae Lay mountain, around point 17°31'02.7"N, 105°47'17.2"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 300-530 m a.s.l. Terrestrial and lithophytic herb on steep shady rocky slope. Very common to abundant. Usual co-dominant of forest herbaceous stratum. Flowers dark green, cleistogamous (?). 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 909.

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

FLORA OF LAOS Hin Nam No Nature Protected Area Connaraceae Connarus semidecandrus Jack Laos, Khammoune prov., Boualapha distr., Nong Seng village, Chanh Daeng mountain, around point 17°31'11.1"N, 105°46'41.4"E. Secondary dry evergreen and semideciduous broad-leaved forest on sandy alluvial flat valley along river between karstic limestone hills at about 180 m a.s.l. Woody vine to 10 m long. Fruits bright orange. Not common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 1049.

FLORA OF LAOS Hin Nam No Nature Protected Area Connaraceae Rourea minor (Gaertn.) Leenh. 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 very steep rocky slope near karstic hill top composed with solid, marble-like highly eroded limestone at 300-500 m a.s.l. Woody vine to 10 m long in rather open place. Fruits orange-red. Occasional. 8 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 789.

FLORA OF LAOS Hin Nam No Nature Protected Area Cyperaceae Scleria oblata J. Kern ? Laos, Khammoune prov., Boualapha distr., Nong Seng village, Vang Phae Lay mountain, around point 17°31'02.7"N, 105°47'17.2"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 300-530 m a.s.l. Terrestrial sedge on very steep rocky slope near mountain top. Common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 916.

FLORA OF LAOS Hin Nam No Nature Protected Area Cycadaceae Cycas sp. 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. Palm like treelet about 1.5 m tall on rocky mountain slope (some trees to 10 m tall). Not common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 978.

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 Nakai-Nam Theun Protected Area Cycadaceae Cycas simplicipinna (Smitinand) K.D. Hill Laos, Khammoune prov., Boualapa distr., Langkhang village, steep southern slopes of sandstone ridge allied to the road from the north between points 17°34'02.2"N 105°42'42.6"E, 200 m and 17°34'51.1"N 105°43'01.2"E, 535 m a.s.l. Primary lowland semideciduous and evergreen dry forest on very steep rocky slopes. Palm-like plant with caudex underground stem 15-20 cm long and about 10 cm in diameter on very steep rocky slope. Not rare. 15 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, AL 1075.

FLORA OF LAOS Hin Nam No Nature Protected Area Cucurbitaceae Adenia heterophylla (Blume) Koord. Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes of Phou Chuang (Poujeuang) Mt. around point 17°33'14.4"N, 105°47'50.4"E. Primary semideciduous and evergreen broad-leaved dry forest at elev. 350-450 m a.s.l. Woody vine 10-12 m long on steep open rocky slope. Fruits bright red. Not common. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 726.

FLORA OF LAOS Hin Nam No Nature Protected Area Convallariaceae Aspidistra sp. Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes of Phou Chuang (Poujeuang) Mt. around point 17°34'13.3"N 105°47'57.5"E. Primary evergreen broad-leaved dry forest at elev. 700-1000 m a.s.l. Creeping herb in shady place. Leaves uniformly green, finely plicate. Fruits dull olive-green Very common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 564.

FLORA OF LAOS Hin Nam No Nature Protected Area Convallariaceae Peliosanthes argenteostriata Aver. & N. Tanaka Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes at summit of Phou Chuang (Poujeuang) Mt. around point 17°35'18.1"N, 105°47'47.5"E. Primary evergreen mixed and coniferous dense wind-formed forest at elev. 1000-1400 m a.s.l. Terrestrial herb on shady rocky slope. Leaves dark glossy green, often with medial whitish stripe. Common. 5 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 664a.

FLORA OF LAOS Hin Nam No Nature Protected Area Convallariaceae Ophiopogon longifolius Decne. Laos, Khammoune prov., Boualapha distr., Vang Maner village, around point 17°29'39.3"N, 105°50'24.6"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 350-430 m a.s.l. Terrestrial acaulescent herb with linear leaves on shady rocky slope among rocks. Not common. 9 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 884. Flowered in cult. And identified in 17 September 2018, Photo N.S. Khang.

FLORA OF LAOS Hin Nam No Nature Protected Area Combretaceae 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. Tree 10-15 m tall on rocky slope near mountain top. Very common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 1020.

FLORA OF LAOS Nakai-Nam Theun Protected Area Convallariaceae Peliosanthes cryptogamica sp. nov. ? (P. inaperta Aver. & N. Tanaka aff.) Laos, Khammoune prov., Boualapa distr., Langkhang village, steep southern slopes of sandstone ridge allied to the road from the north between points 17°34'02.2"N 105°42'42.6"E, 200 m and 17°34'51.1"N 105°43'01.2"E, 535 m a.s.l. Primary lowland semideciduous and evergreen dry forest on very steep rocky slopes. Terrestrial herb on shady rocky slope. Very common, co-dominant of herbaceous forest stratum. 15 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, AL 1076.

FLORA OF LAOS Hin Nam No Nature Protected Area Convallariaceae Peliosanthes cryptogamica sp. nov. ? (P. inaperta Aver. & N. Tanaka aff.) Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes of Phou Chuang (Poujeuang) Mt. around point 17°34'13.3"N, 105°47'57.5"E. Primary evergreen broad-leaved dry forest at elev. 300-600 m a.s.l. Terrestrial herb on shady rocky slope. Very common. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 691.

FLORA OF LAOS Hin Nam No Nature Protected Area Convallariaceae Aspidistra sp. Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes of Phou Chuang (Poujeuang) Mt. around point 17°34'13.3"N 105°47'57.5"E. Primary evergreen broad-leaved dry forest at elev. 700-1000 m a.s.l. Creeping herb in shady places. Leaf finely longitudinally folded. Very common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 545.