Herbarium LE - Specimens

FLORA OF LAOS Hin Nam No Nature Protected Area Arecaceae Arenga caudata (Lour.) H.E. Moore 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. Miniature palm to 1.5 m tall. Fruits green with purple bracts. Very common, occasional co-dominant of shrub forest stratum. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 538.

FLORA OF LAOS Hin Nam No Nature Protected Area Arecaceae Arenga westerhoutii Griff. 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 (female plant) with stem to 2 m tall and leaves 4-5(6) m long on very steep rocky slope near mountain top. Very common. Fruits dark glossy green. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 915.

FLORA OF LAOS Hin Nam No Nature Protected Area Arecaceae Arenga westerhoutii Griff. 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 (male plant) with stem to 2 m tall and leaves 4-5(6) m long on very steep rocky slope near mountain top. Very common. Flowers pale yellow, very fragrant. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 922.

FLORA OF LAOS Hin Nam No Nature Protected Area Arecaceae Rhapis laosensis Becc. 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. Miniature palm to 1 m tall. Very common, usual co-dominant of herbaceous forest stratum. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 547.

FLORA OF VIETNAM Aspidistra sp. Central Vietnam, Quang Tri province, Dakrong district, Та Long commune, Dakrong Nature Reserve, around point 16036’27.9”N 106°53’00.6 E, shady primary and secondary evergreen broad-leaved lowland forest on limestone karstic hillsides at elevation 200-250 m a.s.l., terrestrial herb on shady reclined slope, common, 18 May, 2017, Le Tuan Anh, Le Thi Xuan, LTA 135a.

FLORA OF VIETNAM Tupistra fungilliformis F.T. Wang & S. Yun Liang var. Ha Giang Prov, Вас 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. Epiphytic herb on old mossy tree on steep stream slope. Fruits dark green. Very rare. 14 November 2014, L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz, CPC 7464, photos FI and coll, in 10 Jan. 2019, L. Averyanov, CPC 7464/1. Flowers purple, stigma, stamens and base of tube (inside) white. Photos d-EXSICCATES OF VIETNAMESE FLORA 0334 / CPC 7464/1 © L. Averyanov

FLORA OF LAOS Hin Nam No Nature Protected Area Myrtaceae Syzygium baviense (Gagnep.) Merr. & L.M.Perry ? Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes at summit of Phou Chuang (Poujeuang) Mt. around point 17°35'00.3"N, 105°47'35.6"E. Primary evergreen mixed and coniferous dense wind-formed forest at elev. 1000-1400 m a.s.l. Treelet on mountain top. Fruits bright red. Occasional. 4 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 611.

FLORA OF LAOS Hin Nam No Nature Protected Area Myricaceae Myrica esculenta Buch.-Ham. ex D. Don Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes at summit of Phou Chuang (Poujeuang) Mt. around point 17°35'00.3"N, 105°47'35.6"E. Primary evergreen mixed and coniferous dense wind-formed forest at elev. 1000-1400 m a.s.l. Treelet on mountain top. Occasional. 4 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 612.

FLORA OF VIETNAM Tupistra fungilliformis F.T. Wang & S. Yun Liang var. Ha Giang Prow, Вас 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 1 around point 22°38,43.8” N 105°19*19.8**E. Epiphytic herb on old mossy tree on steep stream slope. Fruits dark green. Very rare. 14 November 2014, L Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz, CPC 7464, photos FI. and coll, in 10 Jan 2019, L. Averyanov, CPC 7464/1. Flowers purple, stigma, stamens and base of tube (inside) white. Photos. d-EXSICCATES OF VIETNAMESE FLORA 0334 / CPC 7464/1 © L. Averyanov

VIETNAM, central Vietnam, Central Vietnam, Quang Tri province, Dakrong district, Dakrong commune, around point 16.614583°N 106.863556°E, 150–200 m a.s.l., shady reclined slopes in assemblage with Pachystylidium hirsutum, Tropidia angulosa and Impatiens sp., flowers in August – September, common, 25 August 2018, Le Tuan Anh, Hoang Le Tuan Anh, LTA 536 (holotype—LE01048210!; isotypes—VNMN!). Plate:—EXICCATES OF VIETNAMESE FLORA 0335 / LTA 135 & LTA 53

FLORA OF LAOS Hin Nam No Nature Protected Area Myrtaceae Syzygium baviense (Gagnep.) Merr. & L.M.Perry ? 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. Shrub or treelet 3-4 m tall on shady rocky slope. Fruits bright red. Common. 9 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 869.

FLORA OF VIETNAM Aspidistra graminifolia Aver. & Tillich. Central Vietnam, Dak Lak province, M'Drak district, Chu Mu commune, around point 12°42’27.0”N 108°52,42.9”E, 500-1100 m a.s.l., evergreen broad-leaved forest at elevation about 500-1100 m a.s.l., terrestrial herb on shady reclined slope, not common. Flowers white, free perianth lobes yellowish, speckled with purple-brown, anthers yellow. 1 September 2018, Pham Thi Thanh Dat, Le Tuan Anh, LTA 547.

VIETNAM, central Vietnam, Quang Tri province, Dakrong district, Ta Long commune, Dakrong Nature Reserve, around point 16.60775°N 106.8835°E, shady primary and secondary evergreen broad-leaved lowland forest on karstic limestone hillsides at elevation 200–250 m a.s.l., terrestrial herb on shady slope, common, 18 May, ‎2017, Le Tuan Anh, Le Thi Xuan, LTA 135 (LE01048206!, VNMN!).

FLORA OF LAOS Hin Nam No Nature Protected Area Myrtaceae Syzygium campylocarpum (Gagnep.) Merr. & L.M.Perry Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes at summit of Phou Chuang (Poujeuang) Mt. around point 17°35'00.3"N, 105°47'35.6"E. Primary evergreen mixed and coniferous dense wind-formed forest at elev. 1000-1400 m a.s.l. Tree on mountain top. Fruits dull green. Occasional. 4 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 625.

FLORA OF VIETNAM Aspidistra sp. Central Vietnam, Quang Tri province, Dakrong district. Та Long commune. Dakrong Nature Reserve, around point 16°36’27.9”N 106°53’00.6” E, shady primary and secondary evergreen broad-leaved lowland forest on limestone karstic hillsides at elevation 200-250 m a.s.L, terrestrial herb on shady reclined slope, common, 18 May, 2017, Le Tuan Anh, Le Thi Xuan. LTA 135a.

FLORA OF VIETNAM Tupistra fungilliformis F.T. Wang & S. Yun Liang var. Cao Bang Prov., Bao Lac Distr., Hong An municipality, Mi Lung village. Primary broadleaved and mixed humid evergreen forest (with Podocarpus, Pinus, Fokienia and Tsuga) on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation about 1500-1550 m a.s.l. around point 22°49’15.4” N 105°49’53” E. Large humus epiphyte on old tree in shady humid karst funnel on rocky mossy mountain slope. Flowers dull yellow to almost white, perianth segments dirty purple-brown, anthers and stigma dull yellowish. Very rare. 21 November 2014, L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz, CPC 7576, photos. FI and coll, in 10 Jan. 2019, L Averyanov, CPC 7576/1. Flowers purple, stigma, stamens and base of tube (inside) white. Photos.

FLORA OF LAOS Hin Nam No Nature Protected Area Myrtaceae Syzygium antisepticum (Blume) Merr. & L.M.Perry ? 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. Treelet 3-4 m tall on shady rocky slope. Fruits white. Occasional. 9 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 848.

FLORA OF LAOS Hin Nam No Nature Protected Area Moraceae Ficus curtipes Corner 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 4-5 m tall on exposed rocks near mountain top. Common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 982.

FLORA OF LAOS Hin Nam No Nature Protected Area Moraceae Streblus indicus (Bureau) Corner ? 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. Tree 5-7 m tall on steep shady rocky slope. Very common, usual co dominant of second forest stratum. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 725.

FLORA OF LAOS Hin Nam No Nature Protected Area Myrsinaceae Ardisia ramondiiformis Pit. 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. Undershrub to 0.5 m tall in shady place. Flowers pinkish. Not rare. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 531.

FLORA OF LAOS Hin Nam No Nature Protected Area Myrsinaceae Ardisia 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. Treelet to 6(8) m tall. Flower buds light pink-violet. Not common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 541.

FLORA OF LAOS Hin Nam No Nature Protected Area Moraceae Artocarpus melinoxyla Gagn. 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. Tree to 20 m tall on shady rocky slope. Fruits greenish. Occasional. 8 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 815.

FLORA OF LAOS Hin Nam No Nature Protected Area Moraceae Streblus indicus (Bureau) Corner ? 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. Evergreen treelet 4-6 m tall on steep rocky slope. Flowers yellowish to almost white. Very common, main co-dominant of the second forest stratum at 200-400 m a.s.l. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 734.

FLORA OF LAOS Hin Nam No Nature Protected Area Myrsinaceae Ardisia 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. Treelet to 6(8) m tall. Flower buds light pink-violet. Not common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 541.

FLORA OF LAOS Hin Nam No Nature Protected Area Myrsinaceae Ardisia crispa (Thunb.) A.DC. ? 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. Undershrub to 0.5 m tall on rocky slope. Flower buds yellowish. Very common. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 701

FLORA OF LAOS Hin Nam No Nature Protected Area Moraceae Streblus ilicifolius (Vidal) Corner 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. Tree 10-15 m tall. Flowers white. Very common, main co-dominant of lowland valley forest. 8 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 811.

FLORA OF LAOS Hin Nam No Nature Protected Area Moraceae Ficus superba Miq. 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. Treelet on rocky slope along river. Syconia light green. Occasional. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 709

FLORA OF LAOS Hin Nam No Nature Protected Area Myrsinaceae Ardisia villosa Roxb. 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. Shrub 1.5-2.5 m tall on shady rocky slope. Flower buds green, pedicels purple. Occasional. 9 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 847.

FLORA OF LAOS Hin Nam No Nature Protected Area Myrsinaceae Embelia ribes Burm.f. 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 4-5 m long in rather open place. Fruits green. Not rare. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 1056.

FLORA OF LAOS Hin Nam No Nature Protected Area Meliaceae Heynea trijuga Sims ( = Walsura intermedia Craib) ? 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. 250-350 m a.s.l. Treelet about 3 m tall. Flowers white. Common. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 722.

FLORA OF LAOS Hin Nam No Nature Protected Area Menispermaceae Stephania 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. Herbaceous vine to 2 m long in open place. Not common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 908.

FLORA OF LAOS Hin Nam No Nature Protected Area Moraceae Ficus variolosa Benth. Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes at summit of Phou Chuang (Poujeuang) Mt. around point 17°35'00.3"N, 105°47'35.6"E. Primary evergreen mixed and coniferous dense wind-formed forest at elev. 1000-1400 m a.s.l. Shrub or small treelet on mountain top. Syconia green to purple. Occasional. 4 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 599.

FLORA OF LAOS Hin Nam No Nature Protected Area Moraceae Ficus sundaica Bl. 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 5-8 m tall on open rocky slope near mountain top. Very common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 1026.

FLORA OF LAOS Hin Nam No Nature Protected Area Meliaceae Aglaia elaeagnoidea (A.Juss.) Benth. ( = Aglaia poilanei Pellegr.) 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. Shrub 1-3 m tall on rocky slope. Fruits light brownish. Occasional. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 707

FLORA OF LAOS Hin Nam No Nature Protected Area Menispermaceae Stephania japonica (Thunb.) Miers Laos, Khammoune prov., Boualapha distr., Ban Dou village, around Khuay cave, at 17°30'35.1"N, 105°51'28.7"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 250-390 m a.s.l. Herbaceous vine 3-4 m long in open place at the base of mountain. Common. 10 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 894.

FLORA OF LAOS Hin Nam No Nature Protected Area Moraceae Ficus sarmentosa J.E. Sm. Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes at summit of Phou Chuang (Poujeuang) Mt. around point 17°35'00.3"N, 105°47'35.6"E. Primary evergreen mixed and coniferous dense wind-formed forest at elev. 1000-1400 m a.s.l. Treelet on mountain top. Syconia dull olive-green. Occasional. 4 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 623.

FLORA OF LAOS Hin Nam No Nature Protected Area Menispermaceae Stephania 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. Herbaceous vine 3-4 m long on open rocks near mountain top. Occasional. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 946.

FLORA OF LAOS Hin Nam No Nature Protected Area Moraceae Ficus auriculata Lour. 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. Tree to 20 (25) m tall. Syconia purple to dirty-purple. Common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 559.

FLORA OF LAOS Hin Nam No Nature Protected Area Moraceae Ficus tinctoria Forst.f. 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. Scandent shrub 3-4 m tall on open rocky slope near mountain top. Common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 1025.

FLORA OF LAOS Hin Nam No Nature Protected Area Moraceae Ficus microcarpa L.f. 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. Treelet 6-8 m tall among open rocks near mountain top. Syconia light green. Common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 952.

FLORA OF LAOS Hin Nam No Nature Protected Area Melastomataceae Memecylon harmandii Guillaumin ? Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes at summit of Phou Chuang (Poujeuang) Mt. around point 17°35'00.3"N, 105°47'35.6"E. Primary evergreen mixed and coniferous dense wind-formed forest at elev. 1000-1400 m a.s.l. Treelet on mountain top. Ripe fruits dark dirty purple-violet. Occasional. 4 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 629.

FLORA OF LAOS Hin Nam No Nature Protected Area Melastomataceae Memecylon edule Roxb. 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. Treelet or shrub 3-5 m tall on ridge top. Common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 504.

FLORA OF LAOS Hin Nam No Nature Protected Area Meliaceae Munronia lancifolia sp. nov. ? (M. unifoliolata Oliv. & M. petelotii Merr. 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 herb or undershrub to 0.5 m tall on steep shady rocky slope. Flowers white. Very common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 910.

FLORA OF LAOS Hin Nam No Nature Protected Area Meliaceae Munronia lancifolia Aver. & S.K. Nguyen, sp. nov. ? (M. unifoliolata Oliv. & M. petelotii Merr. 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 or undershrub 10-15 cm tall on open rocky slope. Flowers white. Occasional. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 687. This is closest to M. unifoliolata, but different from the staminal tube (with 10 long teeth). This genus until now recorded only 4 species (2014). Ii is also closed to M. longipetiola described from Vietnam (2014) in Quang Ninh province, all other species of M. the staminal tube divided 2 o 3. This species not divided.

FLORA OF LAOS Hin Nam No Nature Protected Area Melastomataceae Medinilla decidua sp. nov. ? (Allomorphia/Oxyspora?) 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. Deciduous shrub to 2 m tall on exposed rocks near mountain top. Common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 1003.

FLORA OF LAOS Hin Nam No Nature Protected Area Melastomataceae Memecylon edule Roxb. 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 lowland forest at elev. 300-400 m a.s.l. Tree 6-8 m tall. Very common, usual co-dominant of the second forest stratum at 200-400 m a.s.l. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 740.

FLORA OF LAOS Hin Nam No Nature Protected Area Meliaceae Amoora sp.? Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes at summit of Phou Chuang (Poujeuang) Mt. around point 17°35'00.3"N, 105°47'35.6"E. Primary evergreen mixed and coniferous dense wind-formed forest at elev. 1000-1400 m a.s.l. Treelet 3-4 m tall. Common. 4 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 636a.

FLORA OF LAOS Hin Nam No Nature Protected Area Meliaceae Walsura sp. 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. Treelet 3-5 m tall on mountain top. Common. 5 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 669a.