Herbarium LE - Specimens

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Dryopteridaceae) Polystichum hookerianum (C.Presl) C.Chr. 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. Terrestrial fern in shady place. Occasional. 8 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 756.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Dryopteridaceae) Bolbitis appendiculata (Willd.) K.Iwats. 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. 400-600 m a.s.l. Creeping lithophytic fern on shady mossy rocks. Very common. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 735.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Tectariaceae) Tectaria herpetocaulos Holttum 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. Terrestrial fern in shady place. Very common. 8 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 757.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Tectariaceae) Tectaria brachiata (Zoll. & Moritzi) C.V.Morton 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. Terrestrial fern in shady place. Very common. 8 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 758.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Pyrrosia lingua (Thunb.) Farw. 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. Creeping epiphyte and lithophyte. Very common. 4 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 598.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Pteridaceae) Pteris venusta Kunze 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. Terrestrial fern on steep shady rocky slope. Very common. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 724.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Lygodiaceae) Lygodium polystachyum T. Moore 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. Fern with vine-like fronds 3-4 m long in open place. Occasional. 9 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 849.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Drynaria bonii Christ 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. Epiphyte and occasionally lithophytic fern on rocky slopes near mountain top. Occasional. 9 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 827.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Drynaria bonii Christ 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. Epiphyte and occasionally lithophytic fern on rocky slopes near mountain top. Occasional. 9 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 827.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Pteridaceae) Antrophyum coriaceum (D. Don) T. Moore 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. Epiphyte on shady place. Occasional. 8 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 744.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Pteridaceae) Cheilosoria belangeri (Bory) Ching & Shing ( = Cheilanthes belangeri (Bory) C. Chr.) 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 fern on exposed rocks near mountain top. Not common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 1000.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Drynaria rigidula (Sw.) Bedd. 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. Epiphyte and lithophyte among open rocks near mountain top. Common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 951.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Microsorum steerei (Harr.) Ching ? 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. Lithophytic and epiphytic fern on shady rocky slope. Occasional. 9 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 854.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Aspleniaceae) Asplenium normale D.Don 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. Lithophyte on shady mossy cliff. Common. 5 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 678a.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Aspleniaceae) Hymenasplenium excisum (C.Presl) S.Linds. ( = Asplenium unilaterale Lam.) 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. Lithophytic fern on vertical shady mossy cliff. Common. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 688.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Pyrrosia lanceolata (L.) Farw. 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. Creeping epiphytic and lithophytic vine on rocky slope near mountain top. Very common. 10 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 898.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Grammitis lasiosora (Blume) Ching 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. Miniature epiphyte on mossy tree on mountain top. Not rare. 4 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 618.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Tectariaceae) Tectaria herpetocaulos Holttum 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. Terrestrial fern in shady place. Very common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 535.

FLORA OF LAOS Nakai-Nam Theun Protected Area Polypodiaceae s.l. (Pteridaceae) Pteris venusta Kunze 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 rhizomatous fern on steep rocky slope. Occasional. 15 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, AL 1077.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Tectariaceae) Tectaria angulata (Willd.) C.Chr. ? 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. Terrestrial fern in shady place. Very common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 527.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Plagiogyriaceae) Plagiogyria euphlebia (Kunze) Mett. ( = P. maxima C. Chr.) 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. Terrestrial fern in shady place on mountain top. Not common. 4 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 638a.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Leptochilus decurrens Blume 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. Creeping lithophyte on shady mossy rocks on rocky slope. Occasional. 9 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 873.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Colysis 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. Lithophytic fern on mossy shady rocks. Very common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 521.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Drynaria quercifolia (L.) J. Sm. 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. Epiphyte and lithophyte on rocky slope near mountain top. Occasional. 10 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 901.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Pteridaceae) Adiantum flabellulatum L. 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 fern on shady rocky slope. Occasional. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 931.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Pteridaceae) Calciphilopteris ludens (Hook.) Yesilyurt & H. Schneid. ( = Doryopteris ludens (Hook.) J. Sm.) 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 fern on very steep rocky slope near mountain top. Not rare. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 917.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Pteridaceae) Antrophyum coriaceum (D. Don) T. Moore 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. Epiphyte on shady rocky slope. Not common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 913.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Thelypteridaceae) Cyclosorus parasiticus (L.) Farw. 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. Terrestrial and lithophytic fern among shady stream rocks. Very common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 589.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Dryopteridaceae) Bolbitis sinensis (Baker) K.Iwats. 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. Lithophytic fern on shady rocks. Common. 5 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 651a.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Neocheiropteris normalis (D.Don) Tagawa ( = Microsorum normale (D.Don) Ching) 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. Creeping epiphyte and lithophyte. Common. 5 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 654a.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Selliguea rhynchophylla (Hook.) Fraser-Jenk. ( = Crypsinus rhynchophyllus (Hook.) Copel.) 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. Creeping epiphytic fern on mossy tree on mountain top. Locally very common. 5 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 657a.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Arthromeris amplexifolia (Christ) Ching 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. Creeping epiphytic and occasionally lithophytic fern in shady places on mountain top. Very common. 5 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 660a.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Pteridaceae) Haplopteris flexuosa (Fee) E.H. Crane ( = Vittaria flexuosa Fee) 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. Epiphytic and occasionally lithophytic fern in shady places on mountain top. Locally common. 5 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 659a.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Dryopteridaceae) Polystichum biaristatum (Blume) T. 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. Terrestrial and lithophytic fern in shady places. Very common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 556.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. Diplazium 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. Terrestrial fern in shady places. Very common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 554.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Aglaomorpha coronans (Mett.) Copel. 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 fern among exposed rocks near mountain top. Very common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 991.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Colysis 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. Lithophytic fern on mossy shady rocks. Very common. 3 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 521.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Drynaria rigidula (Sw.) Bedd. 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. Creeping lithophytic fern on exposed rocks near mountain top. Common. 11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 988.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Davalliaceae) Davallia griffithiana Hook. 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. Creeping epiphyte and lithophyte on mountain top. Common. 5 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 675a.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae Loxogramme scolopendrioides (Gaudich.) C.V.Morton 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. Lithophytic fern on shady mossy rocks. Common. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 690.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Aspleniaceae) Asplenium prolongatum Hook. ? 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. Lithophytic fern on shady mossy rocks. Common. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 689.

FLORA OF LAOS Hin Nam No Nature Protected Area Polypodiaceae s.l. (Aspleniaceae) Hymenasplenium excisum (C.Presl) S.Linds. ( = Asplenium unilaterale Lam.) 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. Lithophytic fern on vertical shady mossy cliff. Common. 6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 688.

FLORA OF VIETNAM

All photos © L. Averyanov & K.S. Nguyen

FLORA OF VIETNAM

All photos © L. Averyanov & K.S. Nguyen

FLORA OF VIETNAM

All photos © L. Averyanov & K.S. Nguyen

FLORA OF VIETNAM Polypodiaceae s.l. Davallia sp. Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23º03ʹ13.4ʺN 104º51ʹ48.8ʺE, at elevation 1050-1150 m a.s.l., steep slopes of stream valley composed with eroded stratified highly eroded limestone. Primary evergreen broad-leaved very humid forest. Creeping epiphyte on mossy tree. Common. 21 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 510.

All photos © L. Averyanov & K.S. Nguyen

FLORA OF VIETNAM Polypodiaceae s.l. Lepisorus sp.? Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23º03ʹ13.4ʺN 104º51ʹ48.8ʺE, at elevation 1050-1150 m a.s.l., steep slopes of stream valley composed with eroded stratified highly eroded limestone. Primary evergreen broad-leaved very humid forest. Creeping epiphytic vine on mossy tree. Very common. 21 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 521.

All photos © L. Averyanov & K.S. Nguyen

FLORA OF VIETNAM Polypodiaceae s.l. Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23º03ʹ13.4ʺN 104º51ʹ48.8ʺE, at elevation 1050-1150 m a.s.l., steep slopes of stream valley composed with eroded stratified highly eroded limestone. Primary evergreen broad-leaved very humid forest. Creeping lithophytic fern on exposed mossy rocks. Common. 21 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 526.

All photos © L. Averyanov & K.S. Nguyen

FLORA OF VIETNAM Polypodiaceae s.l. Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23º03ʹ41.5ʺN 104º50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Creeping lithophytic and epiphytic fern in open rocky place. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 573.

All photos © L. Averyanov & K.S. Nguyen

FLORA OF VIETNAM Polypodiaceae s.l. Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23º03ʹ41.5ʺN 104º50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Creeping epiphytic vine on mossy tree. Very common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 586.

All photos © L. Averyanov & K.S. Nguyen