Begonia wenshanensis C.M.Hu ex C.Y.Wu & T.C.Ku

Averyanov, Leonid V., Nuraliev, Maxim S., Konstantinov, Eugene L., Maisak, Tatiana V., Kopylov-Guskov, Yury O., Lyskov, Dmitry F., Quang, Bui Hong, Kuznetsov, Andrey N., Kuznetsova, Svetlana P., Nguyen, Khang Sinh & Shui, Yu-Min, 2021, New and noteworthy species of Begonia (Begoniaceae) from Vietnam and Laos, Phytotaxa 522 (2), pp. 75-93 : 89

7. Begonia wenshanensis C.M.Hu ex C.Y.Wu & T.C.Ku (1995: 262, Fig. 10) ( Fig. 7 )

Ku (1999: 168), Shui et al. (2002: 325, 2019b: 220), Huang & Shui (2006: 163), Gu et al. (2007: 203, Fig. 225 5–9), Shui & Chen (2017: 98), Dong & Liu (2019: 37).

B. sect. Platycentrum ( Klotzsch 1855: 243) de Candolle (1859: 134).

TYPE:— CHINA. Yunnan Province: Wenshan mt. , in mixed forests, 2000 m, 17 August 1947, Feng K. M. 11323 (holotype PE; isotypes E: E00022104 photo!, KUN) .

Ecology and phenology:— Evergreen broad-leaved forests, moist environments along streams, mountain bamboo thickets, at 1000–2200 m a.s.l. Flowering in June–October, fruiting from August.

Distribution: — China: Yunnan Province (Funing, Wenshan); northern Vietnam: Cao Bang Province (Phia Oac- Phia Den National Park) and Lao Cai Province (Bat Xat Nature Reserve).

Note:— The species is reported here from Vietnam for the first time.

Specimens examined:— VIETNAM. Lao Cai Province: Bat Xat District, Bat Xat Nature Reserve, 4 km SSE of Y Ty village , disturbed forest, 22°36’46’’N 103°37’22’’E, elev. 1980 m, 13 June 2019, Nuraliev M. S. 2726 ( E, MW: MW0757094 , MW0757095 ; photos LE: LE01093024 http://en.herbariumle.ru/?t=occ&id=43979) ; Cao Bang Province: Nguyen Binh District, Phia Oac-Phia Den National Park, 11 km WSW of Nguyen Binh town, Phia Oac summit area, wet foggy mossy crooked forest with bamboo on slope, 22°36’58’’N 105°51’49’’E, elev. 1900 m, 03 October 2018, Nuraliev M. S. 2235 ( E, MW: MW0757093 ; photos LE: LE01093023 http://en.herbariumle.ru/?t=occ&id=43978) .

Figures

FIGURE 7. Begonia wenshanensis. A. Habit. B, C. Staminate flower, front and back views. D, E. Pistillate flower at late anthesis, front and back views. F. Shoot with inflorescence. G. Leaf blade, abaxial surface.H. Part of inflorescence. I, J. Staminate flower, front and back views. Nuraliev 2235 (A–E) and Nuraliev 2726 (F–J). Photos and design by M. Nuraliev.