Trichosanthes fissibracteata

De Wilde, Willem J. J. O. & Duyfjes, Brigitta E. E., 2012, Keys to and checklist of species of the genus Trichosanthes L. (Cucurbitaceae) in Indochina, Adansonia (3) 34 (2), pp. 265-278 : 271

6. Trichosanthes fissibracteata

C.Y.Cheng & C.H.Yueh ( Fig. 1 )

Acta Phytotaxonomica Sinica 12 (4): 438 (1974); S. K.Chen, Flora Yunnanica 6: 357 (1995); Huang & Jeffrey in Lu & Jeffrey, Flora of China, http://efloras. org: species no. 16 (2011) ; W. J. de Wilde, Duyfjes, Phonsena & R. W. Ham, Thai Forest Bulletin. Botany 39: 15 (2011). — Type: Hu Xue Ying 6002464 (holo-, Herb. Yunnan Prov., Medical Products Res. Institute, Yunnan, not seen) .

MATERIAL EXAMINED. — China. SW Guangxi; SE Yunnan, 1500 m, 22.VII.1982, male, Yu, Che & Wu, Quan- An 974 ( KUN) .

Laos. Col Barthélémy , 1000 m, male, Poilane 16778 ( P) .

Vietnam. Hanoi, Cuc Phuong National Park , fr., Cuong & Cuong 2076 ( HN) . — Tonkin , Phu Tho, IV.1823, male, Pételot 1084 ( P) . — Traibutt à Yên Bay , male, Lecomte & Finet 619 ( P) . — Annam , massif de Dong Ché, 400 m, 23. V.1924, male, Poilane 11304 ( P) . — Without locality (fide Jeffrey [1980a]), Pételot 1723 (not found in P) .

DISTRIBUTION. — SW Guangxi, SE Yunnan, Vietnam ( Tonkin).

REMARKS

Trichosanthes fissibracteata is characterised by a 20- 30 mm long linear probract, some conspicuous large glands towards the base of the leaf blade, and by the undersurface of the leaf blade drying light green or greyish (see Fig. 1 ).

During a quick visit to HN herbarium (Hanoi) in November 2011, the authors saw several recent collections of the present species, for instance collected in Cuc Phung National Park near Hanoi .

Figures

Fig. 1. — Trichosanthes fissibracteata C.Y.Cheng & C.H.Yueh: A, portion of shoot with male inflorescences; B, upper leaf surface with rough cystoliths; C, ditto from a different specimen; D, fruit; E, seed; A, B, Yu, Che & Wu, Quan-An 974 (KUN); C, Poilane 11304 (P); D, E, Cuong & Cuong 2076 (HN). Scale bars: A, D, 2 cm; B, C, 1 mm, E, 3 mm.