Fissistigma villosissimum sp. nov. sr. LAA 28 / /G3./7 42 
Frutex ut videtur scandens, ramulis et floribus et subtus foliis densissime 
molliter villosis: ramis teretibus, vetustioribus subatris, lenticellatis, glabris 
vel glabrescentibus, ramulis circiter 2 mm. diametro, densissime ferrugineo- 
vel subcinereo-villosis: foliis coriaceis, oblongis vel oblongo-ellipticis, 10-16 
cm. longis, 3.5-6 cm. latis; brevissime subabrupte acute acuminatis basi late 
rotundatis vel leviter cordatis, supra laevibus, olivaceis, subnitidis, glabris 
vel junioribus secus costam perspicue ferrugineo-pubescentibus, subtus 
densissime uniformiter villosis, pilis elongatis, subadpressis, ferrugineis vel 
badio-ferrugineis: nervis primariis utrinque circiter 20, supra gracilibus, 
haud impressis, subtus elevatis, perspicuis, rectis vel leviter curvatis, ad 
marginem distincte curvatis sed vix anastomosantibus; petiolo 6-10 mm. 
longo, densissime villoso vel vetustiori glabrescenti; floribus solitariis vel 
binis, in axillis superioribus, subsessilibus, circiter 2 cm. longis; sepalis 
liberis vel subliberis, oblongo-ovatis, crasse coriaceis, intus verruculosis, 
glabris, extus densissime badio-villosis, 10-12 mm. longis, deorsum 7 mm. 
latis, sursum angustatis, acutis; petalis crasse coriaceis, exterioribus oblongo- 
ovatis, 2 cm. longis, 1 cm. latis, sursum angustatis, obtusis, intus verruculo- 
sis, glabris vel sursum ad marginem cinereo-puberulis, extus densissime 
longe subadpresse subbadio-villosis, petalis interioribus oblongo-lanceolatis, 
1.5 cm. longis et 7 mm. latis, crassissime coriaceis, sursum angustatis, 
obtusis, extus in partibus medianis adpresse puberulis ceteroquin glabris, 
intus ad basim excavatis, verruculosis, sursum crassissimis, valvatis; sta- 
minibus numerosis, 2-2.4 mm. longis, plus minusve oblanceolatis, cellulis 
contiguis, connectivo ovoideo, acuto vel obtuso, 0.8-1 mm. longo, quam 
partibus celluliferis latioribus; carpellis circiter 20, cum stylis 3.5-4 mm. 
longis, ovario oblongo, densissime adpresse subferrugineo-villoso, pilis 1-2 
mm. longis; stylis glabris oblongis, crassis, 1.5 mm. longis, truncatis vel 
subtruncatis interdum minute denticulatis, stigmatibus haud distinctis, 
glabris; ovulis circiter 8, 2-seriatis. 
INbo-CHiNA, Tonkin, Thoi Nguyen Province, Phan Mé, Pételot 2683, Nov. 12, 1930. 
The alliance of this species is clearly with the Haïnan-Tonkin Fissistigma 
Maclurei Merr. (Melodorum Maclurei Ast) and F. villosum (Ast) comb. 
nov. (Melodorum villosum Ast in Lecomte, F1. Gén. Indo-Chine Suppl. L: 
110. 1938), the latter based on a single Poilane collection from Blao, 
Annam. It differs from the former notably in its sessile or nearly sessile 
flowers, more numerous primary nerves, longer petioles, and shortly acumi- 
nate, not obtuse leaves, and from the latter in its larger leaves, much more 
copious ferrugineous indumentum, and larger flowers, being apparently 
more closely allied to the latter than to the former. 
