А 169 — 
nuatum; flores pallide lutei. Calycis tubus in pedicellum gradatim atte- 
nuatus; sepala lanceolata, sub anthesim reflexa, plus minusve cohærentia; 
trinervia, dorso fulvo-pilosa. Petala 5, valde exserta, majuscula, ungue 
filiformi, centimetralia et ultra, pilosissima; lamina elliptica, abrupte ad 
. unguem constricta, utrinque pilosa, ad marginem corrugata. Stamina 
. fertilia 2, filamento dense ferrugineo-hirto, antheris ellipticis, dorso pilo- 
sis, rimis dehiscentibus; st. sterilia 7-8, glabra, duplo minora, antheris 
imperfectis vel obsoletis. Germen hirsutum, stipitatum; stipes cum stylo 
pilosus; stigma parvum; ovula 7. Fructus... — Folia 7-10 cm. longa, 8-10 
lata, petiolo 4-7 cm. longo. Inflorescentia 7-13 cm. longa, 6-15 cm. lata, 
pedicellis usque 7 cm.longis, bracteis8-ro mm. , bracteolis 6-7; mm. longis, 
alabastro 8-9 mm. longo. Petala 2 cm. et ultra longa, ungue 1 cm. circiter 
longo. Stamina fertilia 15-18 mm. alta. 
Laos : Attopeu, mars 1877, n° 1540 [Harmand]. Cochin- 
chine : Phu-quoc, janvier 1874, n° 1300 [Pierre]. 
3. В. Вопи Gagnep., sp. n. 
Scandens. Rami graciles, lævissimi, glaberrimi, cirris gracilibus, parce 
pilosis, pilis appressis. Folia triangula vel ovato-orbicularia, basi truncata 
vel pæne cordata, apice obtusa, pene vel haud emarginata, glaberrima, 
firma; nervi 7, tenues, secundarii ab ultimis vix distincti, cum iis rete 
tenue efformantes; petiolus gracilis, glaber. Inflorescentia racemosa, rufo- 
pilosa, pilis appressis; pedicelli inter se æquales, supra basim bibracteo- 
lati, bracteis et bracteolis lineari-acuminatis, sat persistentibus, alabastro 
elliptico (cum tubo) obtuso; floribus albidis. Calycis tubus brevis, turbi- 
natus; sepala ovato-acuta, dorso pilosa, pilis parcis appressis, intus gla- 
bra. Petala dorso pilosa, ad tertium unguiculata; lamina elliptica. Sta- _ 
mina fertilia 3, vix exserta, filamento glabro; anthera elliptica vel oblonga, 
rimis 2 dehiscens. Germen subsessile, basi et margine pilosum, stylo sub- 
glabro,stigmate obtuso, vix capitato. Fructus...— Folia 35-70 mm. longa, 
30-55 mm. lata, petiolo 15 mm. longo. Inflorescentia 5-10 cm. longa, 
2 cm. lata, pedicellis 5 mm. longis, 2-5 mm. remotis, alabastro (cum ` 
tubo) 5 mm. longo. Calycis tubus. 1,5 mm. longus; sepala 3 mm. longa. 
Petala (in alabastro) 2,5-3 mm. longa. Germen жой morer cum agio ` de 
5 mm. ss 
Tonkin : Kien-khé, r в” 2336, 2751; Vosa, п”. - 2822. ет x 2830 
[Bon]. 
4. B. calycina Рен. ms, sp- n. 
` Rami io vix ile cirris t pilosis. ка ovato-cordata, int 
apice acuminata vel E те qae mac ZE nitida ; ri 
