Cochinchine : Bien-hoa et Chaudoc, n° 425 [Tho'rel]; île 

 de Phu-quoc [Pierre]; Ha-tien, n° 807 \Godefroy\. — Siam : 

 Muong-pran, n° 288 [Pierre]. — Laos : Stung-treng, n° 21 12 

 [Thorel]. 



9. B. Kerrii Gagnep., sp. n. 



Frutex alte scandens, ramis sulcatis, molliter rufo-tomentosis. Folia 

 biloba, cordata, ovato-orbicularia, membranacea, supra ad nervos basi 

 puberula, subtus aureo-pilosa, pilis appressis, margine aureo-pilosula; 

 lobi 2, trianguli; nervi 1 1 - 1 3 , medio apice in mucronem dense pilosum 

 producto; trabeculis transversis sinuatis vel rectis curh nervis ultimis rete 

 densum effbrmantibus; petiolus basi apiceque tumidus, aureo vel fulvo- 

 tomentosus, limbo minor; stipula? deciduae. Inflorescentia corymbosa; 

 corymbi axillares,tomentosi,pedunculati, ad médium cirrosi, densi; cirris 

 circinatis, oppositis, fulvo-pilosis; pedicellis filiformibus, numerosis, 

 circa 20, sub apice bibracteolatis, fulvo-pilosulis; bracteœ subulatae, aureo- 

 pilosulce; bracteolae consimiles, minores, haud opposite; alabastrum ovoi- 

 deum vel obovatum, vix umbonatum, omnino pilosum. — Calycis tubus 

 teres, basi inpedicellum gradatim desinens; lobi 5, lanceolato-acuti, dorso 

 rufo-puberuli, pilis appressis, ad anthesim refracti, plus minusve coaliti. 

 Petala 5, subrequalia, alba, nervosa, dimidia parte unguiculata, dorso 

 albido-pilosa; lamina elliptica, apice emarginata, basi in unguem desinens, 

 margine conspicue corrugato-crenato. Stamina fertilia 3, exserta, filamento 

 pilosulo; anthera elliptica, rimis 2 dehiscens; st. sterilia 2-3, parva, anan- 

 thera. Germen sessile, dense aureo-pilosum; stylo supra médium glabro; 

 stigmate peltato. — Folia 9-13 cm. longa, 8-12 cm. lata, lobis 3-4 cm. 

 longis, petiolo 4-9 cm. longo. Inflorescentia tota i3 cm. longa, parte fertili 

 2-4 cm. longa; bracteis 5 mm. longis, pedicellis 25-35 mm. longis; ala- 

 bastro 7 mm. longo, 4 mm. lato. Calycis tubus 3 mm. longus. Petala 2 cm. 

 longa, 7-10 cm. lata. Stamina fertilia 2 cm. longa, anthera 3 mm. longa. 

 Ovarium 7,5 mm. longum; stylus 14 mm. longus; stigma i,5-2 mm. 

 latum. 



Siam : Doi-sootep, 840 m. ait.; grande liane ligneuse, à 

 fleurs blanches et anthères roses, dans la jungle verte près d'un 

 cours d'eau, n" 1740 [Ken*]. 



10. B. lakhonensis Gagnep., sp. n. 



Frutex scandens. Rami distichi, rufo-puberuli, virides, atro-maculati. 

 Folia cordata, biloba, supra subglabra, subtus rufo-villosa, lobis rotundatis; 

 petiolus gracilis. Inflorescentia corymbosa, rufa, pilis densis, basi denu- 

 data ; pedicelli atro-castanei, ad médium bibracteolati, bracteis bracteo- 



