w 



migtiem gTAcilom acqnante. Stamina inaequalia, iilamentw 

 teiwihns, antheris parvnlis. Orarinra emu stylorutn parte in- 

 feriori pilis elongatis riifescentihns flexuosis villoso-birsutnuu 

 Samara glabrata, 14 — 16'" longa, 4'" lata, area toro ad- 

 fixa miimta subrotunda, concava, cristis oblique adscendenti- 

 lilts marline snbaequalibiis appendici alae snbeonformibus, ala 

 teiiiii cxtus rectilinea, inins parrnn conrexa. 



Guiana aiiglica: in savants flor. m.Jiuiio (Rich. Sehom- 

 burgle no. 594). 



6. B. platyptera Gr. foliis ellipticis tel elliptic© ~ oblon- 

 gis breviter ct abfnpte acuminaiis coriaceis glabris petiolatis, 

 petiolo brevi eglaudnloso , nmbellis 4floris sparsis, pedicelJis 

 liasi articulatis tribracteolalis > calyce 8-gIanduloso, petalis 

 aitratD - sericeis fimbriate - laceris , antheris atyliaqne glabris, 

 samarae maximae ntrinqne cristato-lobulatae ala spatlinlato- 

 oblonga intns ad basin appendicc subrotnnda oblnsa aueta. 



Samara accedit ad B. heterostytam , ceterum 2?. «r»- 

 grescenti Adr. Jugs. (B. fimbriatae Gr.), cujus fruetas 

 ignotus est, iia respond et, nt nomiisi petalis pnbe densa seri- 

 cea aurea obtectis tuto dignosci qneat, quo charaetere cum 

 B* lueida Rich, convenit: patria vero B. nigrescentis a 

 Venezuela valde remota Yerosimile est fore nt alia discrimina 

 e fritctu olim deriventur. 



Folia 3 — 4y 2 " longa, 1 — 2" lata, petiolo canalicular 

 3'" longo. Umbellae saepius oppositae iu ramulis abbrevia- 

 tis (sive pedimcnlis axillaribos) terminates* Floris diam. 8 — 

 10 w . Samara inter omnes maxima, 3" longa, 12 — 14"' 

 lata, glabra; carpellnm snbglobosum, 6 — 6"' diam,, latere 

 cristis 2 verticalitcr parallelis laceris iuaequalibiis auctum, 

 apice appendice alae 3"' alta superatum; ala extrorsum dila- 

 tata, intns i. e. margine craesiori rectilinea, apice obtnsata. 



22r fid. It Heft, 2 



