ACAKTHACEiE. 473 



Stamina «epids duo antherifera, modo 4 didynama, 

 brevioribus quandoque etfcetis. Antherce v. bilocu- 

 lares, locuHs insertione inaequalibus aequahbusve ; v. 

 uniJoculares ; rongitudinaliter debjscentes. 

 Ovarrum disco gfandufosq basi cinctum, bitoculare, lo- 

 culis 2-polyspermis. Stylus 1 . Stigma bilobum, 

 raro indivisum. 

 Capsula bilocularis, loculis 2-polyspermis, abortione 

 quandoque monospermis, elastice bivalvis. Ljisse- 

 pimentum contrarium, per axin (medio quarudoque 

 apertam) biparttbile, segmentis valvulis adnatis 

 roodo ab iisdem elastice dissihenUbtis, integris v. 

 raro sponte hipart-ibihbus $ margine witeiiore semi- 

 ttiferis, , 

 Semina processubus subulatis adscendeitfibos dissepi- 

 menti Dlerumque subtensa, subrotunda: Testahxa. 

 Albumen nullum. 

 Embryo curvatus v. rectus. Cotyledones magns, sub- 

 orbiculatas : Radicula teres, descendens e't simul 

 centripeta, curvata v. reeta. JHmrmla inponspicua. 

 Uerlce v. Fruticts intratropicos praecipue provenientes ; 

 pube dum adsit simplici, nunc capitata rarissime 

 stellata. Folia opposita, rard quatema, exstipu- 

 )ata, simplicia, indivisa, integra v. serrata ; raro 

 sinuata v. snblobata. Inflorescentia.. terminalis v. 

 axillaris, spicata, racemosa, fasciculata, panicu- 

 lala v. solitaria. Flores in Spicis saepius oppositi, 

 nuric aherni, tribracteati, bracteis lateralibus rar6 

 deficientibus, quandoque magnis foliaceis calycem 

 nanum intcrduni obsoletum includeutrbus. 

 Obs. I. Ordo certe naturalis, Daud tarnen faciie circum- 

 scribendus. Rejjttycula peculiaria seminum in pJerisque 

 obf ia, in nonuullis desuut. Aibuminis defectus constans 

 nota est, sea communis Bignoniis conterminis. Placentatio 

 seminum semper in axi dissepimenti margtnibusve interio- 

 ribus ejusdem segmentorum. KadicuJa descendeuB et cen- 

 tripeta. Dissepimenti contrarii partitio in omnibus praeter 

 Thunbergiam obtinet. Sfaminis quinti rudimentum in 

 ©rdine haud infrequens. Eiastica dehjseeatia capsul* fere 

 «niversali^. 



Ob». II. Ex analysi speciertTm fere omnium Herbaru ditis- 



simi Banksiani, characteres generici exceptionibus vix ob- 



3 p noxii 



