76 



AROIDEAE. 



ARISAEMA Mart. — Schott. 

 1. ^risaema hrasilianum Blume Rumphia Tom.I. p.96. 

 Arum triphifllutn L. partim, 



Creseit Suriuami, ßenedeu-Comraewyne, id. Oct. absqiie 

 floribus. 



Specimina mea haod ad unguem quadrantia huc tarnen 

 rcferenda Tidcntar, nam folii segmenta forma paullo anga- 

 sliore abludeutla ad distinctiouem specificam statiieiidam eo 

 minus sufiiccre mihi videiitur, cum ejusmodi lusus in tote 

 hoc genere haud rari sint. Segmentum medium ellipticum, 

 basi aliqnid angiistatum, 25 cent. circiter longura, 9 latnm. 

 Lateralia parumper breviora angustlora inaequilatera, ex- 

 trorsum ad basiu lobo 7—3 cent. longo aucta, 



ACONTIAS Schott., Endl. 

 1. Acontias helleborifolius Schott, Melet, I, p, 19. ejc 

 Kunth. Enum, III. p, 45. Arum hellebor ifolium Jacq. 

 Icon. III, Tab. 613. 



Creseit in Hortis Paramariboensibns sponte, et passim 

 alibi in argillosis» 



Radix tuberosa subgloboso-placentiformis, superne pe- 

 tiolorum vagiuis subbulbiformis, folia 1 — 3 et scapam fere 

 simultanea exserens. Petiolus 50 cent. circiter longns, ver- 

 sus basin vaginans, et fusco-macnlatus, superne tenuis. JFo- 

 lium pedatum, circumscriptione subrotuudo-cordatum; fo- 

 liola plerumqne 10 — 11, medium maximam obovato-cu- 

 neato-lauceolalum, breviter acuminatura, sessile_, 18 cent. lou- 

 gum, 5 — plerumqne 6 — 6i/._j latum. Utriuquc ad ejus ba- 

 sin 5 foliola exeunt, comratiiii pedicello inserta, vel dis- 

 creta yel teuui membrana juxta pcdicelli latus supcrius de- 

 currente conncxa^ quorum interiora foliolo medio conformia 



