Tab. 5507. 

 ARISiEMA Wightii. 



Dr. Wight's Arisania. 



Nat. Orel. AkoidevE. — Moncbcia Monandria. 

 Gen. Char. (Vide supra, Tab. 5496.) 



AuiSiEMA Wightii; tubere rotundato superne fibroso, scapo solitario uni-bifo- 

 liato, infra petiolis vaginisque maculatis, foliolis quinque-foliolatis, foliolis 

 radiatis elliptico-lanceohitis cuspidato-acuminatis, basi in petiolulis brevibus 

 attenuatis, spatha pallide viridi inferne cylindraceo-tubulosa striata, ore vix 

 contracto, superne ovato-lanceolata erecta acuminata concava apice acumi- 

 nata incurva tubi loDgitndine, spadice interne contracto floribus sparsia 

 infra fcemineis reliquis masculis, appendice erecta flavo-viridi, e basi incras- 

 sata longissime subuluta omnino nuda. 



Aris^ema Wightii. Schott, in Bonpl. 1859, p. 26; et in Prodr. Syd. Aroid. 

 p. 43. 



Ahis^ma filiforme. Thw. En. PL Zeyl. p. 334 (C. P. 3118), vix Blume. 



This species of Arisama we have received from our friend Mr. 

 Thwaites as a native of the southern part of Ceylon, and he has, 

 in his valuable ' Enumeratio Plantarum Zeylanise,' recorded it as 

 the A. filiforme of Blume, in 'Ruraphia/ vol. 1. p. 102. t. 28,_ 

 but has justly observed, — " In my specimens, the five folioles ot 

 the leaf are radiate, not pedate, as Blume's figure represents 

 them, but in other respects the resemblance appears to be per- 

 fect." There is, however, a considerable difference in the colour- 

 ing in the spadix and spatha, and not a little in shape of the 

 latter, and our plant wants abortive flowers, which are found on 

 the lower portion of the appendage of the spadix. Mr. Thwaites 

 also refers with a mark of doubt to the Arismna eurvatttm, Kth. 

 {Arum curvatum, Roxb.) ; but this is, too, a pedate-leaved plant, 

 and different in the folioles, etc., of which 1 possess an authentic 

 figure. It is indeed clearly the very little known Ariscema Wightn 

 of Schott, in ' Bonplandia,' 1. c, and subsequently in his ' Pro- 

 dromus Systematis Aroidearum,' native of the Carnatic Malabar, 

 and extending to Ceylon. 



april 1st, 1865. 



