Tab. 5496. 



ARIS^EMA papillosum. 



Papillose Arisema. 



Nat. Ord. Akoide^:. — Moniecia Monandria. 



Gen. Char. Spatha basi convoluta, limbo fornicato v. planiusculo. Spadix in- 

 ferne unisexualis, superne genitalibus rudimentariis interdum plane deficientibus 

 auetus, apice exserto vel incluso nudus. Jnthera in filamentis distinctis verti- 

 cillatae, loculis discretis vel appositis, poro vel rima subtransversali dehiscentibus. 

 Ovaria plurima, libera. Ovula 2-6, rariusve plura, in funiculis brevibus e pla- 

 centa basilari recta, orthotropa. Stylus brevis v. subnullus; stigma capitato- 

 peltatum v. depresso-hemisphsericum. Baccee mono-oligospermae. Semina sub- 

 globosa, testa coriacea v. membranacea, umbilico basilari lato. Embryo in axi 

 albuminis, antitropus, extremitate caudiculari umbilico e diametro opposita. — 

 Plantar perennes, in Asia tropica montibus, deinde in Asia extratropica orientali, 

 et in America boreali indigence, rhizomate tuberoso, acaules v. foliorum petiolis basi 

 vaginantibus cum scapo centrali concretis caulescentes ; lamina rarissime indivisa, 

 nunc peltatisecta, nunc pedati- v. palmatipartita ; segmentis sessilikis v. stipitatis, 

 integerrimis v. rarius eroso-serratis, subreticulato-venosis. Endl. 



Ak.ts.ema papillosum ; tubere rotundato superne radiculoso, scapo solitario uni- 

 foliato vaginato, petiolo maculato, folio pedatipartito, laciniis 7-9 lanceo- 

 latis anguste acuminatis, spatha albo-vittata inferne subcylindracea, superne 

 ovata cucullata longe acuminata stricta, spadice subincluso apice clavato 

 nudo, inferne omnino antherifero, pistillis deficientibus papillasformibus. 



Aris.ema papillosum. Schott. Steudel in Schott, Prodr, Syst. Aroid. p. 46. 

 Thw. Enum. PI. Ceyl. p. 335. 



Arisema erubescens. Schott. Melet. v. 1. p. 17 ? et in Prodr. Syst. Aroid. 

 p. 53? 



When we described our Ariscema Murrayi, at Tab. 4388 of 

 this work, we noticed that Blume, in his ' Rumphia,' had re- 

 corded thirty-one species, mostly of Asiatic origin. Schott, in 

 his more recent 'Prodromus Systematis Aroidearum,' has in- 

 creased the list to eighty-one, including certain doubtful species. 

 The one here represented is a native of the Nilgherries, and 

 it has lately been found by Thwaites in Ceylon, whence the 

 tubers were kindly communicated to us. It is described as 

 there inhabiting the Central Province of the island, at an eleva- 

 tion of 4000-6000 feet. The large tuberous roots are used as 



FEBRUARY 1ST, 1865. 



