46 
XANTHOSOMA shox. 
(Melet. I. p. 19. 1832.) 
Sp athae tubus ovoideus, firmus, convolutus, vegeto- persistens; faux constricta; lamina erecta, 
apice saepe reflexa, cymbiliforme oblonga, (virens albens, violascens). 
Spadix androgynus, erectus, spatha brevior; spica feminea conice-cylindrica, multiflora, 
densa, sessilis; mascula, a feminea interjecta parte neutra utrimque contigua, conica, 
ovaria inferne excedente, faucem spathae superante, remota, subcylindrice clavata, multi- 
flora, densa; appendix nulla; rhachis forma spadicis partium. 
Floseuli nudi; masculi: synandria truncate-obpyramidata, vertice irregulariter sinuose 
hexagona; connectivum crassum, vertice planiusculum; loculis 8— 10— 12, appositis, 
antherarum 4—5— 6, ad basin synandrii usque perducti et ibi attenuate-obtusati, verticem 
synandrii non attigentes, sed sub illo rimula brevi aperientes et pollen e rimis contractorum 
synandriorum in farciminulis emittentes; feminei: ovaria 3—4-locularia, omnia apice 
parte-stylina incrassata, brevi, connata; stigmata discoidea, tri-quadri-loba, minora vel 
majora, distantia vel approximata, flavo-glutinosa; placentae secus axim annexae, pluri- 
- 
ovulatae, lineares; funiculi longuli, varie directi, aperte patentes; ovula irregulariter 
coordinata, promiscue verticali vel transversali directione in quolibet loculamento, 
anatropa; micropyle fundum vel parietem versus spectans; neutri: obpyramidati 
compressuli, vertice truncati synandriis fere conformes, saepe colorati. 
Frucius. .. 
NMÉER. ls 
Habitus. Herbae lactantes rhizomate caudiciformi interdum elato. Folia longe et crasse- 
petiolata, petiolo inferne vaginato, apicem versus tereti, viridi vel colorato, glabro vel 
piligero; lamina sagittata, costis posticis basi in sinu petiolari latere exteriore ut 
plurimum denudatis, venis supra in sulcos immersis, venulis crassiusculis venarum 
