igg Aroideae Jss. 



nantes, margine vaglnanti candido folium superius totum et 

 ij^sum petiolum semi-involventi, herbaceo, sat tenero, ad api- 

 cem petioli vaginam formanti, mox autem ab apice basin ver- 

 sus emarcido, in fibras apice tenerrimas desoluto et inde pe- 

 tioli semiteretes canaliculati, reti fibrarum basi cincti ; juveni- 

 les pilis urentibus nodosis hamulatis et ramosis intricatis 

 sublanati, dein glabrati, 10 — 18 poll. longi, diametro trans- 

 versali baseos fere 1,0 poll., apice 0,5 polL, ibique complanato- 

 teretes geniculati, in ramulis ultimis pendulis petioli eadem 

 conformatione, sed minores 2,0 — 4,0 poll. longi ; vagina apice 

 acuta, sublingulata , albida, pauUo longius persistens , dein 

 plane tota emarcida, evanida, fibris paucis tantum remanen- 

 tibus ; pefioli primo erecti, dein patentissimi ; folia in praefo- 

 liatione involuta, dein e petioii vagina soluta, rectum angulum 

 extrorsum cum petiolo (tum erecto) formantia, patentia, dein 

 in eadem cum petiolo planitie (petiolo patente), patentia, po- 

 stremo in petiolo patentissimo angidum subrectum introrsum 

 formantia erecto-patentia, sat firma; in ramulis pendulis ple- 

 rumque integerrima, ovata s. ovato - oblonga, acuta, summa 

 cordata, acuminata, 4,5 — 6,0 poH. longa, petiolo plus duplo 

 longiora, 3,5 poU. lata, laete viridia utrinque lucida, reliqua 

 plerumque basi obtusa, rarius subcordata, 7 — 12 poll. longa, 

 4 — 8 poll. lata, opaca, supra atro-viridia, subtus pallidiora, 

 parallele nervosa, nervis ad marginem percurrentibus ; ramo- 

 rum pendulorum infima saepe foraminibus parvis aut majus- 

 culis linearibus aut subfalcatis pertusa, nunc his ad mar- 

 ginem percurrentibus eumque rumpentibus fissura 1 — 2 

 in latere unico aut utroque praedita et inde subpinnatifida, 

 sinu acuto subfalcato, nervum medium haud attingente ; folia 

 caulis aut ramorum primordialium magna, circumferentia 

 ovata s. ovato-oblonga, basi leviter cordata, acuta, 12 — 24 

 poll. longa, 10 — 20 poU. lata; juniora viridia, seniora opaca, 

 supra atro-viridia, subtus palhdiora; inferiora subintegra aut 

 uno latere integra, altero fissuris 1 — 4 uTCgulariter pinnati- 

 fida, superiora fissuris magis regularibus in utroque foHi la- 

 tcre, subpinnatifida ; summa fere regulariter pinnatifida ; si^ius 



