Amydrium, Spathiphyllum. 119 



Ghron. (1878) 750, 783. — Hydnostachyon Liebmann in Act. Soc. Havn. (1849/50) 

 24. — Massowia C. Koch in Bot. Zeitung X. (1852) 277, in Bonplandia IV. (1856) 

 \\ et in Allgem. Gartenzeitung (1857) 173; Garden. Chron. (1879) 268, 269. — 

 Spathiphyllopsis Teysm. et Binnend. in Ind. Sem. Hort. Lugd. Batav. (1863) Epimetr. 

 2. — Ämomophyllum Engl, in Gard. Chron. (1877) 139. 



Flores hermaphroditi perigoniati 3-meri, rarius 2- vel 4-meri. Tepala apice for- 

 nicata, fornice quasi truncato, cohaerentia aut in cyathum truncatum connata. Stamina 

 tot quot tepala, iis opposita; filamenta brevia apicem versus dilatata et incrassata, 

 antice plana, postice gibbosa, apice abrupte in connectivum tenue angustata; antherae 

 ovoideae, thecis oblongis, connectivum superantibus, loculis suboppositis, extrorsum 

 versis, rima longitudinali vix ad basin extensa dehiscentibus. Ovarium oblongum 3- 

 rarius 2 vel 4-locuJare; ovula in loculis 8 — 6 — 4 — 2 coUateralia vel superposita, anatropa, 

 micropyle fundum spectantia, funiculo brevi erecto axi affixa. Stilus cum ovario con- 

 tinuus, conice elongatus, crassiusculus, ultra perigonii phylla longe exsertus aut fere 

 omnino deficiens; stigma 3 — 4-lobum, sessile. Fructus baccatus, vertice rotundatus 

 vel conice attenuatus, 3-locularis, loculis 1 — 8-spermis. Semen oblongum curvulum, 

 =b reniforme pallide flavum, micropylen versus attenuatum, funiculo brevi minute ver- 

 rucoso, rhaphe laterali crasse prominula, testa sparse striato-verrucosa, sicca foveoUs 

 longitudinaliter dispositis instructa. Embryo axilis leviter curvatus, anguste cylindricus 

 in albumine copioso. — Herbae acaules vel brevicaules Americae tropicae centralis 

 atque meridionalis, una Monsuniae orientalis. Foliorum petioli equitantes, longi, apice 

 saepissime geniculo tereti subincrassato instructi, ad medium usque vel ultra medium 

 vaginati, lamina oblonga, cuspidato-acuminata, costa valida, nervis lateralibus I. atque II. 

 iisdem subparalleHs approximatis adscendentibus vel patentibus, prope marginem arcua- 

 tim exeuntibus. Pedunculus foliis subaequilongus vel longior. Spatha cuspidata, in 

 pedunculo plus minusve decurrens, membranacea, primum convoluta, demum ad basin 

 usque explanata, vegeto-persistens. Spadix sessilis vel stipitatus, cylindroideus, erectus, 

 spatha brevior, densi- et multiflorus, sursum florens. 



Ramificationis Schema: 

 N, L, L, L, L, S 



I 



N, N, L, L, S 



I 



N, L, L . . . 



Conspectus sectionum et clavis specieruni. 



Perigonii tepala 6 — 8, biseriata, libera, interdum conglu- 

 tinata, nunquam connata, Stamina 6 — 8, rarius 4 vel 5. 

 Ovarium 3 — 4-loculare, oblongum, stilo pyramidah, plus mi- 

 nusve exserto coronatum Sect. I. Eu spathiphyllum Engl. 



A. Stilus ovarii dimidium vel totum aequans ultra perigonium 

 longe exsertus. 



a. Ovarii loculi 8 — 6 — 4-ovulati ovuhs biseriatis vel super- 

 positis. Foliorum lamina margine demum haud crispulo- 

 undulata. 

 a. Lamina late oblonga, basi rotundata vel subcordata; 



spatha ovata vel oblongo-ovata \. S.cochlmnspathum, 



ß. Lamina obovato-oblonga, basin versus sensim an- 

 gustata; spatha late obovato-oblonga ^. S. Wendlmidii. 



y. Lamina oblongo-lanceolata, basin versus angustata; 



spatha elliptica vel obovato-lanceolata 3. Ä Friedrichsthalii. 



