30 A.. Engler. — Araceae-Lasioideae. 



utrinque angustata, acuta, purpurea, dorso infra medium i-costata, crassiuscula, ab 

 ima basi aperta. Spadix quam spalba dimidio fere brevior, circ. 5 cm longus, 0,5 cm 

 crassus, stipite \ — 4,5 cm longo suffultus, basi dorso spathae adnatus. Tepala 4 — 6, 

 cuneata, apice truncata, 2 mm longa, imbricata. Stamina 4 — 6, i,5 mm longa. 

 Ovarium prismaticum, uniloculare, uniovulatum, stigma sessile^ pulvinare. Baccae ob- 

 ovoideae, ad 0,8 cm longae, 0,5 cm crassae. — Fig. H. 



Monsungebiet. Südwestmalayische Provinz: Perak: am Larut, unter < m 

 (King's Collector in Herb. Hort. Calcutta n. 53 2 4, 5499. — Blühend im Dezember- 

 Januar, Kunstler n. 3122. — Blühend im Juli); Wasserfall bei Taiping (Curtis, Wray 

 n. 4 842. — Blühend im Oktober. — Herb. Penang); im dichten Regenwald auf feuchten 

 Felsen von 500 — 600 m (Kunstler in Herb. Hort. Calcutta n. 4 837); Goenong Panti 

 (King's Collector in Herb. Hort. Calcutta n. 233); Pelan Tujoi (Wray n. 4 842 in 

 Herb. Mus. Perak); Briah (Wray n. 422 4 — Herb. Perak). — Borneo (Hort. Veitch — 

 Juli 4 880. — Herb. Hort. Calcutta, Herb. Kew). 



3 4. ürospatha Schott. 



Urospatha*) Schott Aroid. (4 853) 3. t. 7 — 4 0, Gen. Ar. (4 858) t. 86, Bonpl. V. 

 (1857) 4 28, Oest. Bot. Wochenbl. (1857) 253, 254, Prodr. (4 860) 406; Engl, in 

 Martius, Fl. Bras. III. 2. (4 878) 4 4 8, in DC. Monogr. Phaner. II. (4 879) 275, in Engl, 

 u. Prantl Pfizfam. 11. 3. (4 8 89) 4 24; Benth. et Hook f. Gen. (4 883) 996. — Arum 

 Rodsch. Bemerk. (4 796) 30. — Pothos Rudge PI. Guian. 24. (4 805) t. 34. — Spathi- 

 phyllum Schott Melet. I. (1832) 22, Kunth En. III. (4844) 83 pr. p. — Urophyllum 

 C. Koch in Otto et Dietrich, AUg. Gartenzeitg. XXY. (4 857) 4 73. 



Flores hermaphroditi, perigoniati. Perigonii tepala 4 — 5 — 6 fornicata, vertice sub- 

 truncata. Stamina 4 — 5 — 6; filamenta latiuscula, compressula, apice repentino in con- 

 nectivum tenue, acuminatum angustata, ovarium vix superantia; antherae connectivum 

 superantes, thecis ovato-ellipticis, vix apiculatis, extrorsum rima apicali dehiscentibus. 

 Pistillum truncato-conoideum, incomplete 2-loculare, septis oppositis a basi ad mediam 

 cavitatem connatis; ovuIa in loculamentis 2 vel plura funiculis longulis arrectis pla- 

 centae ex centro quasi exsertae affixa, anatropa, micropyle angusta fundum spectante. 

 Bacca perigonio aucto circumvallata, 2-locularis, loculamento altero saepe obliterato, 

 abortu 4 — 2-spermus. Semen funiculo brevi, erecto affixum, submeniscoideum, micro- 

 pylen versus attenuatum , testa crassula laevi , hilo majusculo. Embryo curvatus, 

 albumine inclusus. — Herbae paludosae Americae tropicae, imprimis Brasiliae atque 

 Guianae. Rhizoma horizontale vel perpendiculare, spongiosum. Folia basalia pauca sur- 

 recta, petiolis longissimis, basi tantum vaginantibus, laevibus vel scabride verrucosis, saepe 

 variegatis, lamina sagittata, costis apicem versus evanescentibus, nervis lateralibus I. 

 angulo plus minusve acuto adscendentibus, nervis II. inter nervös I. transversis atque 

 reticulatis. Pedunculus terminalis quam folia longior vel iisdem aequilongus. Spatha 

 erecta, extus plerumque colorata, intus albida, inferne convoluta, medio aperta, apicem 

 versus saepe longissime angustata, dz contorta, persistens. Spadix breviter stipitatus 

 vel sessilis, quam spatha multoties brevior, über, densiflorus, inferne flores steriles 

 reliquis minores at conformes, stamina haud supra tepala protrudentes gerens. 



Clavis specierum. 



A. Coßtae posticae in sinu haud denudatae. 



a. Folium lobus anticus latitudine sua 4 V2~P^o longior. 

 a. Laminae lobus anticus obtusus. Spatha quam spadix 



maturescens 3^2'?^^ longior \. U. Löfgreniana. 



ß. Laminae lobus anticus acutus. 



*) ovQtt cauda, anrcda spatha; ob spatham saepe praclongam angustatam. 



