Van Alderwerelt van Rosenbu rgh: Malayan Araceae 2. 183 



Resembles at first sight H. latifrons Engl. 



Java {Rembang, Ngawen, in swampy places, J. BeumÉE No. 816, 

 May 1917; Semarang, Manggar, J. BeumÉE No. 5045, 3 March 1920). 



Homalomena habokoana, V. A. V. R. 



Euh omalo mena. — Herba majuscula, caudiculo + 12'/2 cm. alto, 1 cm, 

 crasso. Foliorum petiolus quam lamina longior, I2V2— 22'/2 cm. longus, 

 antice leviter canaliculatus, '/4 parte basali vagiiiatus; vagina coriacea, per- 

 sistens; lamina in vivo coriacea, subcordato-triangularis, 12 — 16X^0 — ^4 

 cm., supra obscure, subtus pallide viridis ; lobus anticus rotundato-triangularis, 

 apicem breviter acuminatum versus linea excurva angustata; lobi postici 

 obtusissime triangulares, sinu latissime et obtusissime triangulari separati, 

 '/g—'/? longitudinis lobi antici metientes, apice late rotundati; venae pri- 

 mariae + 8—9 utrinque, subtus prominentes, venis secundariis paullo prom- 

 inentibus et venis tertiariis gracillimis absconditisque interpositis, basales 

 plus minus horizontales vel paullo reversae, apicem versus sursum curvae, 

 costales sensim ascendentes. Pedunculus 3-5 cm. longus, roseo-brunneus 

 vel viridi-brunnescens, demum viridescens, longitudinaliter rugulosus. Spatha 

 cylindracea, S'/o— 4 cm. longa, ^/4— 1 cm. ampla, primum brunnea vel 

 pallide rubro-brunnea, postremo viridescens, brunneo-afflata, basi et apice 



attenuata, apice cuspidato-acuminata. Spadix 

 stipite 1 '/2- 21/2 mrn- longo suffultus, 2'/2— 3V4 cm. 

 longus; inflorescentia feminea cylindracea, "^{^ — 

 1 cm. longa, 72—^/4 cm. crassa; ovaria conoideo- 

 ovoidea, pallide viridia; stigma parvum, discoi- 

 deum, rotundum; staminodia quam ovaria vix vel 

 paullo breviora, dimidia parte inferiorefiliformia, 

 dimidia parte superiore clavata, albida (fig. o); 

 inflorescentia mascula conoideo-cylindracea, quam 

 feminea 2— 2'/2-plo longior, pallide flavida, subalbida, 

 obtusiuscula; flores masculi 3-4-andri; antherae con- 

 nectivo thecas non occultante (fig. o'). 



Resembles at first sight H. latifrons Engl. The 

 description is taken ,from a living plant cultivated in 

 the Buitenzorg Gardens, flowering February 1920). 



Sumatra {Dell, Haboko, in forest, W. DOCTERS 

 VAN Leeuwen). 



Fisf. o. 



Fig. o'. 



Homalomena javanica, V A. V. R. 



Eu/iomalomena. ~ Planta, majuscula, caudice usque + 15 cm. alto, 

 IV2 cm. crasso. Foliorum petiolus ± 40—60 cm. longus, '/j parte basali 

 vaginatus; lamina ovato- vel subsagittato-cordata, + 20-40X12—24 cm.; 

 lobus anticus triangularis, ± 16- 26 cm. longus, a basi linea extrorsum curvata 

 apicem acute acuminatum, breviter cuspidato-apiculatum versus angustatus; lobi 



