Van Alderwerelt van RosenbuRGH : Malayan Araceae 3. 337 



Pothos papuanus, Becc, Mal., I, 261, tab. XVI, fig. 5—7; EnGL., in 

 Pflzrch., XXI (IV, 23 5), Arac.-Potoid., 34. 



H. J. Lam's No. 955 from Prauwen Bivak, in forest, ait. 80 m., 

 29 August 1920, which is very probably this species, is distinguished as 

 follows: Internodes.to + 2 cm. long. Leaves with the pétiole to 5 X 1 cm., 

 the lamina to l'I^—M'I. X 2'/2— 4 cm. Peduncle lo l'I^ cm., long, dark- 

 purple, as are the bracts, when dry dark-brown. Spathe to 2'/2 cm. long, 

 dark-purple, greeiiish, when dry pale-brown. Spadix to 2^U cm. long, 

 yellow, when dry fuscous. 



Pothos cuspidatus, V. A. V. R. 



ALLopoflios, Longevaginati. — Internodia superiora ramulorum florife- 

 rorum ^U—\ cm. longa, 1 mm. crassa. Foliorum petiolus l'/a— 2'/2 cm. 

 longus, longissime angusteque vaginatus; lamina flaccido-coriacea vel -char- 

 tacea, ellrptico-lanceolata, ± T'/o — H'/. X l'/2— 4 cm., apice in foliis latio- 

 ribus abrupte, in foliis angustioribus + sensim et longe angusteque subulato- 

 cuspidata, basi in foliis latioribus obtusa, in foliis angustioribus + acute 

 cuneata; venae collectivae 2 utrinque, marginem laminae approximatae. 

 Pedunculus gracilis, ± 1 cm. longus. Spatha e basi ovata subulato-lanceolata, 

 21/2—3 cm. longa, 4—5 mm. lata. Spadix sessilis, oblongus, florifer ^/j—l cm. 

 longus, 2'/2— 3 mm. crassus, obtusus; baccae elongato-obovoideae, 1 — 1 '/4 cm. 

 longae, '/2 cm. crassae. 



New Guinea: northern slope of mountain ridge near Doorman 

 Summit, ait. 1420 mm. (H. J. Lam No. 1566, 8 August, 1920). 



Pothos ovatifolius, ENGL., in Pflzrch., XXI (IV, 23 B), Arac- 

 Pothoid., 40. 



Var. simalurcnsis : Internodia 6 — 10 cm. longa. Foliorum petiolus 

 quam lamina duplo ad triplo brevior, usque 10 cm. longus; lamina late 

 ovata, 9—23 X 9—13 cm., inaequilatera, cuspida gracillima 5—10 mm. 

 longa instructa, basi cordato-emarginata, interdum late rotundata, venis 

 collectivis 5—7 utrinque. Pedunculus postremo usque 10 cm. longus. Spatha 

 lineari-oblonga, cuspide inclusa 14 cm. longa, 4 cm. lata, basi rotundato- 

 cuneata, apice obtusa, abrupte gracillime cuspidata, cuspide 2 cm. longa. 

 Spadix stipite + l'/2 cm. longo suffultus, 8—12 cm. longus; baccae 

 ovoideae vel conoideo-ovoideae, ^/j— 1'/2 cm. longae, ^/4— 1 cm. crassae, 

 virides et rubrae. — Perhaps a distinct species intermediate between P, ovati- 

 folius Engl. and P. Riimpliii SCHOTT. 



Island Simaloer (near north-west coast of Sumatra): Tapoh, 

 Dèfajan, to 15 m. high scandent in swampy forest (ACHMAD No. 1683» 

 12 February 1920). 



Raphidophora novo-guinecnsis, ENGL., in SCHUM., Flor. Kais. Wilh- 

 1., 19; Pflzrch., XXXVll (IV, 23 B), Arac.-Monstr., 20, fig. 3. 



