192 Bulletin Jard. Bot. Buitenz org, Vol. IV. Livr. l. 



Var. sumatrana: Dimensiones omnes minores; foliorum petiolus 

 22'/2— 27'/2 cm. longus, usque ad 1/2 longitudinis vel ultra vaginatus; lamina 

 12—20X6 — 12 cm.; venae primariae 7— 9 utrinque; pedunculi T'/a — 10 cm. 

 longi; spatha quam spadix paullo longior vel paullo brevior et angustior; 

 staminodia apice crasse capitato-clavata. 



The colour of the spathe is not mentioned on the field label but it is 

 (according to the collector's information) probably green. — In forest; ait. 

 600 — 1000 m. 



Sumatra (H. A. B. BuNNEMEljER, Ophir, TaLoe No. 129, 10Aprill917 

 Loeboeq Sikaping, Boeklt Kaboeng No. 1220, 22 June 1917). 



Philodendron gloriosum, ANDRÉ, in 111. Hort., 194, tab. 262; EngL. 

 & KRAUSE, in Pflzrch, LV (IV, 23 Db), Arac.-Philod.-Phil., 104. 



Plants cultivated in the Buitenzorg and Tjibodas Gardens under the 

 name of Ph. gloriosum André and P/z. //7Z/;^/'/fl/é'SCHOTT are quite indentic; 

 they hâve the caudex and leaves agreeing very well with the incomplète 

 diagnosis of this species given by Engler and Krause. Spécimens of 

 both gardens, having flowered August 1920, prove that this species belongs 

 to the section Polyspermium and are distinguished as follows: Caudex 

 relatively short-creeping, with the internodes subsemiterete, i. e. rounded 

 on the lower side, nearly flattened (slightly convex) and subacutely 

 2-marginate on the upper side, 3 — 6 cm. long, l'/2— 3 cm. thick, green, 

 with the cataphylla red or rosy when young, not keeled. Leaves with the 

 pétiole 20—80 cm. long, subterete in the lower part, subsemiterete and 

 acutely 2-marginate in the upper part, when young pale-green, reddish at 

 the apex, at length dark-green, provided with very copions fine, short, inter- 

 rupted, slightly elevated, longitudinal, pale-green (nearly white) stripes; lamina 

 firm-herbaceous, cordate-ovate, 15 — 50 X 12'/2— 35 cm., narrowly red- or 

 rosy-margined, the upper surface when young emerald-green, at length 

 saturate-green, opaque-velutinous, copiously pale-punctulate especially along 

 the reddish marginal stripe, the under surface when young pale-rosy-green, 

 at length emerald-green, the antical lobe subdeltoid, to 35 X 35 cm., narrowed 

 from the base with an extrorsely curved line towards the very shortly 

 acuminate apex, the postical lobes subsemiorbicular or subsemireniform, to 

 15 X 17'/2 cm., with the inner edges whether or not slightly imbricating, 

 separated at the base by an acute sinus; costa and primary veins above 

 when young pale-rosy, at length pale-green, with numerous much paler, 

 very short, longitudinal stripes, beneath very prominent, when young rosy, at 

 length olive-green; primary veins 6 — 10 on a side, upcurved towards the apex, 

 the costal ones spreading, the basai ones radiating, shortly connected and 

 not or hardly denudate at the base; secondary, tertiary and quaternary 

 veins oblique to the primary ones, much finer, rather dark, when 

 young rosy, at length green. Peduncle terete, + 17 '/2 cm long, 1 — 1 '/2 

 cm. thick, green or red-green, provided with many elevated, relatively 



