Van Alderwerelt van Rosenburqh: Malayan Araceae 3. 321 



Aglaonema novoguineensis, Enql., iii Pflzrch., LXIV (IV, 23 De) 

 13, fig. 3. 



The spécimen cultivated in the Buitenzorg Gardens, determined by 

 Engler, is distinguished in having the pétiole 25 — 30 cm. long, sheathing 

 1/2 — 3/^ its length, terete beyond the sheath, gradually canaliculate towards 

 the apex; lamina oblong, with a tendency to become subovate to subobo- 

 vate, 30—37 X 12 — 16 cm., the base and apex bluntto very broadly rounded. 



A plant from Ternate (Castela, open place in village, ait. 2 m., 

 V. M. A. BEGUIN No. 1175, 23 November 1920), which may be this 

 species, has the pétiole longer-sheathing, the spathe pale-green, the spadix 

 when young pale-yellow, afterwards yellow, with the apex reaching nearly 

 the apex of the spathe. 



Àglaoncma oblongifolium (RXB.), Knth, Enum., 111, 55; EnGL., in 

 Pflzrch., LXIV (IV, 23 Da), 13, fig. 4.^ A. nifidiim,KuJY\,\.Q.,lb.— Calla 

 oblongifolia, RXB., Flor. Ind., 111, 516. 



This species is unknown to me. Plants up till now cultivated in the 

 Buitenzorg Gardens under the names of A. oblongifolium and A. iiitidiirn, 

 determined by EnGLER, are distinguished as follows: Leaves with the 

 pétiole 10—15 cm. long, terete beyond the sheath, somewhat canaliculate 

 towards the apex (not narrowly grooved, ENGL., l.c, fig. 4 c-c'), the sheath 

 7 — 12 cm. long, with the margin finally scariose; lamina when fresh 

 coriaceous, to 37'/2 X 12'/2 cm., slightly unqual-sided, the base more or 

 less rotundate-cuneate, rather suddenly, shortly decurrent, the apex acuminate, 

 with a rather long, cylindrical, fragile apiculum, veins when dry prominent 

 on both sides but more distinctly on the lower side. Peduncle shorter, 

 pale-green. Spathe when young convolute, 4 — 7'/2 cm. long, 1— 2cm.diam., 

 when fully developed boat-shaped, + 2'/2 cm. broad, pale-yellowish-green, 

 nearly white. Spadix nearly as long as the spathe or a little longer, on a 

 stalk to '/2 cm. long; féminine inflorescence + "^U — ^ cm. long, oblique; 

 ovaries shortly ovate, whitish; stigma broad, slightly impressed in the 

 middle; masculine inflorescence + 4—5 times as long as the féminine, 

 with the 1—2 lower rows of stamens stérile, nearly resembling in shape 

 the fertile ones which are pale-ochraceous or pale-rosy when very young. 

 For the rest like the diagnosis given by ENGLER, except that one of the 

 spécimens, fruiting March 1921, has the berries white whilst ENGLER says 

 „Baccae ....... purpureae". 



Aglaonema marantifoliuin, BL., in Rumph , I, 153, tab. LXVI ; Engl., 

 in Pflzrch., LXIV (IV, 23 Dr), 27, fig. 10 A - F. 



in the description of this species ENGLER says „lamina supra atroviridis, 

 ad nervorum latera pallide nebuloso-maculata", but in his key he writes 

 ,,Foliorum lamina immaculata" and in his figure there are no spots to be 

 seen. Blume, in his original diagnosis, does not at ail speak of spots and 



