NEW OR NOTEWORTHY MALAYÀN ARACEAE 3 



by 

 Capt. C. R. W. K. VAN Alderwerelt van Rosenburqh. 



With plate 16. 



Wherever the contrary has not been mentioned the following diagnoses 

 were niade after dried material and descriptions of the colours were taken 

 from the field notes of the coUectors. 



The diagnoses of the new species froni New Guinea, as far as col- 

 lected by Dr. H. J. Lam, are provisory only; more detailed descriptions 

 will be published elsewhere. 



Aglaonema minus, HK. F., Flor. Brit. !., VI, 530; Engl., in Pflzrch., LXIV 

 (IV, 23 De), 32. 



A spécimen from Singapore. (Swamp ^Garden Road, coll. . . .), 

 determined by RiDLEY, is distinguished in having the spadix clavate, on a 

 stalk hardly '/2 cm. long. 



A plant from Bornéo (Soengei Bloe-oe, NlEUWENHUlS No. 673), 

 referred by Engler to this species but previously called by him A. Nieiiwen- 

 /iiiisii, is undoLibtedly not this species ; it is distinguished in having the pétioles 

 longer, much longer-sheathed, even to more than half its length, and the 

 lamina proportionally shorther and broader with a broadly rotundate-cuneate 

 or rounded base, a suddenly shortly acuminate apex and more numerous 

 primary veins. 



Aglaonema Nieuwenhuisii, EnGL., MS. in Herb. Bog. — A. minus, 

 HK. F., Engl., Pflzrch., LXIV (IV, 23 De), 32, p. p. 



Caudiculus internodiis + '/2 cm. longis, apice foliatus. Foliorum petiolus 

 5—6 cm. longus, vagina 2'/2— S'/^ cm. longa instructus; larnina in sicco 

 tenuis, late oblonga, 9—12 X 4'/2-6 cm., medio latissima, basi late 

 rotundato-cuneata vel rotundata, apice abrupte acuminata ; venae primariae 

 + 9 utrinque, conspicue arcuato-ascendentes, supra + insculptae, subtus 

 prominentes. Pedunculus fructifer + 7 cm. longus. Spatha . . . Spadix . . . 



The berries of the spécimen on hand are rather oblong, but it is not 

 to be seen whether they are ripe or not. 



Bornéo: Soengei Bloe-oe. (NlEUWENHUlS No. 673). 



