442 Flora of the Malayan Peninsula. 



This species comes very near to A. villosa, Blume, of the Malay Archipelago, but 

 we hesitate to join them, as there are important characters of difference, e. g., the 

 very villous inside of the corolla-tube in A. villosa. 



Species Imperfectly Known. 



7. Alstonia geandifolia, Miq. Fl. Ind. Bat. Suppl. 555 (1862). A 

 lofty tree; the branchlets very stout, sharply angled, transversely rugose. 

 Leaves chartaceous, in whorls of 4 to 6, those of each w^horl usually 

 more or less unequal ; elliptic-oblong or obovate, acute at apex, gradually 

 narrowed from the middle downwards at the base ; brown and glabrous 

 and somewhat shining on the upper, glaucous on the lower, surface ; 

 margin undulate ; 7 to 13-5 in. long, 2-5 to 5 in. broad ; midrib very- 

 stout, flat on the upper, much raised on the lower, surface ; main nerves 

 20 to 30 pairs, very regular, parallel, at an angle of from 60' to 70° with 

 the midrib, straight to the margin to meet a nerve which forms the 

 margin itself, all raised beneath ; secondary nerves verj'' few, chiefly 

 near the apex ; reticulations transverse, forming an elegant network on 

 the lower surface; petiole 1 to 1'25 in. long, stout. Follicles elongate, 

 woody (Miq.). Eest unknown. 



Singapore : T. Anderson 119. — Distrib. Sumatra {Teysmann). 



A. eximia, Miq., I. c, seems to differ only in the main nerves being more nearly at 

 right angles (80^) with the midrib. It also comes from Sumatra. 



8. Alstonia pangkorensis. King & Gamble, n. sp. A large tree (?) ; 

 branches very stout, smooth, somewhat fleshy, grey. Leaves mem- 

 branous ; obovate or oblanceolate, abruptly and shortly and bluntly 

 acuminate at apex, cuneate at the base for the lower two-thirds ; 

 glabrous above, minutely pubescent beneath, especially on the nerves ; 

 margins recurved ; 12 to 14 in. long, 4 in. broad ; midrib very stout, 

 impressed above, strongly raised beneath ; main nerves about 18 pairs, 

 stout, parallel, raised beneath, usually about -75 in. apart along the 

 midrib, starting at an angle of about 75° and gently curving upwards to 

 the margin ; secondary nerves few ; reticulations bold, fairly prominent 

 on the lower surface ; petiole stout, about -75 in. long. Follicles very 

 slender, 10 to 12 in. long, glabrous, striate, the margins refiexed after 

 the fall of the seeds. Eest unknown. 



Bindings : Pangkor Island, Scortechini 1024. 



12. Dyera, Hook. f. 



Glabrous trees with verticillate branches and thick angular chan- 

 nelled branchlets, laticiferous. Leaves in whorls, large, coriaceous, 

 oblong or obovate, with prominent main nerves and long petioles ; 



