34 8 xci. apocynaceas. [Alstonia. 
Flowers numerous, white. All puberulous. Calyx campanulate, 
lobes short, triangular acute. Corolla puberulous, -14 in. long’ 
tube thicker and lobes larger than in angustifolia. Follicles 
slender, 13 in. long. Seed acuminate at one end often to a long point, 
edge and both ends covered with long red hair. Hab. Penang Hill 
(Maingay and all collectors) in woods at about 2000 ft. altitude. 
The whole habit and size of leaves of this tree, and the larger, more 
crowded flowers, distinguish this from angustifolia. Maingay calls it a tall 
tree, I know it as about 20 to 30 ft. tall and 4 or 5 in. through. 
(7) A. angustifolia Wall. Cat. 1650; King, l.c. 440. 
Usually a small slender tree about 20 to 50 ft. tall. Leaves 
sub-coriaceous, 3 in a whorl or opposite, oblanceolate or lanceolate 
cuspidate, base long, narrowed; nerves 12 to 16 pairs; 4 to 6 in. 
long, 1 to 175 in. wide; petioles -5 in. long. Panicle terminal, 
sessile of 8 or 9 slender peduncles 2 in. long; branches umbelled, 
1 in. long, 4 or 5 with short, few-flowered branchlets. Calyx 
urceolate pubescent, lobes ovate. Corolla white pubescent inside 
and out, *12 in. long, lobes round, -07 in. long. Follicles 18 in. long, 
■15 in. through. Seed oblong, -4 in. long, plumes -3 in. long. Hab. 
Woods. Common in* the south. Singapore (Wallich); Garden 
Jungle; Jurong; Bukit Timah; Pasir Panjang. Johor, Panchur. 
Malacca, Merlimau (Derry). 
(8) A. pangkorensis King and Gamble , lx. 442. 
Branches very stout. Leaves membranous, ovate or oblanceo¬ 
late, short blunt acuminate, base cuneate, pubescent beneath; 
nerves 18 pairs, elevate beneath; 12 to 14 in. long, 4 in. wide. 
Follicles slender, 10 to 12 in. long. Hab. Dindings, Pangkor 
(Scortechini). 
A very little known and altogether dubious species. 
Excluded Species 
A. Curtisii King and Gamble, lx. 439. Kasum (Curtis) out of 
our area. 
A. grandifolia Miq., King and Gamble, l.c. 442. A couple of 
leaves picked up in Singapore by Anderson, apparently leaves 
of Dyer a costulata. 
15 . HOLARRHENA, Br. 
Shrubs or trees. Leaves opposite. Flowers white often showy, 
fragrant in terminal or axillary corymbose or simple cymes. 
Calyx-lobes 5, narrow. Corolla salver-shaped, tube cylindric, 
slightly dilate round the stamens, lobes 5, oblong, overlapping 
to the right. Stamens near the base; anthers lanceolate. Disco. 
Carpels distinct; ovules many; style filiform; stigma oblong- 
fusiform, Follicles long, terete. Seeds oblong or linear with a 
