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broad, densely pubescent outside 
and inside; calyx about 2 mm. or 
less long; corolla tube densely 
tomentose outside. Malaya 6 
Corolla lobes oblong, about 3 mm. 
or more long and about half as 
broad, glabrous or slightly pube- 
rulent outside and sparsely pubes- 
cent inside; calyx over 2 mm. long; 
corolla tube mostly glabrous or 
sparsely pubescent outside. Philip- 
pines and Borneo.. -.17. A. parvifolia 
6(5). Petioles mostly 1 to 2 cm. long, 
blades 2 to 6 cm. broad; calyx 
lobes mostly spreading; corolla 
tube 2.3 to 3.5 mm. long; anthers 
0.6 to 1 mm. long 7 
Petioles 2.5 cm. long, blades 6.5 to 
8 cm. broad; calyx lobes hardly 
spreading, sharper at apex than in 
the typical form; corolla tube 4.5 
to 5.5 mm. long; anthers 1 to 
1.3 mm. long 
16b. A. angustifolia var. latifolia 
7(6). Corolla tube 3 to 3.5 mm. long, 
corolla lobes broadly oblong-ovate; 
calyx tube about 1.2 to 1.3 mm. 
long 16. A. angustifolia (typical) 
Corolla tube 2.3 to 2.6 mm. long, 
corolla lobes more oblong in shape, 
less densely pubescent outside; 
calyx tube almost lacking, calyx 
lobes less reflexed, sharper at apex 
..16a. A. angustifolia var. annamensis 
8(3). Leaves with principal lateral nerves 
close, averaging 3 to 6 mm. apart 
near middle of blade. Australia.... 
19. A. ophioxyloides 
Leaves with principal lateral nerves 
more distant, averaging 6 to 12 
mm. apart. Java to Australia and 
elsewhere 18. A. spectabilis 
9(2). Corolla lobes ligulate, 3.5 to 7 mm. 
long and less than half as broad, 
about as long as corolla tube 10 
Corolla lobes oval, 2 mm. long and 
half as broad, 2 A as long as corolla 
tube, ciliate only at base; leaves 
glabrous. New Guinea. (Not 
seen.) 23. A. glabriflora 
10(9). Pedicels comparatively long and 
slender, up to 4 mm. long; calyx 
less than 1.5 mm. long, the lobes 
about 1 mm. or less long, gray- 
puberulent or glabrous outside; 
stamens inserted near throat of 
corolla tube; leaves pubescent or 
glabrous beneath. Philippines to 
Malaya 11 
Pedicels short and stouter, less than 
3 mm. long; calyx about 2 mm. 
long, the lobes over 1.5 mm. long, 
glabrous or nearly so outside; sta- 
mens inserted near middle of co- 
rolla tube; leaves glabrous. New 
Guinea 22. A. Brassii 
11 (10). Calyx lobes usually less than 1 mm. 
long, puberulent as well as ciliate; 
anthers about 0.9 mm. long 
21. A. macrophylla (typical) 
Calyx lobes usually more than 1 mm. 
long, ciliate, otherwise glabrous, 
sharper at apex; anthers about 1.1 
mm. long. Amboina and Ceram.... 
..21a. A. macrophylla var. acuminata 
Section Dissuraspermum (A. Gray) Benth., 
in Benth. and Hook., Gen. PI. 2: 705. 
1876. 
Subgen. Dissuraspermum A. Gray, in Proc. 
Amer. Acad. 5: 334. 1862. 
Series Orientales Pichon, in Paris Mus. d’Hist. 
Nat, Bui. II, 19: 298. 1947. 
Small trees or shrubs. Leaves opposite, rarely 
also 3-verticillate, lateral nerves distant or close, 
reticulation manifest or obscure. Corolla lobes 
with right margins overlapping; disc not appar- 
ent. Follicles separate; seeds elliptic, usually 
caudate at both ends, sometimes merely acu- 
minate; tails often forked, faces pubescent, mar- 
gins and tails short-ciliate with hairs more or 
less equal in length, not comose-ciliate; placental 
scar short. 
Type species. — Gray furnished an adequate 
description of this group and cited as represen- 
tative species, A. costata and A. plumosa. The 
older species, A. costata (Forst. f.) R. Br, is 
proposed as the type of the section. 
Key to Section Dissuraspermum 
1. Calyx lobes manifestly ciliate; seeds 
lanceolate, 7 to 12 mm. long, 
hardly caudate. Plants of Australia 
25. A. constricta 
Calyx lobes not ciliate. Plants not of 
Australia 2 
