246 ON SOUTH-AMERICAN APOCYNACEZ. 
8. FORSTERONIA AUSTRALIS, Müll. Z. c. p. 103. In Brasilia australiore, prov. Sao Paulo (Sellow) : v. s. 
in herb. Mus. Brit. Brasilia merid. (Sellow, Bowie and Cunningham). 
Branches slender, fuscous, sparsely verruculose, glabrous, with axils 143 in. apart; 
leaves elliptic or obovate, obtuse or subacute at the base, with a suddenly constricted 
acute acumen, flaccidly chartaceous, very glabrous, above fuscous-green, with about 9 
pairs of prominulent diverging nerves and immersed reticulated veins, brownish opake 
beneath, with prominulent nerves and veins, 24-3} in. long, 13-21 in. broad, on slender 
channelled petioles 3-4 lines long; panicle terminal in the young branchlets, 23 in. long, 
oppositely branching from the base, and again divided; branchlets ? in. apart, sublaxly 
many-flowered on bracteolate tomentellous pedicels 13-2 lines long ; sepals ovate, obtuse, 
tomentellous, with ciliolate margins ; corolla 2-21 lines long; tube very short ; segments 
obliquely ovate, densely pilose inside. 
9. ForsTERONIA OBTUSILOBA, Müll. Linn. xxx. p. 413. In Caracas: non vidi. 
A species said to be near F. australis, with reddish fuscous branchlets ; leaves ovate, 
somewhat acute at the base, shortly acuminate, very glabrous, membranaceous, 2 in. 
long, 13 in. broad, on petioles 13-2 lines long; panicle terminal, 23 in. long, pyramidal, 
patently and shortly branched, the branchlets again divided and densely flowered ; corolla 
2 lines long, glabrous, with a very short tube hispid in the mouth; segments acutely 
oblong, shortly tomentellous; disk of 5 nearly free obtuse lobes; ovaries ovoid, subto- 
mentellous at the apex. 
10. ForstERONIA ACUTIFOLIA, Müll. Fl. Bras. xxvi. p. 99. In Brasilia ad Rio de Janeiro: v. s. in herb. 
Mus. Brit. l. c. (Sellow, Bowie and Cunningham). 
It has a twining branch, with a resilient bark; branches very slender, pale brown, 
lenticellate, more or less puberulous; leaves ovate-oblong, subacute at the base, sud- 
denly acutely acuminate at the summit, chartaceous, glabrous above, fuscous green, 
with 7 pairs of slender, scarcely prominulent, divergent nerves and transverse reticulate 
veins, darkly ferruginous beneath, subpuberulous, with reddish prominulent nerves, 
3 in. long, 1$ in. broad, on very slender petioles 5 lines long; panicles axillary and 
terminal, 3 in. long, bare at the base for 3 in., rather narrow, densely ferrugineo- 
puberulous, with short branches 4-6 lines apart, divided and bearing many very small 
approximate flowers on slender pedicels 2 line long; sepals acutely ovate, 2 line long; 
corolla 2 lines long, tube very short. 
ll. FORSTERONIA PROTENSA, nob.: Forsteronia acutifolia, var. pubescens, Müll. (non A. DC.) l. c. p. 99. 
In Brasilia circa Rio de Janeiro (Sellow): v. s. in herb. Mus. Brit. ex l. c. (Sellow, Bowie and 
Cunningham). 
A scandent species, with slender flexuose branchlets, pale brown, striolate, and lenti- 
cellate, with axils 14 in. apart; leaves elliptic-oblong, acute at the base, suddenly con- 
stricted towards the apex into a long, straight, linear, obtusulous acumen, chartaceous, 
glaucous opake and fuscous-green above, with about 7 pairs of slender, diverging, semi- 
