ON SOUTH-AMERICAN APOCYNACEA. 75 
volute in sestivation; stamens seated on the contraction in the middle of the tube, on 
5 longitudinal pilose lines; filaments short, glabrous; anthers acute, with 2 some- 
what shortish acute basal prongs; disk very short, sub-10-lobed, embracing the base of 
2 pointed oblong ovaries for about a quarter of their length; style, clavuncle, and stig- 
mata as in the generic character. 
2. STEMMADENIA PUBESCENS, Benth. /. c. p. 125; Bignonia ? obovata, Hook. & Arn. Bot. Beechey’s Voy. 
p. 439. Realejo, Mexico: non vidi. 
An arborescent species, very near the preceding, with obovate leaves subacute at the 
base, shortly acuminate, glabrous above, membranaceous, margins entire, below very 
rigidly pubescent on the obliquely parallel nerves and reticulated veins, 4-6 in. long, 
on short petioles; racemes terminal, with few flowers 2-3 in. long, on short pedicels ; 
5 unequal oblong sepals, the 3 outer ones shorter; tube of corolla three times 
as long as the sepals, swelling above; an expanded border of 5 large, broad, roundish 
segments. 
3. STEMMADENIA MOLLIS, Benth. l. c. p. 125. In Guayaquil: non vidi. 
A species with terete dichotomous branchlets, angular, pubescent; leaves obovate- 
oblong, narrowed at the base, pubescent above, tomentous below, 4-5 in. long, 14—24 in. 
broad, on very short petioles ; sepals as in the preceding species, the outer ones and the 
bracteoles pubescent; corolla 3 in. long; tube longer than in the foregoing, more 
cylindrical, and less inflated. 
4. STEMMADENIA GRANDIFLORA, NOb.: Tabernemontana grandiflora, Jacq. Am. p. 40, tab. 31, (edit. 8vo) 
p. 51; Linn. Mant. p. 53; Lam. Dict. vii. 528; Tllust. tab. 170. fig. 2 (icon. Jacq. reduct.) ; A. DC. 
Prodr. viii. p. 368; Benth. in Journ. Bot. iii. p. 243; in Pl. Hartw. p. 167. no. 1275; Seem. Bot. 
Her. p. 167; Hook. Bot. Mag. tab. 3226. In Cartagena, Panama et Guiana (sec. Seem. l. c.) : in hb. 
Hook. Surinam (Hostmann), Venezuela (Linden), Nov. Granada (Linden, Cuming 1124); v. s. in 
herb. Mus. Brit. Panama (Seemann), Guiana (Sagot 389, Schomb. 767). 
A tree 8 feet high, with laetescent branches and dichotomous branchlets; leaves 
elliptic-oblong, cuneate at the base, with a linear reeurved acumen, entire, smooth, mem- 
branaceous, green above, with very slender nerves arcuately ascending, paler below, the 
reddish nerves scarcely prominulent, subimmersed, veins reticulated, 21-41 in. long, 
3-14 in. broad, on slender sulcate petioles 2-3 lines long; a short panicle seated in the 
dichotomy of the branchlets, on a peduncle 3 lines long, bifurcate, its branchlets being 
4 lines long, with several alternate small bracteoles and flowers mostly caducous, the 
terminal one supporting a single pedicellated flower (rarely 2-flowered); pedicel 2-4 lines 
long; bracts 1 or 2 beneath the calyx, equally long, foliaceous, truncate at the base; 
sepals large, membranaceous, very imbricate, 3 interior narrower, oblong, 8 lines 
long, 2 exterior double their breadth, truncate at their base, pointed, 5 lines long, 
all furnished at their base inside with numerous approximated pectinate scales 
united in a ring; corolla hypocrateriform ; tube cylindrical, 13 in. long, a little swollen 
and plicate below the mouth; segments of border inequilaterally obovate, or dola- 
hriform, expanded, sinistrorsely convolute in estivation; stamens rather long, slender, 
L 2 
