ON SOUTH-AMERICAN APOCYNACE®, 187 
segments dolabriform, with a prominent tooth at the sinister angle, membranaceous, 
8 lines long, 7 lines broad, sigmoidly shaped above; stamens seated on a woolly ring in 
the middle of the tube; stamens as in the preceding; disk and other parts as in the 
generic character; follicles unknown. 
3. AMBLYANTHERA CLAUSSENII, nob. : Echites Fluminensis, var. Claussenii, A. DC. l.c. p. 452: Amblyan- 
thera Fluminensis, var. Claussenii, Müll. l. c. p. 149. In Brasilia, prov. Minas Geraés ad Cachoeira 
do Campo (Claussen) : v. s. in herb. meo (Claussen 250). 
A climbing plant, with flexuous, slender, patently pubescent, fistulous branches, 1 line 
thick, with axils 41—7 in. apart, rarely with a very slender, unilateral, very pubescent 
branchlet ; leaves ovate, rounded and deeply cordate at the base, with rounded lobes, 
contracted below the apex into a subulately linear recurving acumen, fuscous green and 
opake above, remotely hispid with rigid hairs bulbose at the base, patently cano- 
hirsutulous along the midrib, with about 16 pairs of divergent nerves and others shorter 
and intermediate, with transversely reticulated veins, ciliate on the margins, paler 
beneath, and more densely hispidulous, especially on the nerves, 21-44 in. long (in- 
cluding the basal lobes 3 lines long), 11-2 in. broad, on retrorsely hispid petioles 2 lines 
long; raceme solitary, lateral at the nodes, 3—4 in. long, patently hirsute, on a stoutish 
divergent peduncle bare at the base for 1-12 in., bearing upwards about 12 alternate 
flowers on hirsute pedicels 2 lines long, each supported by a large foliaceous ovate bract, 
substipate at the base, with an elongated, very narrow, incurved linear point, with coloured 
nerves, densely pubescent beneath, 10 lines long, 4 lines broad ; sepals subulately linear, 
very acute, with a reddish membranaceous margin, smooth inside, puberulous outside, 6 
lines long, 1 line broad at the base; corolla of a deep scarlet colour when in bud, densely 
clothed with white woolly hairs, afterwards subglabrous; tube cylindrical as far as the 
middle, funnel-shaped above, 10 lines long ; segments rhomboidal, much veined, uncinately 
acute at the sinister angle, horizontally spreading on the dexter side, 6 lines long, 4 lines 
broad; stamens seated in the contraction of the tube, on a densely woolly niveous ring. 
A representation of this species, with an analysis of its flower, is shown in Plate XXV. 
4. AMBLYANTHERA HISPIDA, Müll. 7. c. p. 147, tab. 44. fig. 2. In Brasilia australiore: v. s. in herb. Mus. 
Brit. sine loco (Sellow, in fructu). 
A climbing species, with simple, terete, flexuous, hirsute branches; leaves oblong- 
ovate, narrower below the middle, deeply cordate at the base, with rounded lobes, gra- 
dually or more suddenly acuminate, chartaceous, fuscously olive-coloured above, opake, 
subsparsely hispid, with adpressed soft hairs seated upon prominent rugous points, with 
about 12 pairs of divergent semi-immersed nerves, ferruginously pallid and opake be- 
neath, densely hirsutulous, especially on the midrib and nerves, and on the transverse 
veins with patent more rigid hairs, 43-53 in. long, 2}-2% in. broad, on patently hispid 
petioles 5 lines long; raceme (according to Miller) axillary, as long as the leaves, 
pubescent, on a peduncle bare at the base for 14 in., bearing several flowers on stout 
subreflected pedicels, supported by as many linear-lanceolate pubescent bracts as long 
as the pedicel and calyx; sepals linear-lanceolate, subpubescent, 33-44 lines long, 1 line 
broad at the base, each with an inner, ovate, subcrenate scale; tube of corolla cylin- 
2B 2 
