ON SOUTH-AMERICAN APOCYNACEX. 259 
sepals acute, 3 lines long, rigidly puberulous; tube of corolla scarcely swelling above, 
12 lines long; segments 6 lines long. 
10. HÆMADICTYON TOMENTELLUM, Benth. Bot. Sulph. p. 126. In Guayaquil (Hartweg 670) : non vidi. 
A slender species, near the preceding, with glabrous or obsoletely glauco-tomentellous 
branches; leaves ovate-oblong, cordate at the base, shortly acuminate, glabrous or 
minutely hirtellous above, nerves scarcely visible, densely glauco-tomentose beneath, 
(size not given) ; raceme solitary and lateral at the nodes, shorter than the leaves, on a 
peduncle scarcely longer than the petioles, angular, minutely hirtellous, bearing several 
subaggregate flowers on pedicels shorter than the calyx; sepals lanceolate-acuminate, 
unequal, 5-6 lines long, with a broad short inner scale; tube of corolla cylindrical, 1 in. 
long, constrieted above, with an annular ring in the mouth, the appendages extending a 
little beyond it; segments large, expanded; stamens seated in the middle of the tube, 
on slender filaments; anthers acuminate, scarcely exserted, with 2 long basal prongs; 
follicles 2, tomentellous, 4-6 in. long; seeds oblong, triquetrous, with a copious longer 
coma. 
11. Hamapicryon PALLIDUM, A. DC. Le p. 428: Echites annularis?, Pavon MSS. (non Linn.) In 
Peruvia: non vidi. 
A glabrous species, of which little is known. Its leaves are ovate-oblong, cordate at 
the base, acute, pallid, opake, 3 in. long, 14 in. broad, on petioles 5 lines long; raceme 
shorter than the leaves; peduncle 14 in. long, bearing several flowers on pedicels 4 lines 
long, supported by aeute braeteoles 3 lines long; sepals oblong-obovate, subvelutinous, 
about 6 lines long, with an acutely ovate inner scale; tube of corolla yellow, cylindrical, 
14 lines long, narrower at the throat, with segments 9 lines long ; stamens seated in the 
upper portion of the tube; anthers hirtous behind, sagittate at the base, the appendages 
below the throat 2 lines long, pilose ; disk of 5 obtuse lobes half as long as the ovaries. 
12. Hamavicryon CALYCINUM, Lindl. (sec. Benth.): Hemadictyon Gaudichaudii, Müll. in parte (non 
A. DC.) l.c. p. 168. In Brasilia, Rio Negro: v. s. in herb. meo, Barra do Rio Negro (Spruce 1882). 
A handsome and peculiar species, very distinct from H. Gaudichaudii, which Müller 
probably did not see. It isa climbing plant, its branches being slender, pale, glabrous, 
angularly sulcate, verruculous, with dilated axils 9 in. apart, having a prominent cre- 
nulate ridge across the nodes; the leaves are elliptic-oblong, obtuse at the base, with a 
shortish, subreflexed, acute acumen, chartaceous, glabrous, green above, with about 
10 pairs of fine prominulent divaricating nerves arcuately conjoined, pale yellow beneath, 
with prominent reddish midrib, nerves, and reticulate veins, 5-52 in. long, 21-21 in. 
broad, on corrugated petioles 3 lines long; raceme solitary and lateral at the nodes, 
3-37 in. long; peduncle bare at the base for 14 in., bearing above about 10 alternate 
lax flowers on subreflexed slender pedicels 6-8 lines long, minutely bracteolate, all very 
glabrous ; sepals acutely oblong, subacuminate, 5 lines long, 2 lines broad, submembra- 
naceous, rugulous at the base, with a broad reddish pluridenticulate inner scale; corolla 
and other parts as usual. 21 2 
n 2L 
