120 ON SOUTH-AMERICAN APOCYNACEA., 
base, sharply mucronulate, opake, rubescent or cinnamon-coloured above, paler beneath, 
with subimmersed midrib and nerves, 2-3 in. long, 4-9 lines broad, on slender petioles 
3 lines long; the peduncle of the axillary inflorescence is simple, erect, 2 in. long, or longer, 
bearing 2 suberect pedicels 5-8 lines long; sepals acute, 1 line long; corolla altogether 
12 in. long, the contracted portion of the tube 6 lines long, at which height the stamens 
are inserted, the upper portion of the tube is of the same length, funnel-shaped, and 
5 lines broad in the mouth; the segments dolabriform, mucronate at the apex, 9 lines 
long, 4 lines broad, with dextrorse convolution; stamens inserted in the constriction of 
the tube on a pilose ring; anthers cohering, 2 lines long, obtusely bifid at the base; 
disk of 5 fleshy, obtuse, erect lobes scarcely conjoined at the base, as long as the 2 free 
ovaries; follicles 2, suberect, supported by the persistent calyx, terete, 24 in. long, 14 line 
thick; seeds slender, fusiform, striolate, 1 line broad in the middle, 13-15 lines long, 
tndependently of their apical rostrum, which is 12 lines long, and is furnished from the 
bottom to the top with long, penniform, crowded, silky hairs, without any apical coma. 
A drawing of this species, exhibiting the peculiar structure of the seed, is given in 
Plate XV. a. 
3. RHABDADENIA LAXIFLORA, nob.: Echites suberecta, Grisebach (non Jacq. nec Sw.) in parte, Pl. Cub. 
Wr. p. 520; Cat. Pl. Cub. p. 171, n. 43; Revis. Cat. Pl. Cub. n. 1890. Iu Antillis: v. s. in herd. 
Mus. Brit. Cuba (C. Wright 400, sub Echites suberecta, Jacq.). 
A plant unquestionably belonging to Rhabdadenia, and generically distinct from either 
of the species described by Jacquin and Swartz. Its branches are somewhat slender, 
branching, terete, pubescent, with axils 2-1 in. apart; opposite leaves oblong-ovate, 
obtusely roundish at the base, rounded and frequently mucronulate by the shortly ex- 
current nerve, entire, chartaceous, darkish green of a rufescent hue above, opake, obso- 
letely puberulous, suleate along the midrib, with 5 pairs of divergent, arching, semi- 
immersed nerves, with others shorter and intermediate, and finely reticulated veins, 
whitish yellow beneath, opake, subvelutinous, with reddish costa, nerves, and fine 
reticulations, 13-2 in. long, %-1 in. broad, on channelled pubescent petioles 13 line 
long; racemes axillary, solitary at the nodes, about 5 in. long, on an erect peduncle, 
bare at its base for 21 in., bearing upwards about 5 alternate flowers, on pubescent 
stoutish pedicels 6 lines long, at intervals of 6 lines, supported by lanceolate bracteoles 
13 line long; sepals lanceolate-acuminate, erect, membranaceous, puberulous, reddish, 
4 lines long, 2 line broad at the base, with 3 short acute inner scales; corolla hand- 
some, of a reddish hue; tube 14 in. long, narrowed at the base for 5 lines, broadly 
eylindrical above and 4 lines broad, slightly pubescent outside, glabrous within; seg- 
ments dolabriform, 9 lines long, 6 lines broad, dextrorsely convolute ; stamens seated 
in the contraction of the tube; filaments membranaceous, glabrous, 1 line long; anthers 
-4 lines long, acuminate, with 2 acute, incurved, subparallel basal prongs; disk of 
5 fleshy, oblong, truncated lobes, concealing the 2 ovaries; style slender, 4 lines long; 
clavuncle inerassate, with a basal peltate membrane; stigmata very short; 2 follicles, 
suberect, subincurved, terete, smooth, 5-6 in. long; seeds linear, 4 lines long, continued 
by a very slender rostrum 33 lines long, which is plumosely covered by fine silky hairs 
3-6 lines long, 
