214 ON SOUTH-AMERICAN APOCYNACEZ. 
leaves obovate-elliptic, diminishing below the middle into 2 narrow, cordate, incumbent 
lobes, gradually acuminate, flatly hirsute above, scabridulous beneath, adpréssed 
pilose on the prominulent nerves and veins, 21-3 in. long, 1-14 in. broad, on petioles 
4-5 lines long; raceme lateral, pilose; peduncle hirsute, 9 lines long, bearing upwards 
many approximate flowers on pubescent pedicels 4 lines long; sepals narrowly lanceo- 
late, glabrous, 5 lines long; tube of corolla 21 lines long, contracted at the base for 
7 lines, funnel-shaped above, cinereo-pubescent ; segments dolabriform, 9 lines long, 6 
lines broad; stamens inserted on a pilose ring in the contraction of the tube; follicles 
brown, terete, torulous, acute at both ends, subglabrous, 7-9 in. long; seeds 6 lines long, 
with a rufescent coma 11 lines long. 
15. TEMNADENIA GLAUCESCENS, nob.: Echites glaucescens, Mart. & Gal. Acad. Brux. xi. p. 358; Walp. 
Rep. vi. p. 476. Circa Oaxaca, in montibus : non vidi. 
A species with scandent glabrous branches; leaves ovate, cordate, acute, petiolate, 
glaucous beneath ; racemes axillary, longer than the leaves, with an elongated peduncle 
bearing 3—4 secund pedicellate flowers; sepals small, lanceolate ; corolla funnel-shaped, 
13 in. long; tube narrowed at the base for half an inch, broadening above; segments 
roundish ; anthers included ; disk of 5 free lobes. 
16. TeEMNADENIA SOLANIFOLIA, nob.: Hemadictyon? solanifolium, Müll. l. c. p. 171, tab. 49. In Brasilia, 
prov. Rio de Janeiro (Schiich, Akermann) : v. s. in herb. Mus. Brit. circa Itagoahy, in flore; prov. 
S. Paulo, in fructu (Bowie and Cunningham). 
The plant above cited agrees with the description and drawing of Müller; and though 
its flowers are somewhat smaller, they bear all the characters of Zemnadenia and none 
of the essential features of Hemadictyon, wanting the peculiar corona and the buccal 
appendages of the latter genus, in which it is doubtfully placed by Müller. It is a sub- 
scandent plant, with subflexuose ferruginously puberulous branches incrassate at the 
axils, which are 3-4 in. apart; leaves elliptic, obtuse or subacute at the base, constricted 
into an acute or obtuse mucronulate acumen at the summit, chartaceous, with revolute 
margins, finely corrugulate and fuscous green above, subasperously granulate, with 
about 8 pairs of slender divergent immersed nerves, yellowish opake beneath, granularly 
scabridulous, with obsolete hairs on granules upon the midrib and nerves, which are 
fuscous and prominulent, 24-44 in. long, 14-14 in. broad, on slender pilose channelled 
petioles 3-4 lines long; panicle lateral, ferruginously puberulous, on a terete peduncle 
6 lines long, bifid at the apex, each branch bearing about 6 opposite flowers on slender 
spirally twisted pedicels 3-6 lines long, with a small linear basal bracteole; sepals 
narrowly laneeolate, subpuberulous, with ciliolate margins, 3 lines long, each with 
an inner broadish subdentate scale; tube of corolla 6 lines long, a little ventricose 
above the middle, cylindrical above, where it is fuscous, thickish, and marked within the 
throat by 10 subpuberulous lines, but without corona or buccal appendages; segments 
rounder on one side, simply convolute dextrorsely, 3 lines long; stamens inserted on 
a pilose ring at the lower constriction of the tube; anthers slender, coherent, rigid, 
