170 ON SOUTH-AMERICAN APOCYNACEJE. 
petioles 6 lines long; raceme about 3 in. long, on a bare peduncle 14 in. long; bearing 
severallarge yellow subapproximate flowers on slender twisted pedicels 8 lines long; 
sepals unequal, obtuse, 31-5 lines long, 2 lines broad; the lower narrowed portion of 
the tube of the corolla 7 lines long, 12 line broad, upper moiety 7 lines long; segments 
7-9 lines long; anthers 4 lines long; disk urceolate, 5-grooved, margin denticulated, 
a trifle longer than the 2 ovaries. 
A drawing of this species, and an analysis of its flower, fruit, and seed, are shown in 
Plate XXVI. 
5. ANISOLOBUS STADELMEYERI, Müll. / c. p. 113 (in parte) : Echites densevenulosa, Stadelm. Bot. Zeit. 
1841, p. 47; A. DC. l c. p. 464. In Brasilia, prov. Rio de Janeiro: v. s. in herb, Mus. Brit. mont. 
Organ. (Gardner 5820). Â 
Probably a shrub, with scandent, slender, dark, pubescent branches, with axils 34 in. 
apart, having caducous stipules; leaves elliptic-oblong, obtusely acute and emarginate at 
the base, furnished at the apex with a short subacute acumen, rigidly chartaceous, fuscous- 
green above, obsoletely puberulous, with slender immersed nerves, paler beneath, glaucous- 
pruinose, subhirsute on the prominent midrib and nerves, veins closely reticulated, 32 in. 
long, 12 in. broad, on petioles 3 lines long; panicles in opposite axils, on a slender naked 
pubescent peduncle 14 in. long, twice trichotomously branched, each branch bearing about 
3 flowers, on pedicels with small bractlets and 4-6 lines long; sepals obtusely oblong, 
membranaceous, with ciliate margins, sparsely pilose, 35-4 lines long, 1-13 line broad, 
unequal, imbricate; corolla 24 in. long; tube cylindrical, suddenly constricted below 
the middle; segments dolabriform, rounded on the dexter side, simply convolute in the 
bud; stamens seated at the constriction of the tube; anthers linear, narrow, somewhat 
shortly bifurcate at the base; disk urceolate, 5-sulcate, and denticulated on the margin, 
concealing the 2 ovaries. 
6. ANISOLOBUS HEBECARPUS, Müll. /. c. p. 112, tab. 33. figs. 1 & 3: Echites hebecarpa, Benth. MSS. In 
Amazonas : v. $. in herb. meo Santarem (Spruce 681). 
An erect shrub, different from the preceding species, with very straight, subfistular, 
glabrous, opake branches, striate, rendered somewhat scabrous by many short, prominent, 
obtuse lenticels, with 2 stipules on each side between the petioles; leaves oblong-ovate, 
subcordate at the base, roundish towards the summit, and there constricted suddenly into 
a short acumen, chartaceous, opake above, with immersed nerves and transversely reticu- 
lated fine veins, paler beneath, pruinously opake (not pubescent), midrib and nerves pro- 
minent, 3-53 in. long, 13-23 in. broad, on stout, recurving, glabrous petioles 3-5 lines 
long ; panicle lateral, 3-5 in. long, on a deflected peduncle 6-18 lines long, divided at its 
apex into 2 parallel floriferous branches, each bearing about 6 alternate flowers; bracts 
linear-oblong, reddish, submembranaceous, margins glabrous, 3 lines long; pedicels 3-6 
lines long; sepals oblong, obtuse, glabrous, membranaceous, imbricate, 4-6 lines long, 
with an internal, subulate, bidentate scale; corolla handsome, deep rose-colour; tube 
20 lines long, narrowly cylindrical for half its length, fleshy, pubescent inside, cam- 
panular and glabrous above; segments obliquely very inequilateral, with an acute 
tooth near the sinister angle, dextrorsely convolute, 9 lines long and broad; stamens 
