112 ON SOUTH-AMERICAN APOCYNACEA. 
The specific name is changed to surrecta, that it may no longer be confounded with 
the Echites suberecta of Jacquin (non Sw.). 
A drawing of it, with its floral analysis, is given in Plate XV. B. 
2, Cuartomma Domrncensts, nob.: Echites Domingensis, Sw. Prodr. p. 52; Fl. Occid. i. 529; Jacq. 
Coll. i. p. 73; Icon. Rar. tab. 53; A. DC. Z. c. p. 452: Echites heterophylla, Gmelin, Syst. i. 497: 
Urechites Jamaicensis, Griseb. Fl. Br. W. Ind. p. 416. In Antillis : non vidi. 
A very slender, branching, climbing plant, growing to a height of 10 feet, with fili- 
form, terete, pubescent, lactescent branchlets; leaves ovate-oblong, rounded or sub- 
cordate at the base, acute at the summit, entire, rigidly chartaceous, glabrous above, 
nerved and reticulately veined, pale ferruginous beneath, and scabridly pubescent, those 
of early growth narrowly linear and 3 in. long, those of permanent production 1-13 in. 
long, 6 lines broad, on short pubescent petioles; panicles axillary, subracemose, shorter 
or longer than the leaves, on bifid peduncles, each branch bearing few large odoriferous 
yellow flowers; sepals subulately linear, erect, subhirtous, 4 lines long; tube of corolla 
1 in. long, cylindrical below for a length shorter than the sepals, swelling above, and 
spreading to a breadth of 5 lines in the mouth, which is villous inside and subpenta- 
gonous ; segments large, obliquely inequilateral, undulated on the margin, 12 lines long, 
10 lines broad; stamens seated at the contraction of the tube, enclosed; anthers linear, 
with long slender apical appendages, spirally twisted together; disk of 5 roundish yellow 
lobes, embracing the 2 ovaries; style short; clavuncle incrassate, 5-lobed; stigmata 2, 
globose. 
This species evidently belongs to Chariomma (not to Skytanthus), on account of its in- 
florescence with large yellow flowers, the position of its stamens, and the presence of a 
conspicuous disk. 
3. CHARIOMMA MUCRONULATA, nob. In ins. San Thomas, v. s. in herb. Mus. Brit. ex loc. cit. (Rhyons, 
sub Echites erecta). 
A species near C. Domingensis, differing in the size and shape of its leaves and in its 
smaller flowers. It has rather slender terete branches, with axils 14 in. apart; leaves 
opposite, oblong, narrower towards the roundish base, broader and rounded at the mu- 
cronulate summit, chartaceous, with subcrenulate revolute margins, pale green above, very 
opake, with about 8 pairs of scarcely prominulent fine ascending nerves, opake and sub- 
ochraceous beneath, with a flattened midrib, prominulent nerves, and finely reticulated 
veins, 2-27 in. long, $-1 in. broad, on channelled petioles 2 lines long; inflorescence 
axillary, as long as the leaves, on a bifid pedales each branch bearing 3 or 4 flowers 
on finely hirsutulous pedicels 3 lines long; sepals linear, acuminate, membranaceous, 
hirsutely pilose outside, 3 lines long, + liue broad, pilose along the nerve within, with 
2 or 9 very minute internal scales; tube of corolla 7 lines long, stoutish, narrower at its 
base for 23 lines, spreading above to a breadth of 6 lines ; segments dolabriform, 6 lines 
long, and as broad, acute at the sinister angle, and dextrorsely convolute, subvillous 
outside, as well as the tube; stamens inserted in the constriction of the tube, and alto- 
gether included ; filaments pilose; anthers ovate, shortly bifureate at the base, expanded 
