ON SOUTH-AMERICAN APOCYNACEX. 233 
intervening leaves; they are subpatently opposite, broadly ovate-elliptic, obtuse and 
cordate at the base, suddenly briefly acute and mucronate at the summit, very membra- 
naceous, smooth on the margins, opake-green above, with very slender subimmersed 
nerves, pallidly yellowish and opake beneath, with nerves scarcely prominulent, 23-23 in. 
long, 13-13 in. broad, on slender petioles 23-83 lines long; racemes axillary, on a very 
slender peduncle 24 in. long, bearing several alternate yellow flowers 14 line apart, on 
pedicels bibracteolate in the middle, 4 lines long; sepals acute, 1 line long; 2 slender 
pendent follicles, 9 in. long, subtorose, with many lengthened interruptions. 
11. Mesecuires HASTATA, nob.: volubilis, ramulis tenuissimis, flexuosis, puberulis, cum axillis remotis ; 
foliis oblongis, imo angustioribus, cum sinu angusto cordatis, apice acuminatis, submembranaceis, 
marginibus planis, supra leete viridibus, costa nervisque puberulis, subtus fere concoloribus, sparsim 
pilosulis, costa flavida, pubescente, prominula, petiolis brevibus hirsutulis ; racemis lateralibus, folio 
longioribus, pedunculo pro tertia parte nudo, supra crebre alternatim multifloro; pedicellis imo 
breviter acute bracteolatis; sepalis brevibus, acutis; corolla hypocrateriformi; tubo cylindrico, 
medio constricto; segmentis rotatis, oblongis, quam tubus triplo brevioribus, In Cuba: v. s. in 
herb. Mus. Brit. Hacienda Saragosa (Schott 674). 
The axils of the very slender branchlets are 24-5 in. apart; leaves 13-13 in. long, 
8-10 lines broad, on petioles 24 lines long, the narrow basal sinus being 1 line deep. 
It is a species approaching M. Browne. 
12. Mesrcurres DicHOTOMA, nob.: Echites dichotoma, H. B. K. ii. p. 217; A. DC. l. c. p. 465. In 
regno Quitensi, prov. Bracamoros : non vidi. 
A climbing species, with glabrous terete branchlets; leaves ovate-oblong, cordate, 
acuminate, submembranaceous, entire, glabrous, very reticulately veined, nearly 5 in. 
long, 2t in. broad, on channelled petioles 3 lines long; raceme lateral, near 6 in. long, 
on an elongated peduncle, bearing 2 branches, each furnished with many flowers on 
glabrous pedicels 6 lines long, but twice that length in the fruit; sepals ovate-lanceolate, 
shorter than the tube of the corolla; corolla salver-shaped, of a bluish or violet colour; 
tube constricted near the middle; stamens inserted in the constriction of the tube; 
anthers cohering, acute, subsagittate; disk 5-cleft, shorter than the 2 ovaries; follicles 
pendulous, terete, torulose, glabrous, 6 in. long, containing many comose seeds. 
13. Musrcurres GuayaquiLensis, nob. : Echites Guayaquilensis, Benth. Pl. Hartw. p. 119. In Ecuador : 
v. 8. in herb. Mus. Brit. Guayaquil (Hartweg, no. 669). 
A slender twining plant, with pubescent branches; leaves ovate, narrowly cordate at 
the base, subacute, membranaceous, opake, margins ciliate, puberulous above, with fine 
immersed nerves, paler and opake beneath, subpuberulous, with fuscous midrib and 
nerves scarcely prominulent and pilose, 12 in. long, 8 lines broad, on very tomentose 
petioles 11 line long; raceme lateral, longer than the leaves; peduncle 13 in. long, bare 
at the base for 3 lines, bearing above 6-8 alternate spicate flowers on pedicels 1 line 
long; sepals acute, ¿ line long, each with an internal bidentate scale; tube of corolla 
slender, tomentous, subinfundibuliform above the middle, 8 lines long; segments ovate, 
2H 
