ON SOUTH- AMEEICAN APOOTNACE^. 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, 2^2f in. 

 long, l|-lf in. broad, on slender petioles 2|-^3 lines long ; racemes axillary, on a very 

 slender peduncle 2^ in. long, bearing several alternate yellow flowers 1^ 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. Mesechites hastata, nob. : volubilis, ramulis tenuissimis, flexuosis, puberulis, cum axillis remotis ; 

 foliis oblongisj imo angustioribus, cum sinu angusto cordatis, apice acuminatis, submembranaceis, 

 marginibus planis, supra Isete viridibus, costa nervisque puberulis, subtus fere concoloribus, sparsim 

 pilosulis, costa flavida, pubescente, prominula, petiolis brevibus birsutulis ; racemis lateralibus, folio 

 longioribus, pedunculo pro tertia parte nudo, supra crebre alternatim multifloro ; pedicellis imo 

 breviter acute bracteolatis j 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 2^-5 in. apart ; leaves Ij-lf in. long, 

 8-10 lines broad, on petioles 2^ lines long, the narrow basal sinus being 1 line deep. 

 It is a species approaching M. Brownei. 



12. Mesechetes dichotoma, nob. : Echites dichotoma, H. B. K. iii. p. 217; A. DC. I. 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, 2 J 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 6-cleft, shorter than the 2 ovaries ; follicles 

 pendulous, terete, torulose, glabrous, 6 in. long, containing many comose seeds. 



13. Mesechites Guayaquilensis, nob. : Echites Guayaquilensis, Benth. PI. Hartw. p. 119. In Ecuador : 

 V. s. 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. If in. long, 8 lines broad, on very tomentose ■ 

 petioles 1^ line long ; raceme lateral, longer than the leaves; peduncle IJ in. long, bare 

 at the base for 3 lines, bearing above 6-8 alternate spicate flowers on pedicels 1 line 

 long ; sepals acute, f line long, each with an internal bidentate scale ; tube of corolla 

 slender, tomentous, subinfundibuliform above the middle, 8 lines long ; segments ovate, 



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