224 ON SOUTH-AMERTOAN APOCYNACE^. 



rounded at tlie base, and there obsoletely cordate, acutely acuminate, rigidly chartaceous, 

 margins subrevolute, fuscous green above, sulcate along the yellowish midrib and nerves, 

 which are arcuately conjoined near the margin, palish beneath, with reddish prominent 

 midrib and nerves barbate in their axils, transversely veined, 2J-2f in. long, l^-lf in. 

 broad, on petioles 2 lines long ; axillary racemes IJ in. long, bearing several flowers, on 

 bibracteolate pedicels 2 lines long ; sepals acutely lanceolate, 1 line long, each with a 

 bidentate internal scale ; tube of corolla narrow, contracted in the middle, 4-6 lines long ; 

 segments 1-^2 lines long, dextrorsely convolute ; stamens inserted in the middle of the 

 tube on a pUose ring ; anthers with 2 very narrow parallel obtuse forks at the base ; 

 disk urceolate, of 5 obtuse lobes, subconnate, as long as the sepals, and half the length of 

 the ovaries ; style filiform ; clavuncle incrassate, supporting 2 short stigmata ; follicles 2, 

 on a peduncle 1^ in. long, slender, subparaUel, terete, somewhat torulose, 7 in. long ; 

 seeds linear, compressed, 3 lines long, with a reddish coma 6 lines long. 

 A species very near the preceding. 



17. MiTozxTs scABRiBULUs, nob. In Brasilia, v. s. in herb. Mus. Brit, ad Rio de Janeiro, Santa Thereza 



(Bowie & Cunningham). 



A scandent species : its branches are slender, with axils 2-2 J in. apart ; leaves patently 

 opposite, ovate, truncately obtuse at the base, where they are shortly constricted upon 

 the petiole, suddenly narrowed at the summit into a short acumen, rigidly chartaceous, 

 with very revolute margins, fuscous-green above, finely corrugulate, sulcate along the 

 semi-immersed oblique nerves and very reticulate veins, with granular glands at the 

 base of the yellow carinate midrib, flavidly opake beneath, with prominent fuscous 

 slender midrib and nerves, shortly scabrid over their surface, lf-2-|^ in. long, 1-1 j in. broad, 

 on slender fuscous scabridulous petioles, 3-4 lines long ; racemes axillary, l|-2^in. long, 

 with a flexuose rachis, shortly pedunculate at the base, and bearing many close flowers 

 spicately disposed on slender subrecurved twisted scabridulous pedicels 3 lines long, 

 supported by acute minute bracteoles ; sepals linear, acuminate, gibbous at the base, 

 subreflexed at the apex, subscabrid, 2 lines long; corolla yellow, scabridulous outside, 

 glabrous within, 3 lines long ; tube 2 lines long ; segments dolabrif orm, membranaceous, 

 1 line long, dextrorsely convolute ; stamens almost included ; anthers very slender, 

 glabrous, acuminate, with 2 long slender basal prongs; disk of 5 subconnate lobes, a 

 little shorter than the 2 glabrous ovaries. 



18. MiTOZus DiscoLOKj nob. : Echites discolor, Moritz, MSS. In Venezuela, sine loco (Moritz 1299): in 

 herb. meo. 



A species nearly approaching the preceding ; its branches are somewhat slender, fistu- 

 lous, scabridly pubescent, with axUs 2-| in. apart ; leaves opposite, subereet, lanceolate- 

 oblong, narrowed towards each extremity, very shortly and narrowly subcordate at the 

 base, with an apical narrow linear acumen, subchartaceous, margins scarcely revolute, 

 fuscous green and opake above, with an impressed punctulate surface, scabridulous, with 

 immersed nerves, beneath covered with a pubescent tomentum not very dense, with a 

 pale prominulent midrib, 2^ in. long, 3 lines broad, on hirto-pubescent petioles 2 lines 



