156 ON SOUTH- AMERICAN APOCTNACILE. 



glabrous, funnel-shaped above ; segments broadly dolabriform, acutely uncinate, 1^ in. 

 long, 1 inch broad ; stamens inserted on a pilose ring at the constriction of the tube ; 

 disk of two rounded subtruncate lobes, half as long as the two ovaries. 



6. DiPLADENiA ALEXicACA, A. DC. I. c. p. 484 : Dipladenia illustris, var. glabra, Miill. I. c. p. 126 : 



Echites ahxicaca, Stadelm. I. c. p. ^68. In Brasilia, prov. Bahia (Blanch. 3382) : non vidi. 



A species with a napiform, tuberous root, throwing out several erect, simple stems ; 

 leaves obovate-orbiculate, rounded at the base, very shortly acute, 2-2| in. long, nearly 

 of the same breadth, on petioles 1^ line long ; raceme terminal, few-flowered, on bracte- 

 ated pedicels 6-10 lines long ; corolla 1^ in. long, rose-coloured. 



7. Dipladenia ANDRosiEMiFOLiA, A. DC. I. c. p. 484 : Dipladenia illustris, var. glabra, MiiU. I. c. p. 126. 



In Brasilia, prov. Bahia ad Igreja Velha (Blanch. 3582 in parte) : non vidi. 



An erect, compressed stem, 12 in. high ; leaves broadly elliptic, obtuse and cordate 

 at the base, cuspidate at the apex, pale green above, glabrous, with many approximate 

 parallel nerves, 1^ in. long, 1-lj in. broad, on petioles 1 line long; raceme terminal, on 

 a peduncle bearing 5-6 rose-coloured flowers, on pedicels 6 lines long, supported by 

 lanceolate bracts 2 lines long ; sepals lanceolate acuminate, 4 lines long, each with 2 

 inner bidentate scales ; tube of corolla 1 in. long, contracted for half its length in a 

 cylindrical form ; disk of 2 broadly rounded lobes, half as long as the 2 ovaries. 



8. Dipladenia venulosa, MiiU. I. c. p. 126. In Brasilia, prov. Minas Geraes : non • 



A species near D. sancta : stem 2|- lines thick, somewhat thickened at the approximate 

 axils ; opposite leaves ovate, cordate, subobtuse at the apex, chartaceous, very glabrous, 

 with 12-15 pairs of parallel nerves, veins reticulated, 2f-4J in. long. If- 2f in. broad, 

 on petioles 1 line long ; raceme lateral, as long as the leaves, with 3-5 large flowers, on 

 pedicels nearly 1 in. long, with bracts 3 lines long ; sepals linear-lanceolate, 4-5 f lines 

 long, with several simple inner scales more or less combined at the base ; tube of corolla 

 If in. long, contracted in a narrow cylinder for 10 lines ; segments broadly dolabriform, 

 12 lines long, 9 lines broad. 



9. Dipladenia rosa campestris, Lemaire in Van Houtte, Flor. des Serr. iii. 256; Walp. Ann. i. 504. 



Dipladenia illustris, var. pubescens, Miill. I. c. p. 125 : Echites rosa campestris, Hiigel, Parad. 

 Vindob. fasc. 5, cum icon. In Amer. trop. : patria ignota (forsan Brasilia) . 



E/Oot tuberous, woody, with erect, simple stems, which (with the leaves) are velvety 

 pubescent, and 18 in. high ; leaves oval, with a short, recurved, mucronate point at the 

 apex, midrib thickish, with numerous approximately parallel nerves ; large, handsome 

 flowers, of a pale rose colour ; tube campanulate above, yellow within and in the mouth 

 stellately striped. If in. long, narrowly cylindrical at its base for one third of its length, 

 subcampanular above, glabrous ; segments oblique, dolabriform, shortly uncinate, patent, 

 undulate. 



