412 APOCYNEJS. 



below the cells. Disk urceolate or glandular. Follicles cylindrical : seeds cylindrical, 

 often hairy, devoid of a terminal coma. — Glabrous shrubs ; cymes umbelliform. 



27. M. retroflexa, J. Hull. Leaves ovate-oblong, poiutleted ; cymes few-flowered : 

 pedicels much longer than the petioles ; calyx-segments linear, acuminate, recurved ; corolla- 

 tube tapering above, as long as the linear lobes ; anthers shortly exserted ; disk 5-glandular. 

 Habit of Tabernamontana ; leaves 4"-5", calyx \\ w , corolla-tube 4'" long.— Hab. S. Vin- 

 cent!, Guild. 



13. FORSTERONIA, Mey. 



Corolla rotate, naked-, segments equilateral, sinistrorsely contorted. Stamens inserted 

 into the corolla-tube : anthers exserted, connivent, adhering at the middle to the stigma, 

 connective hastate below the cells. Disk 5-glandular. Follicles cylindrical : seeds with a 

 terminal coma. — Climbing or trailing glabrous shrubs ; leaves leathery, petioled : cymes 

 terminal, corymbifonn. 



J. Midler's character of a dextrorsely contorted corolla does not agree with our genus, 

 comprising Meyer's original species: hence on the difference of the aestivation (verified in 

 several Brazilian and one West Indian species) and on some minor points, Thyrsanthus, 

 Benth., which he had reduced to Forsteronia, may be restored. 



28. P. corymbosa, Mey. Leaves elliptical, mucronate or blunt ; corolla crimson, 

 puberulous at the throat : segments thrice as long as the tube ; stamens inserted into the 

 middle of the corolla-tube ; anthers thrice as long as the filaments, wholly exserted ; disk- 

 glands short. — Jacq.Amer.Pict. t. 37. — Echites, Jacq. — A climber; leaves 2"-l|", corolla- 

 segments 3"', seeds 4'" long : their coma rusty. — Hab. Jamaica !, Wils. ; [Cuba 1 to 

 Guiana!]. 



29. P. Alexandra, Gr. (n. sp.). Leaves elliptical-oblong, bluntish ; corolla whitish, 

 bearded at the throat : lobes half as long again as the cylindrical tube ; stamens inserted 

 into the middle of the corolla-tube : anthers four times as long as the filaments, half-ex- 

 serted ; disk-glands ovoid, as long as the ovaries. — A climber ; leaves 2J"-2" long ; cymes 

 sessile, as in the preceding ; calyx 1"' long, internally with minute glands at the base : seg- 

 ments lanceolate, bluntish ; corolla-lobes 2'" long ; anthers narrow j follicles 8"-10" long : 

 seeds linear, puberulous, 5'" long : coma pale-rusty. — Hab. Jamaica !, AL, Pd., on trees, 

 S. Thomas i. V.; [Cuba!]. 



30. P. floribunda, G. Don (non J. Mull.). Leaves oblong, bluntly mucronate ; co- 

 rolla whitish, glabrescent at the throat : segments thrice as long as the campanulate tube ; 

 stamens inserted near the base of the corolla ; anthers twice as long as the filaments, ex- 

 serted above their base ; disk-glands subglobose, short. — Echites, Sw. ! — A trailing shrub 

 (Sw.) ; leaves 3"-2", corolla- segments 2'", seeds 5'" long, the latter fusiform with a pale- 

 rusty coma. — Hab. Jamaica !, Sw., March, among mountain-shrubs. 



14. THYRSANTHUS, Benth. 

 (Forsteronia, /. Mull.) 



Corolla infundibular or rotate, naked : lobes equilateral, dextrorsely contorted. Stamens 

 inserted near the corolla-base -. anthers connivent, cohering at the middle to the stigma, ob- 

 long : connective truncate-cordate below the cells. Disk 5-glandular. Follicles cylindri- 

 cal : seeds with a terminal coma. — Shrubby climbers ; flowers small, paniculate : panicle 

 usually terminal, thyrsoid or contracted. 



31. T. Wilsonii, Gr. (n. sp.). Glabrescent; leaves opposite, membranaceous, elliptical, 

 pointleted, archveined, shortly petioled : secondary veins transverse ; panicle puberulous, 

 shortly ovate-thyrsoid : flowers glomerate, bracteolate ; calyx-segments lanceolate-acuminate ; 

 corolla infundibular : lobes oblong, nearly as long as the tube ; anthers included, membrana- 

 ceous at the top, much longer than the filament. — Allied to T. brasiliensis (Forsteronia, 

 A. DC.). — A "very fragrant, trailing" shrub ; leaves 3"-2", panicle about 1" long ; flowers 

 small, numberless ; connective cordate at the base ; stigma fusiform, 2-fid at the top. — Hab. 

 Jamaica !, Wils., Pd., Manchester, on trees. 



