THE BOTANY OF SOUTH AMERICA. 179 



The calyx is 4 lines long, somewhat campanulate, glabrous, 

 purplish green, with a long woolly apex to each broad short 

 tooth. The corolla is tubular, contracted at base within the 

 calyx, expanding above into a somewhat funnel-shaped tube, 

 of a greenish yellow hue, about 1 £ inch long, and 3 lines in 

 diameter, quite glabrous, the border is cleft to the mouth into 

 5 equal oblong lobes, the margins being broadly conduplicate 

 and tomentous in aestivation, but glabrous when fully ex- 

 panded : the base of the tube is somewhat pubescent within, 

 thickened, and exhibiting 5 raised fleshy ribs, surmounted by 

 a thick broad gland, which is tufted with long white hairs, 

 from these arise the filaments, dilated at their origin, glabrous, 

 tapering upwards into a slender form, and exserted : the 

 anthers are of a lurid green, deeply cordate, of 2 oval lobes, 

 fixed in the sinus on the apex of the filament. The ovarium 

 is wholly enclosed in the persistent cup-shaped base of the 

 corolla, which here always falls off by a horizontal line : it is 

 supported on a small 5-lobed disc, which is shortly stipitate, 

 and quite free. The capsule is oval, smooth, 10 lines long, 

 5 lines diameter, supported by the cupuliform enlarged calyx, 

 is divided nearly to the base into 4 valves, the thickened dis- 

 sepiment becoming free, to which the seeds are attached by a 

 number of projecting fleshy seminiferous plates. The seeds 

 are ovate, somewhat angular, with a ventral excavation, in 

 which the hilum is seen a little above the middle. The testa 

 is tuberculated, with intervening small transverse striae, and 

 encloses an oval fleshy albumen, in the centre of which the 

 embryo is placed, which is erect and almost straight, but 

 which viewed in front is very little sigmoid, and sideways 

 slightly curved inwards : the radicle is thick and terete, the 

 cotyledons being somewhat broader, slightly compressed and 

 fleshy : I have sometimes found 3 cotyledons : they are about 

 i the length of the embryo .* 



A representation of this species with sectional details is given in 

 P| ate 21 of the " Illustrations of South American Plants." 



