SAPOTACE^E 199 



leading particulars. The cotyledons are subterranean and 

 fleshy, but split open the woody testa during germination. 

 The stem is very stout and is notable for the length of the first 

 internode which measures 7-10 cm., and compensates for 

 the want of the hypocotyl. The leaves are sometimes pseudo- 

 verticillate, but as a rule alternate, and the first six are closely 

 aggregated above the first internode, oblong or lanceolate- 

 elliptic and penninerved. 



The cotyledons of Butyrospermum Parkii are fleshy and 

 subterranean like those of Lucuma ; but the first three or four 

 leaves are small, scale-like, and caducous, while their stipules 

 are more persistent. The next two or three are foliaceous, 

 elliptic and penninerved. 



Chrysophyllum oliviforme, Lam. 



Primary root long, tapering, with lateral rootlets. 



Hypocotyl erect, terete, glabrous, soon becoming woody, 8'5- 

 4 - 5 cm. long. 



Cotyledons oval, obtuse, entire, shortly petiolate, obscurely tri- 

 nerved, opaque, fleshy, deep olive-green and convex above, much 

 paler beneath and sometimes slightly concave, glabrous, often 

 irregular in outline, often shortened at the apex, and in other 

 cases somewhat oblique ; petiole plano-convex or slightly grooved 

 above. 



Stem erect, terete, or slightly compressed in the seedling, 

 covered with a pale brown or yellowish, adpressed pubescence ; 1st 

 internode 4 mm. long. 



Leaves simple, entire, cauline, alternate except the primary 

 ones, shortly petiolate, exstipulate, penninerved, with the nerves 

 incurved and not reaching the margin ; petiole subterete, channelled 

 above, covered with an adpressed pubescence. 



No. 1. Lanceolate, acuminate, ciliate at the margin, slightly 

 bairy on the ribs above at least when young, and covered with a 

 silky adpressed pubescence beneath. 



Lucuma mammosa, Gaertn. 



Seed very large, elliptic, with a smooth woody testa. 



Hypocotyl undeveloped, or short and subterranean. 



Cotyledons conforming to the interior of the testa, fleshy, plano- 

 convex, or slightly concave above, splitting open the testa during 

 germination, but remaining in it and subterranean. 



