66 



ON SEEDLINGS 



Lower leaves oblanceolate, obtuse, tapering much to the base ; 

 those about the eighth or ninth pair or whorl lanceolate-elliptic, ob- 

 tuse, undulate at the margin especially in the upper part of the leaf, 

 tapering very much towards the base with straight, even margins. 



Ultimate leaves generally in whorls of three, and most frequently 

 one or two are much smaller than the third. Large leaves lanceo- 

 late-elliptic, much narrowed to both ends, or broadly elliptic, sub- 

 rhomboid and suddenly narrowed to both ends, obtuse or acute, 

 deep green and shining, margins much undulated. 



Genipa clusiaefolia, Griseb. (figs. 430, 481). 



Fruit baccate, fleshy, ovoid, with a thick or corky pericarp, and 

 the numerous seeds embedded in pulp. 



Seed very much flattened and rather thin, suborbicular or 

 variously angled, albuminous ; 

 testa pale brown, thin, subtrans- 

 parent as well as the endosperm, 

 and showing the outline of the 

 embryo very distinctly when the 

 seed is held up to the light ; raphe 

 forming a black line running 

 round the edge of the seed. 



Embryo comparatively large, 



'ia. 430. Genipa clusicefolia, x 2. 



A, longitudinal section of seed : En, 

 endosperm ; C, cotyledon ; R, radicle. 



B, transverse section of seed : 



C, cotyledons, 



P G. 431. Genipa clusi&folia. Germinat- 

 ing seedling with side of seed and one 

 cotyledon removed, x 4 : En, endosperm ; 

 T, testa; St, little protuberance covered 

 with unicellular, blunt hairs ; G, ground 

 line. 



and about a third the length of the seed, colourless ; cotyledons 

 roundly cordate, closely adpressed to one another, lying in the 

 broader plane of the seed, trinerved with a prominent midrib, 

 situated towards the micropylar end of the seed, surrounded by 

 endosperm, with their basal edges towards the hilum ; radicle about 

 equal to the cotyledons in length, terete, obtuse, slightly stouter 

 where the cotyledons are inserted. 



