494 ON SEEDLINGS 



rather fleshy, deep green, ultimately somewhat pulpy ; endocarp 

 bony, forming a smooth, hollow sphere, with which the seed con- 

 forms. 



Seed suspended from one side slightly below the apex, globose 

 with a prominent projecting micropyle close to or at the apex of 

 the carpel, albuminous ; testa thin, white when young or immature, 

 marked with a semitransparent spot on the opposite side of the 

 hilum from the radicle ; hilum small, orbicular, somewhat promi- 

 nent. 



Endosperm fleshy, white, originally occupying the whole seed, 

 but as the ovary grows becoming more and more pushed towards 

 the hilum of the fruit with a considerable mass in the concave face 

 or hollow formed by the cotyledons. 



Embryo fleshy, colourless, straight at first, then becoming con- 

 cave on the side towards the placenta, and increasing till it attains 

 the length of the fruit ; the ends of the cotyledons then curve up 

 the other side of the seed towards the hilum, the apical halves 

 become folded upon each other longitudinally, and the tips some- 

 times transversely folded ; the cotyledons also become emarginate 

 at a very early age, when they are shortly oblong, rounded at the 

 base, subsequently elongating and becoming obovate-oblong, deeply 

 emarginate or bifid, cordate .-at the base and trinerved, with the 

 midrib forking close to the sinus, one branch entering each lobe of 

 the cotyledon. 



Seedling (fig. 646). 



Primary root long, tapering, flexuose, and giving off numerous 

 rootlets. 



Hypocotyl woody, erect, terete, pubescent, pale green, about 

 4 cm. long. 



Cotyledons oblong, deeply emarginate, cuneate at the base, 

 shortly petiolate, three- or obscurely five-nerved from the base with 

 the midrib forking and one fork going to each of the apical lobes, 

 minutely pubescent, deep green above, paler beneath, 1*7 cm. long 

 including the petiole, 7 mm. wide. 



Stem woody, erect, terete, hispid and pale green, ultimately 

 forming a large tree ; 1st internode 9-13 mm. long ; 2nd 1-4 cm. 



Leaves simple, cauline, alternate (first two opposite), stipulate, 

 petiolate, coarsely hairy and pubescent or hispid, ultimately glabrous 

 or nearly so, alternately penninerved and reticulate, plicate in verna- 

 tion, and covered in the young unfolding condition with clear, 

 crystalline, dot-like glands pellucid in the seedling plant owing to 

 the thinness of the leaves ; petiole short, terete, hairy, articulated 



