5S8 



ON SEEDLINGS 



Tacsonia ignea, Hort. (fig. 376). 



Fruit globose or oblong, baccate, stipitate, one-celled with three 

 parietal placentas, many- seeded, indehiscent. 



Seed obovate, much compressed laterally, tridentate at the apex, 

 blunt or emarginate at the base, enclosed in a cup-shaped funicular 

 aril ; testa thick, crustaceous, glabrous, black, deeply pitted on both 



FIG. 376. Tacsonia ignea, x 12. A, seed. B, longitudinal section of seed. 

 C, transverse section of seed : M & H, position of micropyle and hiliim ; 

 Ch, chalaza ; -Ba, raphe ; P, endosperm ; C, cotyledons. 



sides with the impressions so deep as to affect the aril ; chalaza 

 apical and passing through the testa, where it abuts against the 

 endosperm in a dull yellow conical mass ; raphe ventral passing 

 along one edge of the seed from the hilum in the basal notch to the 

 chalaza seated in the middle tooth at the apex of the seed. 

 Seed 4-25-4-75 mm. long ; 2-75-3 mm. wide ; 1-75-2 mm. thick. 



