STYRACE^E 209 



deep, basal, erect, marked longitudinally or in a radiating manner 

 from the hilum to the apex by three shallow furrows and three 

 slender intermediate and equidistant ridges ending in a small 

 elevated point, and all corresponding to their counterparts on the 

 inner face and apex of the pericarp ; testa very thick, crustaceous or 

 almost horny or bony, pale brown and shining ; tegmen thin, pale, 

 membranous ; hilum basal, depressed, pale-coloured, rather con- 

 spicuous ; raphe and chalaza indiscernible in the mature seed. 



Endosperm copious, fleshy, white when moist and becoming pale 

 yellow, prominent at the micropyle and pushed a little way into the 

 testa. 



Embryo nearly as long as the endosperm, slightly curved, similar 

 to the endosperm in colour ; cotyledons broadly ovate, obtuse, 

 entire, flat or nearly so, about equalling or slightly longer than the 

 radicle and less in diameter, lying in the endosperm with their 

 backs to the placenta, and somewhat transverse or obliquely trans- 

 verse to the latter with five incurving nerves at the base, anastomos- 

 ing towards the margin ; radicle cylindrical, pointing to the micro- 

 pyle, contiguous to and on one side of the hilum, its tip projecting 

 into the projecting part of the endosperm, piercing the testa at the 

 micropyle. 



Styrax japonicum, Sieb. ct Zucc. 



Hypocotyl erect, terete, about 4 cm. long, with a few minute 

 hairs, light green or colourless. 



Cotyledons broadly oblong-oval, obtuse, entire, petiolate with 

 short flat petioles, glabrous, dark green, distinctly pinnatinerved like 

 the leaves. 



Stem erect, terete, herbaceous, ultimately woody, hispid ; 1st 

 internode 1 cm. long ; 2nd about 5-6 mm. 



First leaves simple, cauline, alternate, exstipulate, shortly petio- 

 late, lanceolate, acuminate, rather serrated on the edges, obtuse, 

 hispid, distinctly pinnatinerved. 



