230 ON SEEDLINGS 



along more than half the length of the seed ; micropyle superior ; 

 wing narrow. 



Endosperm copious and fleshy, surrounding the embryo. 



Embryo straight, flat, large, colourless, nearly as long as the 

 endosperm ; cotyledons flat, broadly oval or suborbicular, central, 

 entire ; radicle cylindrical, obtuse, about one-half to two-thirds as 

 long as cotyledons, close to the apex of the endosperm, pointing to, 

 but some little distance from the hilum. 



Stephanotis longiflora, ? Hort. 



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

 about 7-10 mm. above the soil. 



Cotyledons foliaceous, rotund-oblong, emarginate, rigid, cori- 

 aceous, glabrous, shortly petiolate, pale green and shining above, 

 paler beneath ; lamina I'l cm. long, 1 cm. wide ; petiole slightly 

 grooved above, 1 mm. long. 



Stem woody, erect in the seedling stage, terete or slightly flat- 

 tened in the opposite way to the leaves, finely pubescent, shining, 

 green or subglaucous-green ; 1st internode 4 - 5 mm. long ; 2nd 

 4-25 mm. ; 3rd 1-5 cm.; 4th 1-95 cm. ; 5th 3-65 cm. 



Leaves simple, entire, cauline, opposite, decussate, exstipulate, 

 petiolate, glabrous, thick, rigid or coriaceous, alternately and ob- 

 scurely penninerved, even and shining on both surfaces, with the 

 midrib slightly prominent beneath, and a pale hyaline or pink 

 cartilaginous margin ; petioles short, stout, slightly grooved above, 

 rounded on the back and thickened at the base. 



First pair elliptic, obtuse. 



Second pah* larger, subacute. 



Third pair much larger, elliptic, acute. 



Fourth pair small, unequal in size, acute. 



Fifth pair large, elliptic, acute. 



Hoya viridiflora, B. Br.? (fig, 520). 



Hypocotyl erect, terete, glabrous, pale green, 6-12 mm. above 

 the soil. 



Cotyledons foliaceous, broadly oblong or oval, rounded at the 

 apex, tapered to the base, petiolate, alternately and ascendingly 

 penninerved with the tips only incurved and uniting with those 

 next above them, shortly pubescent on the midrib above, otherwise 

 glabrous, thin and membranous, light green above, and marked 

 with pale-coloured dots ; lamina about 1*8 cm. long, 1-2 cm. wide ; 

 petiole grooved above, convex on the back, dilating upwards, 6'5-7 

 mm. long. 



