358 ON SEEDLINGS 



notched at the base, plano-convex with a conspicuous, ramifying 

 and forked venation, the larger lateral veins being ascending and 

 incurved and the basal ones recurved to support the large auricles, 

 very shortly petiolate in the seed; radicle terete, straight in the 

 upper portion where it lies between the auricles of the cotyledons, 

 and in the lower portion curved to that side next the base of the 

 retinaculum, to the middle of which it is attached. 



Seedling. 



Hypocotyl erect, terete, striate or furrowed, covered with lines 

 of white hairs, 2-2 - 5 cm. above the soil. 



Cotyledons reniform, very large, deeply and widely cordate at the 

 base, glabrous except the petiole and base, deep green above, whitish 

 beneath ; lamina 2'5-2-9 cm. long, 4-2-4*4 cm. wide ; petiole sub- 

 terete or slightly flattened at the base on the upper side, hairy, 8'5- 

 3-8 cm. long. 



Stem erect, terete, slightly channelled, hairy ; 1st intemode 

 5-6 cm. long ; 2nd 6-8 mm. 



Leaves simple, cauline, opposite, exstipulate, petiolate, alternately 

 incurvinerved, hairy, crenate-serrate ; petioles biconvex, or with an 

 elevated midrib above. 



First and second pairs ovate, acuminate, obtuse. 



Strobilanthes gossypinus, T. Anders. 



Hypocotyl pubescent, 3-8 mm. long, reddish-green. 



Cotyledons coriaceous, oblate or almost reniform, rather unequal, 

 obtuse, slightly cordate at the base, entire, glabrous except on the 

 petioles, dark green, trinerved. 



Stem erect, terete, herbaceous, pubescent ; 1st intemode 3-5 mm. 

 long ; 2nd shorter. 



First leaves opposite, decussate, shortly petiolate, ovate, siibacute 

 or obtuse, densely pubescent, dark green, alternately pinnatinerved. 



Acanthus longifolius, Host. (fig. 579). 



Ovary two- celled, each ceh 1 two-ovuled ; ovules alternately super- 

 posed, amphitropous ; radicle transverse. 



Fruit a capsule, ovoid-oblong, slightly contracted or narrowed at 

 the base, and suddenly narrowed at the tip, glabrous, shining, pale 

 brown, two-celled, with each cell one- to two-seeded, dehiscing 

 elastically when dry along the dorsal suture and placentas from base 

 to apex into two pieces each of which consists of half each carpel ; 

 pericarp separating into two coriaceous layers. 



