364 



ON SEEDLINGS 



Dicliptera resupinata, Juss. 



Hypocotyl erect, striated, covered with minute hairs, 8-12 mm. 

 long, light green. 



Cotyledons oblong, obtuse, emarginate, rather fleshy, unsym- 

 metrical, glabrous except on the petioles, light green, trinerved. 



Stem erect, herbaceous, striated or ribbed, covered with minute 

 hairs ; 1st internode 5-6 mm. long. 



First leaves simple, entire, cauline, opposite, decussate, petiolate, 

 exstipulate, ovate-oval, obtuse, covered with minute hairs, light 

 green, pinnatinerved. 



Peristrophe speciosa, Nees (fig. 583). 



Primary root tapering downwards, with numerous fibrous rootlets 

 ultimately superseded by strong lateral rootlets. 



Hypocotyl erect, terete, pub- 

 escent with short decurving hairs, 

 pale green, 2-2*3 cm. above the 

 soil. 



Cotyledons large, obliquely 

 and broadly rotund - obovate, 

 slightly emarginate, alternately 

 trinerved from the base with the 

 nerves incurved and uniting with 

 the midrib close beneath the 

 apical notch, petiolate, glabrous 

 except the petiole, light green 

 above, paler beneath, suddenly 

 tapered into the petiole ; lamina 

 2-3-2-7 cm. long, 1-9-2-2 cm. 

 wide ; petiole semiterete, flat- 

 tened above, dilated upwards 

 into the lamina, pubescent with 

 decurving hairs, 1-1*3 cm. long. 



Stem herbaceous or sub- 

 shrubby, erect, shallowly angled 

 and furrowed, densely covered 

 with short, decurving hairs ; 1st 

 internode 1-5-2 cm. long. 



Leaves simple, entire, cauline, 

 opposite, exstipulate, petiolate, 



unequal, alternately or suboppositely and incurvedly penninerved, 

 with the nerves becoming more slender, and forming a sub- 



FIG. 583. Peristrophe speciosa. 

 Half nat. size. 



