298 



OX SEEDLINGS 



Oestrum Parqui, L'Herit. (fig. 547). 



Primary root long, stout, with fine lateral rootlets. 



Hypocotyl erect, terete, thinly pubescent, pale green. 



Cotyledons broadly oval, ob- 

 tuse, with a broad shallow sinus 

 at the apex, petiolate, obscurely, 

 alternately incurvinerved and 

 reticulate, with the midrib and 

 two laterals proceeding from 

 above the base much stronger 

 than the rest, glabrous except on 

 the midrib beneath , membranous , 

 pale green ; lamina 1'9-2'1 cm. 

 long, and 1" 5-1-6 cm. wide ; 

 petiole semiterete, flattened 

 above, pubescent. 



Stem erect, terete, pubescent ; 

 1st internode 4*5 mm. long. 



Leaves simple, entire, cauline, 

 alternate, exstipulate, petiolate, 

 glabrous except the midrib be- 

 neath and the petiole which are 

 somewhat pubescent, alternately 

 incurvinerved and reticulate ; 

 petiole semiterete, grooved 

 above, short in the seedling 

 stage. 



Nos. 1 and 2. Cordate, cus- 

 pidate, obtuse, smaller than the 



FIG. 547. Oestrum Parqui. Nat size. cotyledons. 



Cestrnm elegans, Schlecht. 



Hypocotyl erect, terete, glabrous, 8-10 mm. long, light green. 



Cotyledons ovate-rotund, obtuse, entire, petiolate, glabrous, 

 light green, without any apparent venation ; petioles short, flat, 

 shallowly furrowed on the upper side. 



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

 5-7 mm. long ; 2nd and 3rd shorter. 



First leaves simple, entire, cauline, alternate, broadly lanceolate, 

 almost acuminate, acute, hairy when young, afterwards clothed 

 with a very minute bloom, petiolate, exstipulate, green, pinnati- 

 nerved ; petioles short, furrowed on the upper side. 



