EUPHORBIACE.E 



485 



oblong, obtuse, almost surrounded by the auricles of the coty- 

 ledons, imbedded in the endosperm, close to the micropyle. 



Seedling (fig. 642). 



Hypocotyl erect, stout, succulent, glabrous, smooth, pale green, 

 slightly tapering upwards from 8-9 mm. thick, 3-5 cm. long. 



Stem stout, succulent, green, glabrous, shining ; 1st internode 

 ri cm. long; 2nd 2*8 cm.; 3rd 6 mm. 



Cotyledons roundish-oblong, obtuse, entire, or emarginate, sub- 

 auricled at the base, palmately seven- to nine-nerved and reticulate, 

 grass green above, paler beneath, glabrous, 6 cm. long and 5 cm. 

 wide, petiolate ; petiole 3 - 2 cm. long, dilating upwards to the lamina, 

 grooved on the upper side, with a bud in one of the axils. 



Leaves cauline, alternate, stipulate, petiolate, simple. 



No. 1. Cordate-ovate, acuminate, distantly and irregularly den- 

 tate-serrate, with the serratures mucronate, palmately nine-nerved, 

 grass green above and glabrous, except in the sinus which is slightly 

 hairy, paler beneath, with very prominent nerves ; petiole nearly 

 terete or slightly flattened on the upper side towards the lamina, 

 pale green, glabrous, 8'6 

 cm. long ; stipules small, 

 subulate, acute, almost 

 filamentous. 



No. 2. Cordate, acumi- 

 nate, somewhat angled, 

 but scarcely lobed, coarsely 

 dentate, palmately nine- 

 nerved ; petiole terete, 

 otherwise like the first. 



No. 3. Similar to, but 

 smaller than the second. 



Jatropha podagrica, 

 Hook. (fig. 643). 



Hypocotyl thickened 

 upwards from 5 mm. at 

 the base to 8 mm. near 

 the apex, 7 cm. long. 



Cotyledons broadly ob- 

 long, rounded at the apex, 

 obsoletely auricled at the base, palmately trinerved, 3'1 cm. long, 

 2-2 cm. wide, glabrous and smooth; petiole 1'5 cm. long, semiterete, 

 channelled on the upper side, red. 



FIG. 643. Jatropha podagrica. 

 Half nat. size. 



