92 



ON SEEDLINGS 



Cotyledons petiolate, glabrous ; lamina oblong, obtuse, tapering 

 into the petiole, 13 mm. long, 6 mm. broad ; petiole channelled 

 above, 8' 5 mm. 



Stem annual, erect, terete, pubescent, pale green ; 1st internode 

 undeveloped ; 2nd and 3rd 3 mm. long ; 4th 1 mm. long. 



Leaves simple, cau- 

 line, alternate, exstipu- 

 late, bright green and 

 shining on both sides, 

 sparsely pubescent, pe- 

 tiolate; petioles chan- 

 nelled above, slightly 

 ridged beneath, dilated 

 and sheathing at the 

 base, pale green, pubes- 

 cent. 



No. 1. Cuneate, deep- 

 ly trifid with oblong, 

 obtuse segments. 



No. 2. Cuneate, tri- 

 partite, divisions bifid. 



No. 3. Tri-pinnati- 

 sect ; basal lobes 1-2- 

 pinnatifid; terminal lobe 

 tripartite. 



No. 4. Similar to the 

 last but rather more cut 

 up. 



The cotyledons of 

 N. integrifolia closely 

 resemble those of N. 

 sativa ; as also do those 

 of N. damascena, which, 

 however, are somewhat 

 broader in the middle. 



FIG. 132. Nigella sativa. Nat. size. 



Aquilegia chrysantha, Gray, var. truncata (fig. 133). 



Hypocotyl 3-7 mm. long, 1 mm. thick, glabrous, purple. 



Cotyledons petiolate ; petioles terete or flattened above, connate 

 at the base, 7 mm. long, purple, glabrous ; lamina ovate, obtuse, 

 entire, glabrous, faintly trinerved, glaucous blue or often tinged 

 with purple, 7 mm. long, 5 mm. broad. 



Leaves radical, alternate, ternately compound, glabrous, petiolate ; 



