98 ON SEEDLINGS 



petiolate ; petioles semiterete, channelled above, dilated and am- 

 plexicaul at the base, tapering upwards. 



No. 1. Palmately tripartite with nerves running into the primary 

 and secondary segments ; middle segment cuneate, trifid with obtuse 

 mucronate secondary segments ; lateral segments obliquely cuneate, 

 twice bifid, with oblong obtuse mucronate secondary segments. 



No. 2. Palmately tri-partite or -sect ; middle lobe rhomboid- 

 cuneate, trifid with its middle segment again trifid, and its lateral 

 ones unequally bifid ; lateral lobes obliquely cuneate bipartite with 

 the anterior segment unequally trifid and the posterior segment 

 unequally bifid. 



No. 3. Trisect ; middle lobe broadly palmately-cuneate and 

 divided almost like the first leaf ; lateral lobes similar in outline, 

 smaller and somewhat less cut. 



No. 4. Multisect. 



Delphinium Ajacis, L. 



Primary root as in D. Staphysagria. 



Hypocotyl as in D. Consolida. 



Cotyledons elliptic-oblong, obtuse, terminated by a glandular 

 mucro, very similar to those of D. Consolida, but with a longer 

 petiole, of 10-17 mm. 



Stem as in D. Consolida. 



Leaves as in D. Consolida. 



No. 1. Tripartite ; segments elliptic or oblong-elliptic, entire, 

 tipped with a pale-coloured glandular mucro, the terminal one 

 broadest, and the lateral one sometimes bifid. 



No. 2. Similar, larger, generally with the lateral, sometimes with 

 all the segments bifid. 



No. 3. Palmately trisect ; middle segment rhomboid-cuneate, 

 deeply trifid ; lateral segments obliquely cuneate, obliquely or un- 

 equally bi- or tri-partite. 



Nos. 4 and 5. Trisect ; middle segment cuneate, palmately 

 trisect and sparingly lobed lateral lobes or segments obliquely 

 bisected with their anterior halves deeply trifid, and their posterior 

 halves deeply bifid. 



NOTE. One or both of the cotyledons are sometimes bifid or 

 parted to the very base, simulating three or four cotyledons in the 

 latter cases. 



Aconitum cernuum, Koell. 



Hypocotyl short and subterranean. 



Cotyledons oval-oblong, acute, entire, glabrous, light green, 



