378 ON SEEDLINGS 



placenta ; radicle terete, obtuse, ascending at the basal ends of the 

 cotyledons. 



Germination. The primary root in germination pushes out at 

 the side of the fruit through a narrow longitudinal slit between 

 two of the numerous obtuse ridges formed by the swollen vittse or 

 oil-containing cavities. The primary root and hypocotyl are already 

 stout, and the former is well furnished with root-hairs. The hypo- 

 cotyl, having elongated and straightened, pulls the cotyledons out 

 of the fruit. 



Hypocotyl woody, erect, terete, finely pubescent, pale brown, 

 about 13 mm. above soil. 



Cotyledons ovate, obtuse, petiolate, coriaceous, glabrous, tri- 

 nerved, reticulate ; lamina slightly unequal at the base, 14 mm. 

 long, 7'5 mm. broad; petioles channelled above, pubescent, 1'5 mm. 

 long. 



Stem woody, erect, terete, finely pubescent, pale brown ; 1st inter- 

 node 14-5 mm. long ; 2nd 11 mm. ; 3rd 8 mm. ; 4th 11 mm. ; 5th 

 8 mm. ; 6th 18 mm. ; 7th 14-5 mm. ; 8th 18'5 mm. ; 9th 13'5 mm. ; 

 10th 11 mm. 



Leaves compound (primary simple), cauline, alternate (first two 

 opposite), exstipulate, petiolate, pubescent on the petiole and midrib 

 above ; leaflets alternately penninerved, subreticulate, deep green 

 above with paler nerves, paler beneath ; petioles semiterete, chan- 

 nelled above. 



Nos. 1 and 2. Opposite, lanceolate, acute, acutely serrate, as are 

 all the succeeding ones. 



No. 3. Alternate, lanceolate, with a lobe on one side at the 

 base. 



No. 4. Lanceolate, with a lobe on each side at the base. 



Nos. 5 and 6. Digitately trifoliolate ; leaflets lanceolate, with 

 the terminal one many times larger than the lateral ones. 



No. 7. Imperfectly trifoliolate. 



Nos. 8-12. Digitately trifoliolate ; lateral pair small, lanceolate ; 

 terminal one lanceolate, elongate or oblong-lanceolate, many times 

 larger than the lateral ones. 



Ultimate leaves imparipinnate with eight to thirteen pairs of 

 opposite or alternate, lanceolate, acute, acutely serrate leaflets ; sessile 

 and frequently cut away at the base on the posterior side ; basal ones 

 longest, gradually becoming smaller to the uppermost pair ; terminal 

 leaflet longest of all, lanceolate, acute, acutely serrate. 



