PAPA VERACE.E 133 



Cysticapnos africana, Gaertn. 



Hypocotyl filiform, 3 or 4 cm. long, -75 mm. thick, green, with 

 reddish striae. 



Cotyledons petiolate, glabrous, blade 1 cm. long, 4 mm. broad, 

 ovate-lanceolate, trinerved, the lateral nerves sending branches 

 towards the margin only, entire, thin, glaucous ; petiole 5 or G mm. 

 long, '5 mm. thick. 



Leaves. No. 1. Including slender petiole, 1 '5 cm. long, 6-8 mm. 

 broad, trifid, glabrous, thin, glaucous. 



No. 2. Trisect, basal lobes or sections bifid. 



Ultimate leaves simple, multisect, radical and cauline, alternate, 

 exstipulate, petiolate, glabrous, glaucous, membranous ; petioles 

 more or less dilated and sheathing at the base. 



CRUCIFER^E, 



Benth. et Hook. Gen. PL i. 57. 



Fruit and Seed. In this great Order the ovary is composed 

 of two connate carpels, very rarely of three to four, as in Tetra- 

 poma, Holargidium (a monotypic Siberian genus now merged 

 in Draba), and sometimes Brassica and Nasturtium ; the ovules 

 are numerous, or few or solitary, pendulous or horizontal, very 

 rarely basilar (Clypeola) or apical (Isatis), campylotropous or 

 half-anatropous, with the raphe ventral and the micropyle 

 superior. The fruit (a pod) is short or elongated, usually two- 

 celled. 



The seeds are oblong, subglobose, or flattened and margined, 

 or winged, and exalbuminous (except in some species of Isatis), 

 the embryo occupying the whole seed. 



The embryo is rarely straight (Leaven worthia) , generally 

 more or less curved. The cotyledons are sometimes linear 

 and coiled on themselves or folded transversely (Diplocolobeae), 

 but generally broad, sometimes folded in two along their length 

 and embracing the radicle, sometimes incumbent to the radicle 

 (fig. 162), sometimes accumbent (fig. 158). 



Diptychocarpus has two kinds of pods, the upper ones, 

 like those of a Matthiola, compressed, with winged seeds, the 



