CRUCIFERJft. 



73 



5. Common Draba. Draba verna, Linn. (Fig. 91.) 

 (Eng. Bot. t. 586. Whitlow- grass) 



A dwarf animal, lasting but a few 

 weeks, the leaves all radical, ovate or 

 oblong, seldom above half an inch long, 

 and closely spreading on the ground. 

 Peduncles slender, erect and leafless, 1 

 to 3 or rarely 4 inches high. Petals 

 small, white, and deeply cleft. Pods on 

 rather long slender pedicels, about 3 lines 

 long, containing numerous minute seeds, 

 on stalks of very unequal length. 



On walls, rocks, dry banks, and stony places, throughout Europe and 

 western Asia, except the extreme north. Abundant in Britain. Fl. 

 early spring. Distinguished by some as a genus, under the name of 

 Erophila. A variety with remarkably inflate capsules occurs on Ben 

 Lawers. 



Fig. 91. 



XVI, CAMELINA CAMELINA. 



Erect and more or less hispid annuals, with sagitatte or auricled 

 stem-leaves, and small yellow flowers. Pod obovoid, the partition broad, 

 the valves very convex, with the midrib distinct, the edges flattened, 

 forming a narrow margin round the pod. Style slender. Seeds several. 

 The radicle incumbent on the back of the cotyledons. 



A genus consisting of two or three European and north Asiatic spe- 

 cies, perhaps all reducible to a single one, separated from Cochlearia 

 on account of their yellow flowers and incumbent cotyledons. 



Cameline. Camelina sativa, Crantz. (Eig. 92.) 



Bot.t. 1254. C.fcetida, Bab. Man. Gold of Pleasure.) 



or slightly branched, 1 to 2 feet high. Lowest leaves 

 ones sessile, clasping the stem with pointed auri- 

 entire or toothed, 1 to 2 inches long. Pods about 

 pedicels about twice that length, in a long, loose ra- 



1. Common 



(Alyssum, Eng. 



Stem simple, 

 stalked, upper 

 cles, lanceolate, 

 3 lines long, on 

 ceme. 



In cultivated and waste places, in central and southern Europe, and 



VOL. I. G 



