Brassica 



CRUClFERiE 



241 



Stem 1-2^ ft. bigh. Leaves lower broadly obovate, often with small 

 lobes at the baKe, coarsely toothed, 8-28 cm. 1. ; middle oblong, toothed ; 

 upper linear-lanceolate, entire, 4-8 cm. 1. Flowers 6-9 mm. 1. Sepals 

 4-5 mm. 1. Petals light yellow. Siliqua 3-3-5 cm. 1., 1-5-2 mm. br. ; 

 style slender, 3-6 mm. 1.] 



B. Fruit a silicula with the partition very narrow. 



3. CAPSELLA Medik. 



Branching herbs. Radical leaves rosulate. Flowers small, 

 white, in terminal and axillary racemes, with the petals some- 

 times changed into stamens. Sepals equal at base. Silicula 

 laterally compressed, valves boat-shaped, keeled. Seeds many, 

 in two rows ; cotyledons incumbent. Shepherd's Purse. 



Species 5, natives of temperate regions and of mountains in 

 the tropics. 



C. Bursa-pastoris MoencJi. Method. 271 (1794); Macf. Jam. 

 i. 27; Griseb. Fl. Br. W. Ind. 14. Thlaspi Bursa-pastoris L. Sp. 

 PI. 647 (1753). (Fig. 100.) Type in Herb. Linn, 



Fig. lOO.—Capnella Burga-pastoris Moench. 



A, Plant X J. F, Silicula with one valve removed x 2. 



B, Bud X 6. G, Seed x 8. . _ . ' . 



C, Flower x 6. H, Ditto cut across X 8 ; c, cotyledon ; 



D, Pistil aud stamens X 1?. r, radicle. 



E, Silicula X 2. (After Sturm.) * ; 



In fl. all the year ; waste places and coffee fields in the mountains, 

 Macfadyen. — A weed of cultivation, found in temperate regions and in 

 mountains in the tropics. 



