Brassica 



CRUCIFER.E 



241 



Stem 1-2J ft. high. Leaves lower broadly obovate, often with small 

 lobes at the base, coarsely toothed, 8-2S cm. 1. ; middle oblong, toothed ; 

 upper linear-lanceolate, entire, 4-8 cm. 1. Floiccrs G-9 mm. 1. Sepals 

 4-5 mm. 1. Petals light yellow. Siliqiia 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, 

 Avhite, 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 Moencli. Method. 271 (1794); Macf. Jam. 

 i. 27 : Griseh. Fl. Br. W. Lid. 14. Thlaspi Bursa-pastoris L. Sp. 

 PI. 647 (1753). (Fig. lOU.) Type in Herb. Linn. 



Fig. IQQ.Capxella Burm-jyaxtoriH iloench. 



A, Plant y J. F, siliiula with one valve removed x 2. 



B, Bud X 6. G, Seed X 8. 



(J, Flower X 6. H, Ditto cut across x S ; c, "cotyledon ; 



D, Pistil and stamens X IJ. /, 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. 



R 



