44 CnVCIFBBM, [Beassica. 



Leaves always glabrous, green above 



glaucescent beneatb ; pods rather 



slender 6. B. Napus, var. 



dichotoma. 

 Leaves mostly in radical rosettes. 



green, hispid . , , , 7. B. Tournefortii. 



1. B. nigra, Koch in Boehl. Deutschl. M. ed. Ill, iv., 713 ,F.B I. 

 i. 156. 



'^This is the ' Black Mustard ' of commerce, the powdered husked 

 seeds of which form the chief ingredient of ordinary English mustard. 

 It is sparingly cultivated in Upper India as a garden crop. In the 

 Central Provinces it is occasionally grown as a subordinate field-crop 

 with flax, and is known there under the vernacular name *' Tikki." 



2. B. alba. Boiss. Voy. Espagne ii, 39 ; F. B. I. i. 157 ; Watt E, D. 

 Sinapis, alba L. (White Mustard). 



Earely cultivated in native gardens. Mostly used by Europeans as a 

 salad along with cress. The seed is used for the same purpose as that 

 of the preceding. 



3. B. rugosa, Prain in Bull. No. 4. {189S), Department of Land 

 Records and Agriculture, Bengal, 11. B. juncea, Hk. f. Sf T. ; F. B. 

 I. i, 157 {in part). B. ohinensis, D dhie and Fuller Field ^ Gard. 

 Crops ii, 84 ( not of Linn). Sinapis rugosa, Roxb. ; Fl. Ind. Hi, 122. 

 Vern. Badshahi-lai, chotiija-lai (Sab-Himalayan tracts.) 



Stem short in early growth, bearing a number of persistent radical 

 leaves, which form a loose cabbage-like head, afterwards elongating in 

 branches up to 6 feet, Lower Tea-ues very large, obovate, obtuse or 

 subacute, tapering into the stalk, thick and pale-coloured ; veins fan- 

 like, spreading beyond the stout midrib ; stem-leaves similar but smaller, 

 sessile, not amplexicaul. Sepals slightly spreading. Corolla a little 

 over ^ in. across ; petals bright yellow, with a palo green narrow claw. 

 Pods li-1^ in. long ; beak narrowly conical, I in. long ; valves faintly 

 beaded opposite the seeds, midrib prominent outside. Seeds 7-10 under 

 each valve, brown, finely rugose. 



Cultivated during the cold season in the Sab-Himalayan districts of 

 Kumaon and N. Oadh ; also in Nepal and eastward to British Bhutan. 

 Dr. Prain remarks that on the hills it is an early cold- weather crop, and 

 that it is grown more for the leaves than for the seeds. 



4. B. juncea. Hk. f. Sf T. Journ. Linn. 8oc. V. 170 (in part); 

 F. B. I. i. 157 {in part) ; Duthie and Fuller Field Sf Oard. Crops ii, 55, 

 t. xli ; Watt E. D. Sinapis juncea, Linn. S. ramosa, Boxh.; Fl. Ind. Hi, 

 119. S. patens, Roxh. ; Fl. Ind. Hi, 124 (B. juncea, var. agrestis, Prain). 

 Vern . Rai, harlai. (Indian Mustard.) 



A tall erect branching annual, 3-6 ft. high. Stems often tinged with 

 purple, especially at the joints. Lea-ues green, sometimes hispid beneath ; 

 the lower ones stalked, their blades 6-8 in. long, pinnatifid or sinuate- 

 lyrate ; the upper decreasing in size, with entire margins. Fi o we j-s bright 



