A FLORA OP GIBRALTAR AND THE NEIGHBOURHOOD 7 



but the latter comments on its existence there in his notes. 

 III. i. Precipices at San Roque, D. By San Roque Alameda ! 



Erucastnivi incanum Koch {Brassica adpressa Boiss.). Eoacl- 

 sides and waste places; abundant ; 3-6. I. ! II. ! III. ! 



Diiilotaxis erucoides DC. Sandy or cultivated fields ; rare ; 

 1-6. Flowers white, claws violet. I. D. III. i. and ii. San 

 Roque and Algeciras, D. 



D. vircjata DC. Uncultivated and sandy ground ; rare ? 11-6. 

 Distinguished from next two by much less lobed leaves ; lobes 

 usually few and shallow, often reduced to teeth. III. i. San 

 Roque, Ball. ii. Algeciras, Clem. 



D. siifolia Kunze. Similar situations ; very common ? 11-6. 

 I cannot distinguisli between this species and the next — descrip- 

 tions hardly differentiate them. One of the two is abundant, 

 often in large masses. It varies almost indefinitely in size and 

 leaf-lobing. I. Lower parts, chiefly in grassy places ! II. ! III. ! 



D. catholica DC. Similar situations ; rare — at least in the 

 Province generally; 11-6. III. i. Between Gibraltar and San 

 Roque, Pourr. 



Baphanus Baphanistrum L. Dry open ground; abundant; 

 1-5. Not an escape at Gibraltar, as Debeaux suggests ; it is 

 obviously native over the whole region. I. ! II. ! III. ! My 1729 

 from railside near Almoraima is a large and handsome form. 



Crambe filiformis Jacq. Stony debris, usually in mountains ; 

 rare ; 5-8. III. i. South slopes of San Roque, D. ii. A single 

 plant by railway near Algeciras ! 



Bapistnim riujosum All. Fields and waste places ; abundant ; 

 3-5. Closely resembles Erucastrum incamim, except in fruit. 

 Var. glabrum Host, with glabrous fruit, occurs commonly. 

 I.! II.! III.! 



Biscittella apula L. var. microcarpa Boiss. Sandy or gravelly 

 fields ; frequent ; 2-5. Annual, flowers rather pale yellow, 

 locules Ii, lines in diameter, hispid. I. South and west slopes, 

 K., D. I found this in 1883 near Michael's Cave, but not recently ! 

 III. i. and ii. ! 



Var. megacarpcEa Boiss. {B. bcetica B. & R.). Commoner than 

 last with us, but less so elsewhere in the Province. Locules 2-2J 

 lines in diameter. III. i. and ii. ! 



B. scutulata B. & R. Heathy ground and open woods ; com- 

 mon, often very abundant; 2-5. Flowers small, deep yellow, 

 fruit smooth, locules 1 line in diameter, filaments broadly winged. 

 This and the last seldom grow together. III. i. and ii. ! Very 

 abundant in Waterfall Valley ! 



B. IcBvigata L. Heathy and rocky places in woods ; locally 

 frequent ; 3-5. Perennial, leaves thin, subglabrous. III. i. Cork 

 Wood and Alcadeza Crags ! 



Var. tomentosa Amo {B. montana Cav.). Rocky bushy ground ; 

 locally common ; 2-5. Leaves thick, pilose. I. ! 



\Ibcris gibraltarica L. Bushy rocky ground ; locally common ; 



I. contracta Pers. Similar places and bushy sandy ground; 



