26 



VI. CRUCIFERiE : ARABIDE^. 



[Dentdria, 



their valves l-nerved. A. bispida Z. Cardamme hastulata 

 E, S, t. 469. 



Alpine rocks in North Wales. Frequent on the high moun 

 tains of the west and north of Scotland, particularly the Cairngorm 

 range. Hebrides, especially Skye. 1^. es.— Plant 3—6 inches 

 high, slender, glabrous or hairy. Flowers with a purple tino-e. 



3. A. cilidta Br. (fringed R.) ; leaves somewhat toothed oval 

 glabrous ciliated, radical ones nearly sessile obtuse, those of the 

 simple stem semi-amplexicaul or rounded at the base, pods 

 nearly erect, their valves l-nerved. Turritis alpina L.: E B 

 t. 1746. 



By the sea-side at Rinville, Cunnamara, Ireland. 

 Stem, 4— 



^ . 7, 8. 



6 inches high. Boot-leaves several, oval, or obovate- 



obloncr, 



obtuse; cauline ones small. 



4. A. hi7^siita Br. (hairy R.) ; leaves all hispid dentate, cauline 

 ones semi-amplexicaul, pods erect straight, their valves l-nerved 

 Turritis Z.; £!, B. t. 587. 



Walls, rocks, and banks : frequent in many parts of England and 

 Scotland. t? • 6 — 8. — One foot or more high, erect, stiff. Stem 

 rough with spreading hairs, bearing many leaves. Petals small, white 

 erect. ' 



5. A. Turrita L. (Toiver Wall-cress): nanlmp l^nvpc nm. 

 plexicaul, pods recurved flat _ 



thickened and valves coarsely veined longitudinally not nerved, 

 bracteas foliaceous. E. B, t. 178. 



Walls of Trinity and St. John's Colleges, Cambridge; and Mag- 

 dalen College, Oxford. $ . 5. Seeds with a membranaceous mardn. 



and linear with the margins 



generally 

 Name: 



6. DENTARiAimra. Coral-root. 



Pod narrow-lanceolate, tapering; the valves flat, 

 separating elastically, nerveless. Seed-stalks broad. 

 dens, a tooth, from the tooth-like scales of the root, 



1. D. bulbifera L. (lulUferous C.) ; stem quite simple, lower 

 leaves pinnate, upper ones simple with axillary bulbs. E. B. 

 t. 309. -^ 



Woods and shady places, rare. Sussex ; Middlesex. Near Dupplin 

 and banks of the Esk, but scarcely wild. 2^ . 4, 5.— Root creeping, 

 bearing thick fleshy scales or tooth-like processes. Stem 1—1^ foot 

 high. Leaflets lanceolate as are the upper leaves, serrated, somewhat 

 fleshy ; leaves often having a small bulb in their axils. Flowers rather 

 large, purple. 



w 



7. Cabdamine Linn. Bitter-Cress. 

 Pod linear, the valves flat, generally separating elasticallyr 



\" 



