28 6. CRUCIFER^. 



2. D. muralis (DC.) ; St. herbaceous simple hispid and leafy at 

 the base, 1. almost glabrous ovate -lanceolate sinuate-dentate or 

 pinnatifid, pet. roundish ovate with a short claw. — E. B. 10£0. 

 Sinapis Sm.— Pedicels as long as the flowers. Pet. abrupt or 

 emarginate. L. often blunt, never very acute, usually all col- 

 lected about the base of the stem. Branches all springing from 

 the base. — Waste ground. A. VIII. IX. 



Suborder II. Latisepta. Tribe IV. Alyssinea. 



16. Alyssum Linn. Madwort. 



1. A. calycinnm (L.); herbaceous hoary with starry pubes- 

 cence, 1. obovate-lanceolate attenuate below, pods orbicular stel- 

 late-pubescent, calyx persistent, filaments all toothless, shorter 

 ones from between 2 setaceous processes. — E. B. S. 2863. R. 

 ii. 18. — Cells of the pod 2-seeded. Pet. yellow, becoming at 

 length white. — Grassv commons, S. ; ploughed land, E. See 

 Phytol. ii. 284. A. V. VI. E. S. 



\_Farsetia. incana (R. Br.) ; seeds 6 or more in each cell, pods 

 pubescent subventricose. — Near Lewes.] 



17. KoNiGA Adans., R. Br. 



f*l. K. maritima (R. Br.); procumbent, hairs bipartite, 1. 

 linear-lanceolate acute, pods oval pointed glabrous. — E. B. 1729. 

 R. ii. 18. Alyssum Sm. — St. rather woody below. Fl. white, 

 sweet-scented. — Naturalized near the sea. P. VIII. IX.] 



18. Draba Linn. Whitlow-grass. 



1. D. aizoides (L.); scape leafless glabrous, I. linear rigid 

 acute heeled glabrous ciliate, stam. equalling the slightly notched 

 petals, style as long as the breadth of the pouch. — E. B. 1271. 

 R. ii. 15. — Fl. bright yellow. L. fringed with rigid hairs densely 

 collected into cushion-like tufts. — On rocks and walls at Pennard 

 Castle near Swansea. P. III. IV. E. 



2. D. rupestris (R. Br.); scape leafless or with 1 or 2 leaves 

 pubescent, I. lanceolate flat stellately pubescent, stam. shorter 

 than the slightly notched petals, style short. — E. B. 1338. D. 

 hirta Sm. — Pouch oblong-oval, sHghtly hairy. St. very short, 

 branched, each branch bearing a dense tuft of leaves and 1 — 3 

 shortscapes. Fl.small. L. mostly entire. — Tops of the Highland 

 mountains, rare. P. VII. g. I. 



3. D. incana (L.) ; stem-l. several, 1. lanceolate stellately pu- 

 bescent toothed, pet. twice as long as the calyx entire, pouch 



