28 6. CETICIFEE^E. 



J4. B. prcz'cox (R. Br.) ; lower 1. lyrate gradually larger 

 upwards, upper pair of lobes equalling the breadth of the sub- 

 cordate single terminal lobe, uppermost 1. pinnatijid with linear- 

 oblong entire lobes, pods patent with a short thick point. E. B. 

 1129. Fl. moderate. Raceme close. Pods long, torulose. 

 Lower 1. usually interruptedly pinnate. South of England. 

 (American.) B. V. VII. E. I. 



5. AR'ABIS Linn. Rock-Cress. 

 * Seeds in one row. 



1. A. hirsuta (Scop.); 1. hispid dentate, stem-l. truncate-auricled 

 or cordate at the base, auricles patent, pods erect narrow straight. 

 E. B. 587. St. 1 foot high, clothed with spreading mostly 

 simple hairs and many erect leaves. Sometimes the hairs on the 

 stem are adpressed and branched, or absent [var. ylabrata Sy.]. 

 Root-1. narrowed into a footstalk. Walls and banks. B. 

 VI VIII. E. S. I. 



2. A. cilidta (R. Br.) ; 1. glabrous and ciliate or hispid some- 

 what toothed nearly sessile, stem-l. sessile with a rounded base, 

 pods erect narrow straight. E. B. 1746. St. erect, glabrous. 

 L. glabrous, ciliate. Seeds without wings. St. and 1. some- 

 times hispid [var. hispida Sy.]. Rocks by the sea. Connemara, 

 Ireland. Lidstep, Pembrokeshire. B. VII. VIII. E. I. 



S. A. stric'ta (Huds.) ; 1. hispid and ciliate deeply sinuate- 

 dentate, narrowed into a footstalk, stem-l. sessile, pods few dis- 

 tant erect patent straight. j. jff.614. St. erect, glabrous, his- 

 pid below, 6 8 in. high. El. rather large. Seeds winged at 

 the apex. Limestone cliffs near Bristol. P. IV. V. E. 



4. A. alpina (L.) ; 1. clothed or fringed with 3-4-forked hairs, rosette- 

 1. sessile or narrowed downwards into a short winged petiole, stein-L 

 oblong acute amplexicaul with distinct auricles, irregularly dentate 

 sometimes with small secondary teeth. Pods spreading or curved upwards, 

 broad obtuse. Seeds roundish-oval, surrounded by a narrow membranous 

 wing. E.B. lii. Suppl. 1. 117 A. Stoloniferous. St. glabrous or hairy. 

 Pet. white about twice the length of the sep. Outer sep. gibbous at the 

 bane. Cuchulliu Mountains, Skye. Mr.H. C.Hart. K VII. Vill. S. 



5. A. petra'a (Lam.) ; /. glabrous or with forked hairs lyrate- 

 pinnatifid or oblong-ovate nearly entire with long stalks, stcm-l. 

 narrow nearly entire stalked, pods spreading slender straight. 

 E. B. 469. St. erect or decumbent, 3 8 in. long, alabrous. El. 

 large, white tinged with purple. Seeds oblong with a straight 



