24 6. CEirCIFEK^. 



Tr. X. ISATIDEM. 



31. IsATis. Poucli laterally compressed, 1-eelled, 1-seeded ; 

 valves keeled, eventually separating. Cotyledons incum- 

 bent, 



Suborder V. LOMENTACE^. 



Silicle or siliq^ue dividing transversely into 1-seeded cells, the 

 true silique often barren, all the seeds being in the beak. 



Tr. XL CAKILINE^. Silicle 2-jointed. 



32. Oaxilb. Silicle angular, of two l-seeded indehiscent 

 joints, upper joint deciduous with an erect seed, lower per- 

 sistent seedless or with a pendent seed. 



33. Cbambe. Silicle 2-jointed, upper joint globose with 1 

 seed pendent from a long curved seed-stalk springing from 

 the bottom of the cell, lower joint barren stalklike. 



Tr. XII. RAPHANEM. Silique linear or oblong, terete or 

 monUiform. 



34. Raphantjs. Silique linear or oblong, tapering upwards, 

 smooth and indehiscent, or moniliform and dividing trans- 

 versely into 1-seeded cells, lowermost cell barren imper- 

 fectly 2-valved stalklike. 



Suborder I. SiligmscB. Tribe I. Arabidem. 



1. Maiihi'ola B. Br. Stock. 



tl. M. inedna (R. Br.) ; st. shrubby upright branched, I. lan- 

 ceolate entire hoary, pods " cylindrical without glands." — jR. ii. 

 45.— Fl. of a full purple.— Cliffs in the Isle of Wight. P. V. 

 VI. Hoary Stock. E. 



2. M. sinudta (R. Br.) ; st. herbaceous difiuse, 1. oblong 

 downy, hwer I. sinuate, pods compressed muricated with glands. 

 — Jt. ii. 45. — Fl. purple. — South and South-west coasts, B. VI. 

 — Vin. Sea Stock. E. I. 



2. Chbiean'thtts Linn. "Wallflower, 



*1. C. Cheiri (L.) ; st. shrubby, 1. lanceolate acute entire with 

 bipartite adpressed hairs, pods tetragonal. — B.. ii. 45. — Fl. yel- 

 low or tinged with red.— Old WaUs. P. IV. V. E. S. I. 



3. Nasittr'tium B. Br. Water- Cress. 



1. N. officindle (R. Br.) ; 1. pinnate, Its. ovate or oblong sub- 



