MATTHIOLA. CHEIRANTHXJS. 21 



30. Senbbibba. Pouch broader than long, somewhat kidney- 

 shaped, entire at the end, or notched above and below and 

 almost 2-lobed, not bursting. Cells 1-seeded. 



Suborder IV. NUCUMENTACEiE. 



Pouch (silicle) scarcely dehiscent, often 1-celled, owing to the 

 absence of the dissepiment. 



Tr. XI. ISATIDEM. Cotyledons incumbent. 



31. IsATis. Pouch laterally compressed, 1-celled, 1-seeded; 

 valves keeled, eventually separating. 



Suborder V. LOMENTACE^. 



Silicle or silique dividing transversely in single-seeded cells, 

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



Tr. XII. CAKILINEjE. ' Cotyledons accumbent. 



32. Cakilb. Silicle angular, of two 1-seeded indehiscent 

 joints, u])per joint deciduous with an erect seed, lower per- 

 sistent seedless or with a pendent seed. 



Tr. XIII. RAPHANE^. Cotyledons conduplicate. 



33. Crambe. 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. 



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

 smooth and indehiscent, or moniliform and dividing trans- 

 versely into 1 -seeded cells, lowermost cell barren imperfectly 

 2-valved stalklike. 



Suborder I. Siliquosa. Tribe I. Arabidea. 

 1 . Matthiola R. Br. Stock. 



1. M. incana (R. Br.) ; st. shrubby upright branched, 1. lan- 

 ceolate entire hoary, pods "cylindrical without glands." — E.B. 

 1936. R. ii. 45.— Fl. of a full purple.— Cliffs in the Isle of 

 Wight. P. V. VI. Hoary Stock. E. 



2. M. sinuata (R. Br.) ; st. herbaceous diffuse, 1. oblong 

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

 — E. B. 462. R. ii. 46. — Fl. purple. — Sandy sea-coasts of Wales, 

 Cornwall, Wexford and Jersey. B. VI.— VIII. Sea Stock. E.I. 



2. Cheiranthtjs Linn. Wallflower. 



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

 bipartite adpressed hairs, pods tetragonal.— JS. B. 1934. R. ii.45. 

 — Fl. yellow or tinged with red. — Old walls. P. IV. V. 



