C1WCIFER.V. 257 



flat or winged at base. Siliqua patent, orbicular obcordate or oblong, 

 indehiscent or subdehiscent, crustaceous in middle, broadly membran- 

 ous at margin ; style very short ; apex stigmatose, emarginate ; lobes 

 sometimes immersed in upper sinus of ovary. Seed l, 1 descending; 

 cotyledons incumbent or obliquely accumbent ; radicle ascending. — 

 Herbs suffruticose at base, or much branching undershrubs, some- 

 times aphyllous spinescent ; leaves alternate or opposite, obovate or 

 linear-oblong, sometimes ; flowers 2 in short subcorymbose racemes, 

 finally elongated ; rachis sometimes spinescent ; pedicels slender, 

 ebracteate {The Fast 3 ). 



73. Clypeola L. 4 — Sepals equal at base, erect or spreading. Petals 

 shortly unguiculate. Stamens 6, 4-dynamous ; filaments mem- 

 branous, appendiculate. Siliqua orbicular flat, broadly marginate, 

 entire, or unequally incised or toothed, sometimes lanate, 1 -celled ; 

 style short ; apex stigmatiferous, emarginate. Seed 1, subcentral 

 orbicular immarginate, descending from funicle; embryo much com- 

 pressed ; cotyledons accumbent. — Herbs usually annual, thin, hoary 

 with stellate down ; leaves linear entire ; flowers 5 in often short 

 racemes ; pedicels ebracteate, recurved when fruiting {Central and 

 South Europe, Mediterranean regions of Asia and Africa*). 



74. Thysanocarpus Hook. 7 — Sepals equal at base, nearly equal 

 to petals. Siliqua orbicular, ovate or obovate, much compressed in- 

 dehiscent, coriaceous in middle, 1 -celled, at margin membranous 

 winged, and entire sinuate or lobed ; lobes contracted at base, more 

 or less coalescent at apex, leaving spurious perforations. Seed 1, 

 descending, immarginate; cotyledons accumbent or obliquely incum- 

 bent. — Annual slender herbs ; radical leaves pinnatifid ; cauline 



Gen., 94, n. 128. — Lipophragma Schott & Gs-i., 93, 967, n. 126 — Bergeretia Desvx., in 



Kotsch., Analect. Hot., fasc. iii. (ex B. H., loc. Joiirn. Bot., iii. 161. — Orium Desvx , loc. cit., 



cit.). — Crenularia Boiss., in Ann. Sc. Nat., ser. 162. 



2, xvii. 181. s Small, white or yellow. 



1 Ovules 1-3. 6 Spec, about 8. Keichb., Ic. Fl. Germ., ii. 



2 White, small or minute. 1. 12. — Boiss., Fl. Or., i. 308. — Geen. & Godb., 



3 Boiss., Ft. Or., i. 33S.— Walp., Hep., i. Ft. de Fr., i. 120. — Walp., Rep., i. 146; Ann., 

 180; Ann., i. 45; ii. 46 ; vii. 173. i. 31 ; vii. 172. 



4 Gen., n. 807.— J., Gen., 210.— DC, Prodr., ? Fl, Bor.-Amer., i. 69, t. 18 A ; Ic, t. 39, 

 i. 165.— Endl., Gen., n. 4877. — Hook. p. & 42.— Endl,, Gen., n. 4940.— B. H., Gen., 94, n. 

 Thoms., in Journ, Linn, Soc, v. 178. — B. H., 127. 



VOL. III. S 



