CBUCIFERJE. 



235 



20 ? Anastatica L. 1 — Short sepals and unguiculate petals subequal. 

 Siliqua short ventricose ; valves concave and transversely septate 

 inside, externally appendiculate by a very short subulate flattened 

 lamina at base, and a large oblique obtuse, internally concave, lamina 

 at apex; seeds few or 1 {oWheiranthus) in each chamberlet, orbicular or 

 elliptical compressed ; style conical ; extreme apex capitellate stigma- 

 tose. — A low annual branching herb, woody when fruiting ; branches 

 involute-connivent into a globe from drought ; leaves unequally 

 oblong subdentate petiolate, rugose subtomentose ; flowers 2 in short 

 terminal or leaf-opposed spikes (Sj/ria, Arabia, North Asia 6 ). 



b. Sistmbeineje. — Cotyledons usually incumbent. 



21. Sisymbrium L. 4 — Sepals variable, short or elongated, either all 

 equal at base, or lateral pair subsaccate. Petals usually long-tapering 

 at base. Stamens 6, free 4-dynamous. Glands variable, usually 

 small. Siliqua linear-elongated, subterete or compressed; valves 

 concave or convex, usually 3-ribbed ; septum subequal to valves, rib- 

 less or 2-ribbed ; style usually very short ; apex stigmatiferous capitate, 

 entire or shortly 2-lobed, more rarely cupulate. Seeds mostly cc, usually 

 1-, sometimes 2-seriate, immarginate subterete, usually oblong; funi- 

 cles free ; embryo usually oblong ; cotyledons equal or unequal 

 incumbent. — Herbs, usually annual or 2-ennial, glabrous pilose or 

 hoary-tomentose ; 5 radical leaves stellately rosulate ; cauline alter- 

 nate, simple or more or less incised, lobed, runcinate-pinnatifid 

 or pinnatisect, at base often auricled amplexicaul ; flowers 6 laxly 

 racemose, more rarely axillary, ebracteate or very rarely bracteate 7 



1 Rort. Cliff., 328; Gen., n. 70S (part.).— 

 J., Gen., 241.— Gjertw., Fruct., ii. 280, 1. 141. — 

 Lajjk., Diet., iii. 227; Suppl., iv. 6JS; III., t. 

 555.— DC, Syst., ii. 425; Prodr., i. 185. — 

 Endi., Gen., ii. 4895.— B. H., Gen., 71, n. 23. — 

 Rierocontis Adans., Fam. des PI., ii. 421. 



a Small, white. 



3 Spec. 1. A. Merockuntina L., Spec, 895. — 

 .Tacq., Rort. Vindob., t. 58. — R. Be., in Ait. 

 Rort. Keu\, ed. 2, iv. 79. — Desvx., in Journ. 

 Pot., iii. 169. — Boiss., Ft. Or., i. 315. — Pot. 

 Mag., t. 4400. 



4 L., Gen., n. 813. — Adans., Fam. des PL, ii. 

 417.— J., Gen., 239.— DC, Prodr., i. 190.— 

 Endl., Gen., n. 4906. — Hook. f. & Thojis., in 

 Journ. Linn. Soc, v. 156. — A. Geay, Gen. III., 

 t. 64.— B. H., Gen., 77, n. 49.— Fouen., This. 



Fac. Sc. Par. (18G5), n. 275 (incl. : Alliaria 

 An\ys., Aph ray mus Axjmz. ,ArabidopsisScnTJU., 

 Praya Steenb. & Hoppe, Cftamceplium Spach, 

 Descurainia Webb, Discurea Schuk., Drubopsis 

 C Koch, Eudema H. B., Eulrema It. Br., 

 Ruyuenbiia Reichb., Leptocarpcea DC, Norta 

 Schub., Oreas Cham. & Schltl., Orobium 

 Reichb., Pachypodivm Webb, Platypetalum 

 R. Br., Sisymbrella Spach (part.), Tonyuea 

 P^ndl., Tricholubos Tttbcz., Valarum Schub.). 



5 " Never (?) with hoary appressed 2-partite 

 seltse." (B. H., loc. ciL, 78.) 



6 Usually yellow, more rarely white, pink, or 

 purplish. 



7 The habit varies greatly in this genus, and 

 the external characters simulate many different 

 genera. Hence " the genus Sisymbrium is the 



