Lepidium.] viii. crucifer.*: (olive r). 6 { J 



A '^ ge & enus Effused through the temperate and warmer regions both of the Old and 

 JVew World. Ten species are enumerated iu the ' Flora Capensis.' 



Cotyledons 3-partite. Erect glabrous annual I. L. sativum. 



Cotyledons entire. 

 Radicle incumbent. Puberulous erect or diffuse. Leaves linear or 



lanceolate 2. Z. ruderale. 



Kadicle accumbent. Glabrous, erect. Leaves oblanceolate, upper 

 narrower 3. L. Armoracia. 



1. L. sativum, Linn. ; DC. Syst. Veg. ii. 533. An erect glabrous an- 

 nual. Leaves entire or variously lobed or pinnatisect, often with linear seg- 

 ments ; the lower petiolate, the upper linear or linear-oblong, sessile. Siliquas 

 obovate- or broadly elliptico-rotundate, emarginate (occasionally with 3 valves), 

 lightly but thickly winged above. 



Nile Land. Abyssinia, Schimper ! Kordofan, Kotschy ! 

 ommon Cress. Everywhere cultivated, and often a weed of waste places. 



2. L. ruderale, Linn. ; DC. Syst. Veg. ii. 540. A more or less mi- 

 nutely puberulous annual or, in mountainous situations, tufted perennial. 

 ?* branched erect or diffuse. Radical leaves more or less pinnatifid or in- 

 C j sed; inline linear or linear-lanceolate, incised dentate or entire. Racemes 

 wacteate. Pedicels rather exceeding or equalling the silicule, spreading, 

 uicules compressed ovate or rotundate-ovate, scarcely emarginate. Style 

 er ? short. Radicle incumbent.— L. intermedium, Rich. Fl. Abyss, i. 21. 



ile Land. Abyssinia, Billon ! Petit I 

 . er G^nea. Angola, Dr. Welwitsch ! 

 RadiM al $ enum (L. alpigenum, Rich. Fl. Abyss, i. 22). Biennial from a tufted stock. 



cie obhquely incumbent. Abyssinia, Petit. 

 of Z r Pme Varietv much resembles some Tibetian forms of L. ruderale. Three at least 

 I r™** 8 Pecies of Lepidium maintained bv Sonder in ' Flora Capensis ' are reduced to 

 - "«», linn., by Drs. Hooker and Thomson (Jouru. Linn. Soc. v. 174). 



hi h Arj aoracia, Fisch. et Meg. Index Sem. 1842, 77. An erect, 

 » r anched, glabrous herb, 1-2 ft. hi<di. Radical leaves not seen ; cauline 

 ZT! c ? ria ceous, oblanceolate, narrowed into the petiole, serrate or dentate- 

 ™te above ; the upper linear-lanceolate or quite entire Racemes erect, 

 cur acteate. Pprli^u „„..„n.- _ *i_ „;k„.,i Q o wKiVh are broadly elhptical- 



ST- Pedicels equalling the silicules, which are broadly elliptical 

 rS' SCarcel y emaiinater Style very short. Stamens 2 or 3, accord 

 hL * 1 ? cl,er an d Meyer, and Richard . Radicle accuu 

 Jt - ™ PI. Schimp. Abyss.; Rich. Fl. Abyss, i. 21 



This e m Land " Ab y ssini a. Schimper! 



y P rove a form of L. I at if o Hum, Linn. 



16 - THLASPI, Linn. ; Benth. et Hook. f. Gen. PI. i. 91. 



owS 3 sma "> erect. Silicules laterally compressed, oblong, obcordate or 

 "arrow ****&»** or rarely acute; valves keeled or winged; septum 

 ^Z:\ mVahranous > stigma entire, obtuse, subsessile (m the following 

 Ann ll Seeds 2 ~ 8 M each cell, not margined; cotyledons accumbent. - 

 nual or perennial, usually glabrous or glaucous herbs. Radical leaves en- 



