698 M4.. Draba. 60. CRUCIFER/E. PL ex. thai. 



4. Drala muralis. Wall whitlow-grass. 

 Stem branched; leaves ovate, embracing the stem, toothed; 



siUculce spreading, bald. 



Paronychia q. Bursan pastoris major loculo oblongo C. Bauhiui, Rail 

 Syn. 292, 2. 



Draba muralis, Lin. S, P. 897. 



Shady hills ; annual ; May. 



Stem branchy from the bottom, hairy ; hairs stellate ; 

 leaves heartsbape, hairy ; hairs simple or forked ; Jlowers 

 numerous, corymbose, changing to a very long raceme ; 

 petals not nicked ; siliculcB Hat, bald, half as long as the 

 pedicells, crowned with a very short style. 



5. Drala aiznides. Sengreen whitlow-grass. 

 Scapes naked, bald ; leaves lanceolate, linear, stiif, keeled ; 



stamens equal to the petals; style half as long as the ovary. 



Sedum petraeum, Ger. em. 514, 8. 

 Draba aizoides, Lin. Mant. 91. 

 Moenchia aizoide?, Roth Germ, 273. 

 Small rock sengreen. 



Walls and alpine rocks ; perennial; March. 



Roots fibrous, many-headed; leaves radical, rosaceous, 

 perennial, 1-ribbed, shining, fringed; fringe white, stiff; 

 scapes solitary; petals nicked, gold-yellow; siliculcs bald, 

 crowned by a long style. 



XXVIII. 4'i5. CAMELINA. Crantz. Cameline. 



SiUculce nearly ovate, many-seeded ; valves bellied ; coty- 

 ledons 'mcuxnhQni; filaments toothless. 



CamelirM sativa. Cultivated cameline. 



Silicidce reverse-ovate, margined ; stigma simple ; leaves 

 lanceolate, arrowshape. 



Myagrum, Raii Syn. 302 ; Ger. em. 273, 3. 

 Myagrum sativum, Parle. 861 ; Lin.S.P. 891. 

 Myagrum sylvestre, seu Pseudomyagrum, Park. 868. 

 Moenchia sativa, Gmelin Syst. Nat. 2, 971. 

 Camelina sativa, Crantz. Austr. 1, 17. 

 Gold of pleasure. Sesamum. 



Corn-fields, and among flax, naturalized ; annual ; June. 



Stem upright, downy, panicled at top; cor^/w^;/5 many- 

 flowered, changed to very long racemes ; petals yellow, not 

 nicked ; siUculce upright, not notched, reverse- ovate, not 

 margined. — Cultivated for the oil yielded by its seeds. 



