202 TEfRADYN. STLia. 



16. SISYMBRIUM. 



1. S. officinale {common Hedge-Miistard) , pods subulate pu- 

 bescent close pressed to the main stalk, leaves runcinate hairy, 

 stem hispid. Light/, p. 354, andE. B. I. 735 {Erysimum off.). 



Hab. Waste places and byway-sides, plentiful. F/. June, July. ©. 



One to two feet high, branched. The deep and cut or serrated lobes 

 are not always sufficiently dccurved to be called runcinated; termi- 

 nal lobe very large, rounded in the lower leaves, oblong in the upper 

 ones. Flowers very small, pale yellow. 



2. S. Sophia {Flix-ufeed), leaves doubly pinnate a little hairy, 

 piiniules linear terminal one the longest, petals shorter than 

 thecal. Light/, p. '354. E. ZJ. /. 963. 



Ha3. \^'aste places, among rubbish, common. H.Aug. ©. 

 IVo feet high, branched. Pods linear, slender, erect, but not sp- 

 pressed, the footstalk being a little patent 



17. ERYSIMUM. 



1. E. chelranihoides {Treacle Hedge-Mustard)^ leaves lanceo- 

 late entire or slightly toothed with stellate-tripartite hairs, 

 pods nearly erect their peduncles spreading, sligma undivided 

 nearly sessile. iJr. Light/, p. 356. E. B.t. 942. ^ 



Hab. Corn-fie'ds, but not common, Sibbald. At the head of Lech 



na Gaul, in Mull, Dr. Walker. Fl. July, Aug. , 

 One foot to two feet high, branched. Flowers small, yellow. 



2. E. JUiaria {Garlick- Hedge-Mustard), leaves heart-shaped 

 petiolate dentato-crenate. Light/, p.ood. E. B. t. 796. 



Hab. Hedge-banks and waste places. Fl. May, June. S • 

 Two to three feet higli, branched. Leaves large, veined, well known 

 for their garlick-like smell. Flowers white. Pods erecto-patent. 



18. CHEIRANTHUS. 



1. Ch. /ruticulosiis {ivild IFall -flower), leaves lanceolate acute 

 hoary beneath, pubescence all sin)ple and close-pressed, stem 

 somewhat shrubby, branches angular. Sm. Light/, p. 357 

 {Ch.Cheiri). E.B.t.\934. 

 Hab. Old walls and castles, frequent. K.May. "2/- _ 

 One foot high, bushy. Leaves yellow, somewhat rigid, in which par- 

 ticulars the princijjal distinction rests betAveen it and Ch. Cheiri. Are 

 they truly distinct ? 



• ' ^ 19. HESPERIS. 



1. H. matronalis {Dame's Violet), stem erect, leaves ovato-lan- 

 ceolate toothed, limb of the petals obovate, pods erect toru- 

 lose their margins simple (not incrassated). £.5./. 731 

 {H. inodora). 



Hab. Banks and bushy places. Side of a rivulet near Glen Corse, 

 Lighff. Fields near Hol\-toA\n, h\- Glasg., seemingly indigenous, 

 Hopk. CoUington and Auchinden'ny woods, Mangh. Bank below 



