278 THE ALPINE FLORA 



corner, whereas ochroleucum is apt to spread rank and to 

 become a nuisance with self-sown seedlings; it should also 

 be frequently divided. 



E. ochroleucum (PI. XI) is a sort of little, tufted, grassy 

 ten-week-stock, whose ascending branches (4-12 in. long) 

 are terminated sometimes by a bunch of green, hairy, 

 narrow, oblong leaves, sometimes by a stem carrying a 

 cluster of very sweet flowers, a beautiful shade of yellow. 

 May-June. Only found in rock rubbish of the Jura, from 

 the Chasseral to la Dole. E. pumilum is a low-growing 

 form (i in. high) with narrow, fewer, less-toothed and 

 generally less vigorous leaves but does not otherwise 

 differ much from ochroleucum. E. helveticum also is very 

 similar. Both the latter are confined to the Alps. 



D r Hermary of Tours (Gazette JWedicale du Centre) calls 

 attention to the excellence of Erysimum as a remedy for 

 simple cases of laryngitis, and mentions that it was once 

 much used for this purpose. A great mistake has been 

 made in forgetting this, for nothing better can be used. 



Dentaria 



"Eng. : Toothwort ; Fr. : Dentaire ; Ger. : Zahnkraut. 



Flowers and leaves large; sepals erect; stigma entire or 

 slightly scalloped; pod hard, bulky, lanceo-linear, the flat 

 valves opening elastically and rolling from below upwards 

 on the ripening of the seed. 



D. digitata. A plant i 2-20 in. high, with a dentated and 

 articulated subterranean stock; leaves 5-foliate, digitate, 

 palmate, large, with a strong taste of cress; flowers large, 

 lilac-violet, in drooping terminal racemes. Mountainous 

 and woody districts of the limestone Alps and Jura. 



D.pinnata (PI. XI 1) is distinguished by pinnate, instead 

 of digitate leaves, with 5-j leaflets arranged along the 



