28 THALAMlFLORiE. 



The hedge mustard has been celebrated in medicine as a diur- 

 etic, detersive, and expectorant. It has been employed as a 

 remedy for asthma and hoarseness, and hence its French name 

 of Herbe aux cJianteurs. Dr Cullen recommended a syrnp pre- 

 pared by boiling equal quantities of the juice and sugar or 

 honey, as almost a specific for habitual hoarseness. The plant 

 when bruised acts as a rubefacient. Goats and sheep are tlie 

 only animals partial to it as food. 



VI. Senebiera. TJ^art-cress. 



Poueli didymoiis, without valves or wings : stigma 

 sessile : cells 1-seeded. Cotyledons linear, incumbent, 



(oil). 



Named in honour of Jean Senebier of Geneva, author of 

 several works on Vegetable Physiology. 



1. Senebiera pinnatifida. Lesser T^aii-O'es.s. 



Leaves pinnatifid, lobes oblong toothed or sub-in- 

 cised, silicules compressed didymous emarginate at the 

 apex (to the glass) reticulated. 



Coronopus didyma, Smith et Hooker — Senebiera pinnatifida, 

 De Cand. Si/st. II. 523. 



HAB. Common in Port-Royal and St Andrew's mountains. 

 . FTj. Throughout the year. 



This plant is to be found in almost every part of the globe. 

 De Candolle suspects that it must have originally been a native 

 of America, and that it has become disseminated through En- 

 rope by accident, or from escaping from some garden. Hence 

 it is unnoticed by the elder botanists, and even now it is prin- 

 cipally found near the sea-shore or in the vicinity of botanic 

 gardens. It is very abundant in the mountain districts of our 

 own Island. The early leaves MJiich are radical, and much 

 larger than those of the stem, aiford when young an excellent 

 salad, much superior to those of the garden cress, whicli they 

 resemble in taste. 



VII. Lepidium. Pepper-wort. 



Pouch with the cells one-seeded: valves keeled. 

 Petals equal. Cotyledons incumbent (Oil), rarely 

 accumbent, ( O = ). — Brown. 



Name, from >.sa/; a scale; the little pouches resembling a 

 scale in furni. 



