WAYSIDES AND HEDGEROWS, 51 



flower of spring, the "white blossomed sloe" must 

 give way to the Bullace (P. insititid), the flowers of 

 which are produced in pairs, not solitary like the sloe. 

 The leaves, when they appear, are narrower, and the 

 fruit much larger and of a better quality. Bullaces 

 are common in Rutlandshire, where a yellow-fruited 

 variety is known under the name of "White Damsons. 

 They are frequently met with in the London market 

 under this name. 



At the latter end of April the two broad, heart- 

 shaped, strongly-veined leaves which have remained in 

 sheltered corners during the winter, send up a cluster 

 of white flowers on a stem about a foot high. This is 

 " Jack-by-the-hedge," "Sauce alone," the Garlic 

 Treacle-Mustard (Sisymbrium alliarid). There is no 

 difficulty in distinguishing this plant, for on its leaves 

 being bruised it gives out a strong and unmistakable 

 odour of garlic. It has been used as a salad herb, 

 boiled as a table vegetable, and made into sauce in the 

 same manner as mint ; but it is only tolerable in the 

 absence of all other vegetables. There are two other 

 varieties found in Britain the "Wormseed Treacle- 

 Mustard (Erysimum cheirantJiodes) , the leaves of 

 which are narrow and slightly toothed. Its yellow 



