Botany. 129 



1184. E. officinalis, L. 68, A. Pastures, woods, and heaths ; 



very common. Under this single aggregate sp. B. & H. 

 include all the Euphrasias in the N. hemisphere. Wettstein, 

 in a monograph (1896), divides it up into fifty critical species, 

 14 of which, according to the late Mr. F. Townsend, occur 

 in Britain (1897). Most of the information given below has 

 been contributed by Mr. W. H. Griffin, who has followed 

 Townsend ; but there is room for much more work. Critical 

 forms or subspecies of E. OFFICINALIS (Babington's 

 " Manual ") : 



E. Rostkoviana, Hayne. Widely distributed. 

 1. Keston Common, '03. W.H.G. 



E. Kerneri, Wett. On chalk and limestone. 



1. Upper Hailing, '94. Dod teste Townsend. 



2. Grassy hillside W. of Shoreham, Village, '02. W.H.G. 



3. On Darwin's Orchid Bank, near Down, '03. W.H.G. 



E. nemorosa, H. v. Mart. Very common on the borders of 

 Woods on the chalk. W.H.G. 



1. Slopes above Upper Hailing; Dartford Heath. Dod. 

 teste Townsend. 



E. gracilis, Fries. Probably common on the heaths. 



E. Rostkoviana X brevipila, Burn et. Grem. 



1. Gravelly meadow opp. Fox, Keston, '03. W.H.G. 



teste Townsend. 



2. Rushmoor Hill, Knockholt. H. D. Hewitt teste 



W.H.G. 



3. (Similar pis. have been examined by W.H.G. from 



Cornwall). 

 Mr. F. Townsend has described six other British hybrids. 



1185. ODONTITES rubra, Gilib. (BARTSIA ODONTITES, Huds.), 78, 



A. Fields, weedy roadsides and dry waste places ; 

 common, especially on the chalk and lower Eocene gravels. 

 Semi-parasitic on the roots of grasses, with loose-pollen fls. 

 var. b.) serotina, Reich. 



1. Old chalk-pit, Northfleet, '01. W.H.G. 



(318) PEDICULARIS, L. Semi -parasites on the roots of grasses, 

 with loose-pollen fls. 



1188. P. palustris, L. (LOUSEWORT), 5 8, A. Boggy places ; 

 rather rare. 



1. Water meadows, Northfleet. Dod. 



a. Keston Mark, 1836 (perhaps a mistake for P. SYL- 



VATICA. W.H.G.) 

 K 



