PAKASITIC FLOWERING PLANTS. 47 



0. major, Sra. iion L. {0. rapum, Tliuill, in Pryor's 'Flora 



Herts.') On roots of broom, etc. itorts ; BcmIs ; Bucks. 

 0. caryophi/Uacca, Sm. On Galite, Rubi, etc. South-eastern 



counties. Very rare. 

 0. rubra, Sm. On thyme. Chiefly on the west coast. Rare. 

 0. minor, Sutt. On roots of clover, etc. Herts; Beds; Bucks. 

 The three following: are probably varieties of this species: 

 O. Enjngii, Duby. On Dancus giimmifcr. South-west Coast 



and Channel Islands. 

 0. ricridis, F. W. Schultz. On Ficris, etc. South-eastern 



counties, chiefly. 

 0. Hederm, Duby. On ivy. South-western counties, chiefly. 

 0. ccerulea, Vill. {Philipcea coirulea, C. A. Mey, in Pryor's 

 'Flora Herts.') On Achillea millefolium. Southern 

 counties, chiefly. Herts, near Hoddesdon {Coleman). 

 Sub-sp. 0. arenaria, Berk. Alderney. 



Lathraa, L. Toothwort. 



L. squamaria, L. Shady places, on roots of hazel, elm, etc. 

 Herts; Beds; Bucks. 



*** Leaf-bearing Parasites. 



LORANTHACEJE. 



Viscum, L. Mistletoe. 



V. album, L. On various trees. (See above, p. 45.) Herts, on 

 lime, hawthorn, poplar, crab-apple, maple, white willow, 

 ■ aspen, apple-trees in orchards, hazel, and filbert ; Beds, on 

 hawthorn, maple, lime, and apple ; Bucks. 



Santalace^. 

 Thesium, L. Bastard toad-flax. 



T. humifusum, DC. On various plants. Dry chalky pastures. 

 Local. Herts, Sandon Heath, Royston Heath (Ford/iam) ; 

 Beds (Miss Tivi7iing, Watson's specimen) ; Bucks ( Watson, 

 ' Top. Bot.'). 



**** Twining, leafless Parasites. 



CoNVOLVULACEiE. 



Cuscuta, Tournef. Dodder. 



C. Epilinum, Weihe. Sporadic on flax. Herts ; Beds, formerly, 



perhaps now^ extinct. 

 C. europcea, L. On nettles, etc. Herts ; Beds ; Bucks. 

 C. Epithymum-, Murr. On thyme, ling, etc. Herts ; Beds ; Bucks. 

 C. Trifolii, Bab. On clover. Herts ; Beds ; Bucks. 



