NOTES ON EPILOBIA. 143 



as independent plants. It grows in sandy ground by the River 

 Homem, and more sparingly in very dry places on the hill- side by 

 the track leading from S. Joao do Campo to Caldas do Gerez. The 

 species is well figured in the Boletim da Soc. Brot. for 1888. 



NOTES ON EPILOBIA. 

 By the Rev. Edward S. Marshall, M.A., F.L.S. 



A PERUSAL, last spring, of Professor C. Haussknecht's 'Mono- 

 graphie der Gattung Epilobium ' (Gustav Fischer, Jena, 1884), led 

 me to believe that work still remained to be done at our British 

 Willow-herbs. I therefore collected such specimens that came in 

 my way as looked at all remarkable, and recently sent them, 

 together with some others gathered by Messrs. W. F. Miller, W. W. 

 Reeves, &c., for determination at Weimar. The results are en- 

 couraging, and I hope to continue these investigations in the 

 coming season. 



Dr. Haussknecht, in his Introduction (p. vi.), remarks: — "Of 

 constant varieties I have hitherto met with no instances." Accord- 

 ingly, in the Monograph, variations fi'om type are ranked as 

 ' forms ' only. 



The existence of hybrids in the genus can hardly be doubtful to 

 anybody who has examined the question. Those gathered by myself 

 were sent without any suggestion as to their origin, and in every 

 case but one I have satisfied myself since of the occurrence of both 

 parents in the locality. 



Ej)ilohium collinum Gmel., already detected by Mr. Druce in Perth- 

 shire, is quite likely to occur in various hilly districts of England and 

 Wales. E. lactifiorum Hausskn., E. Hornenmnni Reichb., and E. 

 davuricum Fischer, are Scandinavian ]3lants not yet known as 

 British, but any (or all) of them may be reasonably expected in 

 Scotland. 



E. ANGUSTiFOLiUM L., f. hracliycavpa (E. hrachycarpumljeightoji). 

 Near Tilford, Surrey ; apparently native. I have never seen 

 this plant cultivated anywhere in the neighbourhood ; and the 

 assertion that it is only a garden stray in this country seems 

 to lack proof. Monograph, pp. 41-2 : — " That the two alleged 

 sj)ecies [E. macrocarpum and E. brachycarpum] had no claim to 

 recognition, might have been foreseen ; for every possible inter- 

 mediate between the reputed points of difi'erence is to be met with. 

 The sterility of the one form [brachycarpum] , which is adduced as an 

 argument in favour of its naturalisation, is only due to the absence 

 of suitable insects to fertilize it ; an occurrence also frequently 

 observed with us." 



E. PARviFLORUM Schreb., f. aprica. Tilford and Witley, Surrey. 

 I also have it from Savernake, Wilts. A form of dry x^laces, and 

 swamps where the soil is clayey or peaty. 



f. brevifolia. Chalk bank, Headley Lane, Surrey ; and garden, 

 Forest Row, Sussex ; both sent by Mr. Reeves. 



