1S86-S7.] in regard to the Vegetable Cell-Wall. 47 



2. The cell-wall, moreover, always contains, during the 

 life of the cell, living protoplasm, which is united to the cell 

 protoplasm. 



3. This intramural protoplasm appears in some cases 

 capable of gi'owth on its own account. 



4. Possibly the cell-wall is formed in the same way as 

 the starch grain (according to A. Meyer's and Boehm's 

 explanation). 



1 have to thank Professor Dickson and Dr Macfarlane for 

 the great trouble they have taken in obtaining for me the 

 necessary literature, and also for the use of the reagents, &c., 

 in the Winter Botanical Laboratoiy. 



Notes on the British Species of Epilobium. By 

 Arthur Bennett, F.L.S. 



(Read 14tli April 1887.) 



In 1884 Professor C. Haussknecht published an exhaustive 

 monograph of Epilobium, illustrated with twenty-three fine 

 plates. So far as I am aware, there is no reference to this 

 work in our Floras that have appeared since ; and as Pro- 

 fessor Haussknecht \'isited this country to study our herbaria, 

 I thought a few notes on the result of that study might 

 interest our botanists, as well as urge them to observe the 

 genus further, w^hich evidently will repay careful examination 

 in Britain. 



Hybrids are largely noticed in the monograph, and the 

 following references to them in our works may be useful: — 

 Briggs' Flora of Plymouth, p. 154 (1880). 

 Eeview of same, in Journal of Botany, p. 284 (1880). 

 Briggs, in Journal of Botany, p. 308 (1881). 

 Ptev. M. Eogers, he. cit, p. 104 (1886). 



I have gone through the monograph, and jotted down 

 what seemed of most interest, in the sequence that he 

 arranges the species. 



1. Epilohium angitstifolium, L. 



Under this he accepts our plants as — 



Var. n. Irachycarpa. E. hrachycarpum, Leighton, Ann. 

 Nat. Hist, viii. p. 401. 



Var. o. maerocarpa. E. macrocarpum Stephans, loc. cit. 

 p. 170. 



