

BRITISH FERNS 
LII 
ASPLENIUM TRICHOMANES, var. INCISUM 
Mr. A. Clapham. Yorkshire. 1850. 
6 in. 
Syn. PLUMOSUM (Woll.) 
The plumose form of the species. First noticed in the British 
Herbal, 1743, without name of discoverer or place of discovery. 
Mr. Wollaston considers that the first recorded discovery was in 
Jersey, by Sherard. The following discoveries are also recorded: 
In Yorkshire by Mr. Clapham, 1859, and previously by Mr. J. 
Tatham; Cumberland, Miss Wright; Westmoreland, Mr. Wollaston, 
1870; Lancashire, S. Gibson ; Devonshire, Rev. W. S. Hore and 
R. Моше, 1869. The most remarkable “find ” was that of Miss 
Wright in Borrowdale, where it is described by Mr. Wollaston as 
having been seen by him growing in a granite fissure, and extend- 
ing nearly a yard in four or five elongated tufts, containing at 
least two hundred crowns. 



