10 BRITISH RAMALINAS IN THE BRITISH MUSEUM. 
tom 
Ganit conspicuous, both to touch and sight, and which shows no signs 
of disappearing or becoming thinner in even the oldest leaves. The 
branchlets also have a similar indumentum. There is some approach to 
this in the variety japonica, but it wears off more or less entirely as the 
leaves mature. Ihave little doubt that Blume’s C. mollissima, which 
states to have been introduced into Java from China, is identical; 
name is very appropriate to this apparently well-marked variety. à 
It is singular that though the authors of every European Flora in which 3 
the tree occurs to which I am here able to refer,* concur in stating that — 
the leaves of the common Chestnut are quite smooth beneath at maturity, — 
. A. De Candolle should describe them as “ vulgo subtus dense incano- - 
tomentosa.” FO 
NOTES ON THE BRITISH RAMALINAS IN THE HERBA- — 
RIUM OF THE BRITISH MUSEUM. a 
Bv tag Rev. James M. Cromaiz, M.A., F.L.S. AND G.S. 
The species and varieties of the genus Ramalina which occur in Great 
Britain and Ireland have hitherto not been sufficiently understood, ga 
; : Dr. Wm. 
there are several additions and corrections to be made, which it may % 
useful for British lichenists to here record. These are founded upon 
a 
Nylander are derived a microscopical examination of the in 
structure of the thallus and the character of the spores and spermogo 
as well as the observ of ine reactions with hydrate of 
lina, which is the number mentioned also in my xeu 
revision of the genus, however, according to Nylander's monograph, 
' less than nine species eral additional varieties and forms, 
nearly all of which 
from ante-Dillenian times till the present day now preserved in the 
Museum. 
* For Great Britain—Smith, Lindley, Hooker and Arnott, Babington j Germany : 
— Reichenbach, Bluff and Fingerhuth, Koch, Herbich ; uiia Loletou: Jug 
—Gussone, Moris, ia— Visiani; Rumeli 
