F 
BRITISH RAMALINAS İN THE BRITISH MUSEUM. 1$. 
adnate to the rock, in Herb. E. Forster, from maritime rock, 
Polperro ede Tintagel, P Ooravall and between Brighthelmstone and Ports- 
glo! ec 
crine e grum oem in Herb. Crombie. Intermediate between this and 
the seen and probably the typical form, is a ei Exs. 47, “ top of 
Roseberry, Cleveland," and Leight. Exs. 73, “ Near Thirsk, Yorkshire. 
Though frequently found inland, it nevertheless there, ike many other 
plants, indicates on the old sea rocks Ls Mc m origin. 
6. R. pollinaria, Ach. L. U. p. 6 ban Syn. i. p. 296; Recog. 
Mon. Ram. p. 52. Dill Musc. t. $1; f. 57, A and B; Mudd, Man. 
p. 74; Leight. Lich. Fl. p. 95, not E. B. t. 1607.—But few specimens 
of the true plant occur in Herb. Brit. Mus., in consequence of R. ever- 
niodes, Nyl., having previously been confounded with this species. Thos 
which occur are almost entirely referable to f. humilis, Ath., which is 
E. Forster, from Walthamstow, Essex, and its neighbourhood, and in 
Herb. Crombie, from near Tunbridge Wells. The form elatior, Ach., is 
represented only in Mudd’s Exs. 46 (middle specimen excluded), though 
I have it fruited in my own herbarium from near Hastings, and probably 
it is not very uncommon in England. 
(5.) Thallus usually ttes or subreticulately unequal. Cortical 
stratum amorphous or subamorpho 
++ Medullary stratum not tinged with K. 
1. R. everniodes, Nyl. Prod. Bim Alger. p. 47 ; Recog. Mon. Ram. p.5 
E. B. t. 1607, sub nom. L. polli narius.—Of this very distinct arc 
which may readily be distinguished from the preceding by “ the amor- 
phous cortical stratum, the softness and reticulate righty of its thallus,” 
there are several specimens in Herb. Brit. Mus. As a British species, it 
was only recently distinguished by myself from Nylander’s description in 
his monograph, but it is the plant figured in E. B. as above, and referr 
The specimen drawn, which is well fruited, appears in Herb. Sowerby, 
hurst. Under the name of A. pollinaria it also occurs in Herb. Salvey, 
from Isle of Wight; Taylor, from near Belfast ; pie from 
Forest; and is also the plant of Leighton's Exs. 4 , from Go pull, 
Leiceateralite. and Mudd’s Exs. 46, from Cleveland fae middle ag 
men). It is very variable in the character of the laciniæ, and I have 
specimen from near Lyndhurst in which the thallus consists of a “ iei 
large rounded lobe” (t. monophylla mihi). This spec ies is evidently the 
Di . 57, C and D, 
IV. Stirps R: scopulorum. Thallus firm, solidly corticated, subroundly 
compressed, unequal on the surface ; cortical stratum n externally amor- 
Por ia internally filamentose. 
