BRITISH RAMALINAS IN THE BRITISH MUSEUM. 11 
A. Spermogones in. pale or colourless conceptacles. | 
I. Stirps R. gracilis. Thallus attenuated, reed don: peru or 
somewhat, an angulose or narrowly comp ; cortical s composed 
of filamentose elements.— Of this division but a single iaria occurs, and 
that very. sparingly, in Britain, belonging to its second subdivision, viz., 
tt Medullary stratum not tinged with K. 
1. R. thrausta (Ach. L. U. p. 596, as Alectoria), Nyl. Syn. i. p. e 
Recog. Mon. Ram. p. 18; Leight. Br. Lich. Fl. p. 94, as var. of R. ca 
caris, but not Mudd, Man. p. 73.—Following the description of Madd, 
this species has been nearly always confounded in this country with a var. 
of R. scopulorum, and all the localities given in Leighton's Lich. Fl., and 
Mag. Na 
in his paper in Ann. an t. Hist., are, with one exception, ir cor- 
ct. A single specimen, the only one gathered, or 2 ne preserved, 
occurs in Her us., “on tap soil above g, coast o 
detected on old Firs in our northern highland forests, its usual habitat in 
Scandinavia. 
II. Stirps R. fraxinee. Thallus uiios, more or less longitudi- 
nally striato-nervose or subcostato-unequal 
(a.) Cortical stratum composed of filamentose elements. Of this divi- 
sion, there occur the following species and varieties belonging to its 
second esrb scons viz., 
++ Medullary stratum not tinged with K. 
2. R. pire Dum Fl. Germ. p. 139), Nyl. E. i. p. 292, pro p: 
Recog. Mon. Ram. —R. calicaris var. canaliculata (Frs.), Mudd> 
Man. p . 18; Leight. Br Lich. p. 92.—Of this common species, there are 
a goodly number of specimens in Herb. Mus. Brit. from various parts s of 
the country, though in the older herbaria, as Budile s and Pulteney’s, it 
is not distinguished or localized. It appears to be generally distributed 
and plentifully m iei up the country, and is very abundant in the 
more open parts of the New Forest. From this a oeil a somewhat un- 
usual state, with the "acinis ut attenuated, appears in Herb. Crombie, 
sub nom. f. attenuata. A sing arly ceespitose it Poa in which the 
laciniz are very short anc crowded, ** from Swanston Wood," near Edin- 
burgh, in Herb. J. Sadler, is apparently either a very young or pa 
state of this plant. Mudd's Exs. 44 (canaliculata), “from Airyholme 
Wood, Cleveland,” is Maur iic. ; 
Var. subampliata, Nyl. . Mon. Ram. p. 34, “ with broader laciniz 
and the appearance of A. frazinea, but with the straight spores of R. cali- 
caris." Of this there is a single specimen “from near Lyndhurst, New 
Forest," in Herb. Crombie ; and Leighton, in Ann. any Mag. Nat. Hist., 
also mentions it as collected in Yorkshire by G. Dixo 
Var. subfastigiata, Nyl. l. c., “ similar in n general 2 RR to R. fasti- 
giata, but distinguished by its straight spores,” also mentioned as British 
by Leighton, does not appear to occur in Herb. Mus. Brit. so far as I 
i examin 
ole farinacea P Sp. Pl. ed. i. p. 36), Ach. L. aS p. 606 ; Nyl. 
Bee Mon. Ram. p. 34. Dill. is t. 23. f. 63 : Lichen farinaceus, 
