336 REVISION OF THE BRITISH COLLEMACET. 
in upland gatos districts, and not unfrequent in the 8.W. Highs 
ds. F.1. Polinieri (Del.), easily recognised by the bright green 
thallus, an Irish form, rare on Dunkerron and near Cork. Var. 1. 
_ erenulatum, Nyl., distinguished by the thallus being smaller, and cre- 
nato-incised at the margin, intermediate between the type an 
an) 
p: 4 a 
subtile. ce 0 L.  plietile (Ach.) The structure of the thallus 
Taylor in Hbb. Brit. age et Kew, @.n. Collema Jfluviatile, having 
the thallus smaller an hen dry, somewhat angulose, probably 
identical , with Collema Picola Smmrf., may be named f. minor, 
Cromb. Sp. 11. LZ. palmatum m (Huds.), easily distinguished from L. 
sinuatum by the revolute margins of the lacinie, most visible when 
the plant is Se ae and which are either Pater or narrower, and 
linear. Sp. 12.,° Z. tremelloides (Linn.), frequent also in most of 
Ss. pparentl 
Ireland. Sp, 13. Z. fluviatile (Huds.) — L. rivulare (Ach.) The 
structure of the thallus, so well deseribed in Nyl. Syn., p. 112, shows 
that this also must be removed from the preceding to the present 
us. 
d. stirps LZ. chloromelum. 
Sp. 14. L. chloromelum (Sw.), a vat rare species in this sane 
which ‘as uals been gathered fertile in S. W. Ireland, at Killar 
B. — pees an L. saturnine. 
pea a the 8.W. Highlan 
C. Hipciciauel Ach. a, stirps Z.Schradert. 
L. spaces (Ach.)—Confined apparently to 
Sp. 18. 
England, easily recognised from ull states of Collema pulp 
L. plicatile, by its eubfritioulose habit. Sp. 19. L. Schradert ee 
b. cis bi arisctoals. 
