12 
INDEX LICHENUM BRITANNICORUM. 
13 C. crispum ( Huds .), Ach. 
* C. ceranoides ( Borr .), Nyl. 
f. 1, cristatulum, Nyl. 
14 C. concinnum, Flot. 
15 C. cheileum, Ach. 
f. 1, nudum ( Schcer .), Nyl. 
f. 2, monocarpon (. Duf, !), Nyl. 
e Stirps, C. melceni. 
16 C. granuliferum, Nyl. 
17 C. melasnum, Ach. 
f. 1, marginale (Huds.), Ach. 
2, jacobseifolium (Schrank.), Ach. 
3, gyrosum, Ach. 
* C. hypergenum, Nyl. 
18 C. cristatum (L.), Schcer. 
19 C. polycarpon (Schcer), Khr. 
20 C. Laureri (Fw., Khr.). 
C. Synechoblastus (Trevis). 
21 C. nigrescens (Huds.), Ach. 
22 C. aggregatum (Ach.), Nyl. 
23 C. fasciculare (L.), Ach. 
24 C. multipartitum, Sm. 
f. Stirps incerta. 
25 C. isidioides, Nyl. 
Genus IV. Collemodium, Nyl. 
Sp. 1 C. biatorinum, Nyl. 
2 C. microphyllum (Ach.), Nyl. 
3 C. fragile (Tayl.), Nyl. 
4 C. plicatile (Ach.), Nyl. 
f. 1, minus, Cromb. 
2, bydrocharum (Ach.), Nyl. 
5 C. fluviatile (Huds.), Nyl. 
6 C. glebulentum, Nyl. 
7 C. turgidum (Ach.), Nyl. 
/3. depressum, Cromb. 
8 C. Schraderi (Bernh.), Nyl. 
Genus V. Leptogium (Ach.), Nyl. 
* Homodium, Nyl. 
Sp. 1 L. rbyparodes, Nyl. 
2 L. tenuissimum (Dchs.), Mudd. 
3 L. humosum, Nyl. 
4 L. subtile (Schrad.), Nyl. 
f. latiusculum, Nyl. 
* L. ampbineum (Ach.). 
5 L. pusillum, Nyl. 
f. effusum, Nyl. 
6 L. cretaceum (Sm.), Nyl. 
