434 BEV. J, M. CEOMBIE ON LICHENS 



Tribe Eamalinei. 



Ramalina gracilenta, Ach. 



On rocks and trees ; fertile and apparently very common. Coll. Balf. 

 nos. 2283, 2297. 



R. G., f. nodulosa, Cromb. Thallus minute, densely branched and 

 fastigiate, forming more or less rounded nodules. 



This is evidently a young or rather stunted condition of the 

 plant, presenting a somewhat singular appearance. In one speci- 

 men a single minute apothecium was visible. 



On rocks with the type. Coll. Balf. no. 229/6. 



R. farinacea, Ach., Nyl. 



On the branches (twigs) of trees ; probably common. Coll. Balf. 

 no. 2324. 



■ 



R. F., f. pendula (Schrad.). 



On the branches of trees, with the type. Coll. Balf. no. 2324 b. 



R. SUBFRAXINEA, Nyl. 



On the branches of trees ; fertile and apparently common. Coll. Balf. 

 no. 2340. 



R. CANAL1CULATA, Tayl. 



On the branches of trees ; fertile, but only sparingly gathered. Coll. 

 Balf. no. -22 10. 



R c., f. brevior, Cromb. Thallus shorter, £-1 inch : lacim* rather 

 broader. 



On the branches of trees ; fertile, but like the type, only sparingly 

 gathered. Coll. Balf. no. 2386. 



R. intermedia, Del., Nyl. 



On rocks : probably not uncommon, but sterile. Coll. Balf. no. 2284. 



Tribe Pabmeliei. 



Parmelia latissima, Del. 



On trees and rocks ; sterile, but apparently common. Coll. Balf. nos. 

 2249,2205. 



The thallus is often discoloured, probably from the action of 

 salt water. 



P. SUBCONSPERSA, Nyl 



On rocks ; fertile, only sparingly gathered. Coll. Balf. no. 2220. 



P. ATRICHOIDES, Nyl. 



On rocks ; very sparingly and infertile. Coll Balf. no. 2227. 



