BY EEV. F. E. M. WILSON. 137 



above. For tlie naming of Messrs. Simson's, Bastow's, and 

 Weymouth's specimens I alone am responsible. 



7. Geographical Distribution. — In Eev. Mr. Crombie's 

 paper are recorded many of the places where Brown collected 

 his various specimens. These places are scattered over the 

 colonies of Tasmania, Victoria, South Australia, New South 

 Wales, and Queensland. But these divisions were not known 

 to Brown, and are not noted by Crombie. There has been 

 some difficulty in determining the spots. For example, Table 

 Mountain was found to be the name of what is now Mount 

 Wellington in Tasmania, and is not to be confused with 

 Table Mount near Lake Sorell. Derwent River and Eisdon 

 Cove were of course readily recognised. Anna Maria River 

 was with some difficulty decided to be a small stream running 

 down to D'Entrecasteaux Channel in Tasmania. On the 

 other hand, Grose River was found in Flinders chart of New 

 South Wales as a tributary of the Hawkesbury. Crombie 

 seems, however, to have considered it a Tasmanian stream, 

 for one of the lichens found by Brown at Grose River is 

 named by Crombie Ephehe Tasmanica. Kingstown has not 

 been included in Tasmania, though there is a place on the 

 Derwent called Kingston, because the lichen said to have 

 been found there, Fhyscia pida, is a tropical plant, not found, 

 I believe, either in Tasmania or in Victoria. The Kingstown 

 mentioned bv Brown may probably be aii island off the coast 

 of Western Australia, 32deg. S., llS'SOdeg. E. 



Hooker, in his Flora Tasmanica, mentions as habitats of 

 lichens *' The Springs" on Mount Wellington, Cheshunt, 

 Esk, at Launceston, Macquarie Plains, Richmond, Back 

 River, and Southport. The other publications do not specify 

 the habitats. Mr. Simson collected on the Blue Tier, Mr. 

 Weymouth and friends, and Mr. Bastow and friends collected 

 in Maria Island and Tasman Peninsula, on Mount Welling- 

 ton and about Fobart, at the Gordon River, and in the neigh- 

 bourhood of Southport ; and myself about Launceston, Mount 

 Arthur, Hobart, Mount Wellington, St. Mary's Pass, the 

 Huon River, and Ulverstone. 



Class op Lichens. 



Thallus containing gonidia or granula gonima variously 

 disposed, and also very often crystals of oxalate of lime in the 

 crutaceous species. Fructification consisting of apothecia, 

 containing spores in thecae. Spermatia in nucleated con- 

 ceptacles — spermagones — distinct from the apothecia. 



The families and their principal divisions are founded on 

 the diversities of the thallus, and sometimes on those of the 

 apothecia, and even of the spermagones. 



