35 



detemiined have been submitted to Dr. Stirton, of Glasgow, 

 wlio has described the new species, and that a good many 

 have also been named by the Rev. Mr. Leighton, of Shrews- 

 bury, England. 



In conclusion, it will be observed that I have not made any 

 direct reference to the Tasmanian Lichens in comparinf- them, 

 with those described here. The reason of this is that the 

 Tasmanian Lichen Flora is so very imperfectly known. 

 Forty-four genera and about 100 species are described in Dr. 

 Hooker's Flora. This is even less than the present contri- 

 bution to the Lichenology of Queensland. Amongst those 

 described we find about one third of them in the present 

 list. Sticta is also abundant in Tasmania as in New Zealand, 

 and there is generally a close resemblance in the genera and 

 species occurring in both. Dr. Hooker says that all the 

 European species are represented in Tasmania, but this I 

 think must be received with hesitation until a better census 

 of the island is made. It is certain that a complete list of 

 Tasmanian Lichens is one of the most interesting botanical 

 desiderata. 



A FEW QUEENSLAND LICHENS. 



Dr. Nylander's Arrangement. 



Family I. — Collemacei. 



Thallns black-brown or olive-green, often su1)-gelatinous ; 

 gonidia without a cellular membrane, usually traversing 

 the thallns in moniliform lines ; apothecia often red, white, 

 or pale inside. 



Tribe Lichinei. — Thallns shrubby. Ohryzimi scahrosiim, 

 Stirton ; parasitic on Collema ; on trees, l2:)swich. 



Tribe CoUemei. — Thallns usually horizontal, foliaceoiis, 

 lobed. Collema hijrsinum, Ach.; on trees in damp scrubs. 



Lejptocjium diaj^hantim, Mont. 



L. jpliyllocarpum, var. isidiosum. 



L. tremelloides, Fr. var. cceruleum, all abundant on trees and 

 rocks in damp scrubs. 



Myriangium Durcdi, Mont., a dark spot-like sj^ecies on 

 twigs of trees, found in dense scrubs. 

 Family IL — Lichenacei. 



Thallns variously coloured, not soft or gelatinous ; gonidia 

 with a cellular membrane. 



Series Cladodiei. — Thallus usually erect ; apothecia ter- 

 minal on erect podetia, usually without a border; spores, 

 often 8 in an ascus, oblong, rarely elongate and septate. 



