RET. J. M. CROMBIE ON AUSTRALIAN LICHENS. 301 



This list, comprehending a few plants such as Lecidea geographica, 

 Lecanora atra, &c, not present in Herb. Brown, would, in the 

 present state of lichenological science, require considerable revision. 

 The tracts of country in which the following lichens were collected 

 are New South Wales and the adjacent south coast of Australia, 

 the north and south-west district of Tasmania, or Van Diemen's 

 Land. As is unfortunately too often the case, both in the older 

 and more recent collections of exotic lichens, no saxicole species 

 are contained in Herb. E. Brown, though these would have very 

 much added to its value and importance. 



Family Ephebacei. 

 Tribe Ephebei. 



1. Ephebe pubescens (Ach.). 



The plant is apparently referable to our European species, 

 although in the absence of apothecia, and coming from a region 

 so very remote, it cannot with absolute certainty bo identified. 



On moist rocks, Grose Eiver, sparingly and sterile. Coll. Br. 

 no. 522 a, s, n. Lichen pubescens. 



Ephebe tasmanica 



Eph 



bescenti, sed thallo olivaceo-fusco lseviore, simpliciore, spermogo- 

 niis pallidis (receptaculo pallido). 



Textura sicut in E. pubescente, sed apothecia nondum visa. 

 Spermogonia in tuberculis pallidis latcralibus semiglobosis, hu- 

 mido statu subincoloribus, basi latit. O'H-014 millim. ; spermatia 

 cylindrica, longit. 0003-0-004 millim., crassit. circiter 0*0007 



millim. 



On moist rocks, Grose Eiver, very sparingly. Coll. Br. no. 



522 b 9 s. n. Lichen pubescens. 



Family Collemacei. 

 Tribe Oollemei. 



1. COLLEMA IMPLICATUM, N\jl. 



4 On trees, Derwent Eiver, fertile. Coll. Br. no. 511, 8. n. 

 Lichen fascicularis. 



2. Collema letjcocabpum, Tayl. (=(7. glaucophthalmum, Nyl. 

 Syn. p. 114). 



On the trunks of trees, Derwent Eiver, Tasmania, and S. coast 

 of New Holland. Coll. Br. no. 540 b. s. n. Lichen obductus. 



