THE VICTORIAN NATURALIST. 61 



Parmelia subcoerulea. Wilson, sp. nov. 



Parmelia albata. Wilson, sp. nov. 



Parmelia tiliacea. Acharius ; var, concentrica, Leight 



Parmelia Kamtschadalis. Eschw. 



Pamelia colpodes. Acharius ; var. sphaeroidispora, Wilson 



Theloschistes velifer. Wilson, sp. nov. 



Physcia astroidea. Clemente 



Physcia confluens. Fries. 



Physcia nodosa. Wilson, sp. nov. 



Psoroma blatorinum. Wilson, sp. nov. 



Psoroma contortulum. Wilson, sp. nov. 



Psoroma lineare. Wilson, sp. nov. 



Pannaria molybdodes. Wilson, sp. nov, 



Pannaria cheirolepis. Wilson, sp. nov. 



Pannaria parmeliae. Wilson, sp. nov. 



Pannaria thraustolepis. Wilson, sp. nov. 



Amphiloma lanuginosum. Acharius 



Biatora botyriza. Nyl. 



Lecidea myriocarpa 



Platygrapha albo-vestita. Knight 



Arthonia pardalis. Wilson, sp. nov. 



Chiodecton encephalodes. Wilson, sp. nov. 



Trypethelium subumblicatum. Knight. 



A DESCRIPTION OF FORTY-ONE VICTORIAN 

 LICHENS NEW TO SCIENCE. 



By Rev. F. R. M. Wilson. 



( Read before the Field Naturalists' Club of Victoria, wth March, 



1889.; 



1. Collema congesium. Wilson, spec. nov. 



Thallus small (to i in. diam.), black, cartilaginous, difformi- 

 lobate ; lobes roundish, margin elevated, thickened, crenate. 

 Apothecia somewhat large (to 2 mm. diam.), crowded together 

 and covering the centre of the thallus, pallidly or obscurely 

 rufous or black, plane with thickish thalline margin, at length 

 convex and irregular and margin withdrawn. Spores cylindrical 

 or ellipsoideo-cylindrical, sometimes rather curved, simple or 

 uniseptate ('017 mm. long, "0035 thick). Paraphyses thick, 

 inarticulate. Gel. hym. blue with iodine, thecse intensely so. 

 Granula gonima in sacs, two or three or more in each, not monili- 

 form. Habitat on mosses, &c., on maritime calcareous rocks. 



2. Collema quadriloculare. Wilson, spec. nov. 



Thallus fusco-olivaceous or black, membranaceous, adhering, 

 complicato-lobate, lobes thicker at margin and crisped, Apothecia 



