BY JOHN SHIRLEY, B.SC. 



53 



i.e t% granular gonima (gonimia) transversely placed, caerulescent or 

 yiridi-cserulescent, closely concatenated, vagina cellular, thickish, 

 longitudinally rugose, within between the gonimia finely septulate. 

 Nyl. Syn. Lich. p. 50, Vol. II. 



1. D. irpicinum, Nyl. 



Thallus 2 — Binches, pallid or whitish, semi-orbicular or sub- 

 reniform, radiately fringe-woven, circumference not at all 

 fringe-fimbriated, above virescent, towards the base (or 

 M. centre) broadly cristate-exasperate or occasionally sub- 

 irpicine ; beneath almost similar, pallid or in translucent 

 parts virescent. Scytonemoid filaments *018 — 022 m.m. 

 Nyl. Syn. Lich. p. 51, Vol. II 



Sub-Tribe III. — Amphilomei, Nyl. 



Thallus soft, monophyllo-lobate, membranaceous, whitish, 

 cinerascent or glaucescent, superficially quasi-pulverulent, 

 with true gonimia ; destitute of epithallus or cortical stratum, 

 exhibiting a lax texture wholly filamentous-noccose, com- 

 posed of fine filamentose elements, implexed and ramose. 

 Spores 6 — 8 in each ascus, uniseptate, shortly fusiform or 

 ellipsoideo-oblong. Rev. F. R. M. "Wilson in Vic. Nat 

 June, 1888. 



V. — Amphiloma. 

 Characters those of the sub-tribe given above. 

 7. A. gossypinum, Nyl. 



Thallus whitish or ashy-glaucescent, orbicular or unequally 

 sub-effuso-lobate, lobes imbricate-confluent or contiguous ; 

 circumference often sparingly white-bearded ; apothecia, 

 black or brown (width to 1 m.m.), flat, bordered by a white 

 Sy. thalline margin, within blackish; spores 6 — 8, shortly 

 fusiform, 1-septate, *01 — -017 x -0035 — -0045 m.m. ; para- 

 physes not at all distinct ; hypothecium black- brown ; hym. 

 gel. with iodine wine-red. Thalline filaments -0035 m.m. 

 thick ; gonidia not at all regular, often oblong. Nyl. Syn. 

 Lich. p. 53, Vol. II. 



Syn. — Byssocaulon filamentosum, Nyl. ; Parmelia gossypina 

 v. filamentosa, Bab. ; P. cineritia, Ach % 

 Hab. — Mt, Perry by J, Keys. 



