BY JOHN SHIRLEY, B.SC 



185 



olivaceo-nigricant, thin, lamina with hypothecium hyaline, 

 M. '05 — "06 ni.ni. deep ; paraphyses thickish ; asci 8-spored ; 

 spores in two series, hyaline and simple, -01 — 015 x *004 

 — .005 m m., elliptico-fusiform, at both ends acute. 

 Hab. — Russell River on Coccocarpia aurantiaca. 

 Lich. Beit. v. Dr. J. Muller, XXVI. 20. 



II. — Coenogonium, Lhrenb. 



Thallus effuse of subcontinuous, pellucid, obscurely articu- 

 lated confervoid filament'?, forming a cottony loosely inter- 

 woven greenish web, and representing the gonidia of other 

 lichens : upon these creep delicate hyaline, anastomosing or 

 netted filaments, analogous to the hyphse of other genera ; 

 the cortical tissue usually found in lichens is entirely sup- 

 pressed. Apothecia orbicular, substipitate, without a border 

 or margined in the young state. 



1. C. Linkii, Ehrenb. 



Thallus of pale yellow-green felted filaments, composed of 

 cylindrical cells, -045 m.m. long and -027 — "03 m.m. thick. 

 Apothecia as if lying on the surface of the filaments, saffron 

 Sn. yellow or yellowish red ; disk flat, margin paler or concolor- 

 ous ; spores elliptic-ovate, in one series within the filiform 

 subclavate asci. 



Hab. — On trees, Maroochie and Tambourine. 



2. O. interpositum, Nyh 



Thallus pale moss green, felted, formed from depressed 

 Sn. radiating cellular filaments ; cellules subglobular, -013 m.m. 

 long by nearly the same thickness. Sterile. 



3. C. interplexum, Nyl. 



Thallus much darker than in C. Linkii, or C. interpositum, 

 thin, continuous, under the lens like a dark felting of short 

 K. hairs, here and there with lighter and less continous spots. 

 Cellules -025 m.m. long by -014 m.m. thick. Sterile. 

 Hab. — Brisbane scrubs, on bark. 



