163 



THE LICHEN FLORA OF QUEENSLAND, 



7. L. contigua, Fries. 



Thallus thin or crustaceous, hoary, pale glaucous, contin- 

 uous, reticulate-rimose, smooth or rugose. Apothecia 

 innate, black, plane, albo-pruinose ; margin thin ; hypoth- 

 ecium black-brown ; spores simple, oblong-ellipsoid, colour- 

 Sn. less, -015 — -019 x -0075 — '009 m.m. ; paraphyses with 

 tips indistinct, very dark-brown. Spermagonia at the 

 borders of the thalline lacinia? ; sterigmata and spermatia 

 varying in form and size. 



Syri. — L. platycarpa, Ach., L. petra?a, Tayl , L. speirea v. 

 hydrophila, Fries. 



8. L. subnubila, Stirton 



Thallus thick, continuous, pale glaucous, or where worn 

 an ashy green, rimose-areolate, medullary layer white. 

 Apothecia black, sessile, innate, somewhat concave or flat, 

 Sn. with rather prominent rusty-black margin ; epithecium 

 thick, mealy white ; spores 8, simple, colourless, ellipsoid 

 or fusiform-ellipsoid, *014 — *02 x 007 — 009 m.m. ; par- 

 aphyses crowded, distinct, filiform, with brown agglutinate 

 apices ; hypothecium brown or black-brown. Hym. gel., 

 with iodine intensely blue. 

 Hab — Fassifern, on rocks. 

 Dr. Stirton, Pro. Roy. Soc. Vic, Sept., 1880. 



9. L. confluens, Fries. 



Thallus thick, uniform, simple, smoke-coloured or greyish 

 white, very slightly rimulose-areolate, tartareous, contin- 

 uous, smooth or slightly rugulose, etfuse or sub-determi- 

 nate ; hypothallus black. Apothecia very black, naked^ 

 never greyish-pruinose, appressed, flat, thinly margined or 

 M. immarginate, rarely convex, crowded or scattered, fre- 

 quently confluent ; margin at times flexuose ; disk smooth, 

 soft and velvety ; hypothecium dense, nigro-fuscous ; spores 

 8, colourless, ellipsoid, simple, half the size of those of 

 L. contigua. 

 Hab, — Toowoomba. 



