205 



England, Tuckerman. Kansas, Hall. Texas, Wright. c, New 



England, Tuckerman. Georgia, Ravenel. California, Bolander. 



d] Colorado^ Herb. Sprague. California, Bolander.. The 



earlier name, simplex, Dav., recently revived, is wholly without 

 signification, which can hardly be said of the other. 



XXXII. RINODINA, Mass., Stizenb., Tuckerm. 



Apothecia scutellseform, more often zeorine ; now lecid- 

 eine. Hypothecium mostly colourless. Spores ellipsoid, 

 bilocular; rarely 4-plurilocular 5 brown. Spermatia oblong 

 or staff shaped 5 on sub-simple sterigmas. Thallus crusta- 

 ceousj lobed at the circumference in a few species; but 

 more commonly uniform. 



* Dimelcena. Thallus lobed. Spores bilocular. 



1. JR. radiata^ Tuckerm. ; thallus crustaceous-adnate, tarta- 

 reous-cartilagineous, rimose-areolate becoming radiously lobed 

 at the circumference ; glaucescent ; the hypothallus black ; apo- 

 thecia small, innate, now emergent ; disk plano-convex, finally 

 tumid, black, white-pruinose ; the thalline margin entire ; now 

 blackening; or disappearing. Hypothecium brownish-black. 



Spores short-ellipsoid, obtuse, ^ mic. Obs. Lich. 4, 1. c. p. 



173. Buellia, Lich. Calif, p. 25. " 



b. fimbriata, Tuck. ; thallus depauperate, uniform, but 

 fringed by the hypothallus. Obs. Lich. I. c. 



Rocks on the coast of California (Bolander), Tuckerman I. c. 

 1866. Apothecia O mm -, 5-Q mm ^ 8 wide. 



2. R. thysanota, Tuckerm. ; thallus adnate, verrucose-areo- 

 late, with a radiously lobed circumference ; brownish- olivaceous ; 

 apothecia small, lecanorine, sessile ; disk blackish-brown ; the 

 tumid margin entire. Spores short-ellipsoid, obtuse, ^ mic. 



Obs. Lich. 4, I c. p. 174. 



Rocks at about 7000 ft. alt., Alpine County, California, Lap- 

 ham. Coast of Oregon, W. C. Cusick in herb., Sprague. A 



marked species ; but the specimens are scanty. 



3. R. nimbosa (Fr.) Th. Fr. ; thallus membranaceous-cartil- 

 agineous, squamulose ; scales crowded more or less and coales- 



