90, FUNGUS-FLORA. 



** Spores brown. 



Abrothallus. Parasitic on lichens. 

 Karschia. Not parasitic on lichens. 



G. Spores 2 many-septate. 

 * Spores Jit/aline. 



Patellaria. Ascophore discoid, plane; spores narrowly 

 elliptical or fusoid. 



Heterosphaeria. Ascophore subglobose ; spores elliptic- 

 oblong. 



Scutularia. Spores very long and slender, needle- 

 shaped. 



Celidium. Parasitic on lichens. 



D. Spores muriform. 

 Blitrydium. 



FIGURES ILLUSTRATING THE PATELLARIEAE, &c. 



Fig. 1, Elnjtisma punctatum, Fries, on leaf of sycamore, nat. size ; Fig. 2, 

 ascus and paraphyses of same; highly x ; Fig. 3, spores of same; 

 X 300; Fig. 4, Cryptomyces aureus, Mass., small specimen on willow 

 branch, nat. size; Fig. 5, sports of same; x 300; Fig. 6, conidia of 

 same; x 300; Fig. 7, Coccopltacidium pint, Rehm; nat. size; Fig. 8, 

 sections of same in various stages of development ; Fig. 9, ascus and 

 paraphyses of same; Fig. 10, spore of same; X 300; Fig, 11, Phrag- 

 monaevia hysterioides, Rehm ; nat. size; Fig. 12, ascus and paraphyses of 

 same; x 300; Fig. 13, Cryptodiscus microstomus, Sacc. ; niit. size; 

 Fig. 14, ascus and paraphyses of same; x 300; Fig. 15, Patellaria 

 clavispora, B. & Br. ; nat. size ; Fig. 1G, same ; mag. ; Fig. 17, sections 

 of same ; x ; Fig. 18, portion of exterior and margin of excipulum of 

 same; Fig. 19, ascus and parapliyses of same; highly x; Fig. 20, 

 spores of same ; x 300 ; Fig. 21, Scutularia citrina, Sacc. ; nat. size; 

 Fig. 22, same ; x ; Fig. 23, section of same ; x ; Fig. 24, excipulum and 

 margin of same in section ; x ; Fig. 25, ascus and paraphyses of same ; 

 highly x ; Fig. 26, spore of same ; x 300 ; Fig. 27, Patellaria loni- 

 cerae, Phil., spore ; X 300 Fig. 28, Scleroderris Houghtoni, Sacc. ; nat. 

 size ; Fig. 29, section of stroma with ascophores of same ; x ; Fig. 30, 

 uscus and paraphyses of same ; highly x ; Fig. 31, spores of same ; 



