A Revision of the Trichiacese. By O. Massee. 353 



convex side of the bent threads, usually furnished with scattered 

 rudimentary spinules, free tips very rare or absent ; spores globose, 

 smooth, 1 2-14 fx diameter. 



Cooke, Myx. U. States, in Ann. Lye. Nat. Hist. New York, xi. 

 n. 12, p. 405 ; Cooke, Myx. Brit., figs. 252, 255 ; Sacc, Syll, n. 1519. 



On decaying vegetable debris. Portland, Maine, U.S. ! 



In Saccardo's Sylloge, vii. part i. p. 440, n. 1519, Eostafinski is 

 quoted as the author of the present species, and furthermore the reader 

 is referred to " Eost., Mon., p. 267," for the description, whereas the 

 species is not included at all in Eostafinski's work. The above is but 

 one of the numerous inexplicable complications so common in those 

 portions of Saccardo's Sylloge compiled by incompetent assistants. 



* Hemiareyria ruhiformis, Eost., fig. 31. 



Sporangia usually fasciculate springing from a short common 

 stem, or sessile on a hypothallus, rarely an irregular plasmodiocarp, 

 brown or almost black, polished and with a metallic lustre, or opaque ; 

 mass of capillitium and spores orange-hrown ; threads of capillitium 

 brown, 5-6 /x thick, combined into an elastic net which at maturity 

 elongates considerably, carrying the apical portion of the sporangium 

 at its apex, where it remains in the form of a cap, free tips usually 

 terminated by from one to three short, smooth spines, rarely obtuse, 

 spirals flat, distant, furnished with numerous slender spines ; spores 

 globose, smooth, 10-12 /x diameter, 



a. genuina. Sporangia cylindrico-turbinate, dark brown, opaque, 

 or with a steel lustre, seated on a common fasciculate stem. 



/3. sessilis. Sporangia sessile, cylindrical or subangular from 

 mutual pressure. 



7. plasmodiocarpia. Plasmodiocarp irregular with a broad base 

 attached to a hypothallus. 



Eost., Mon., p. 262, figs. 201, 280, 231 ; Cooke, Myx. Brit., p. 67, 

 figs. 201, 230, 231; Schroeter, p. 114; Sacc, Syll, vii. n. 1512; 

 Eaunk., Myx. Dan., p. 63, t. 3, f. 15, t. 4, f. 6. 



Exsicc— Eoum., Fung. Gall., 1686 ! Fuckel, Fung. Ehen., 1438 I 

 (as Trichia ruhiformis); Cooke, Fung. Brit., 612! (as Trichia 

 Neesiana) ; Jack, Leiner u. Sitzenb. Krypt. Bad., 421 ! (as Trichia 

 ruhiformis); Sacc, Myc Ven., 962! (as Trichia pyriformis 

 Hoff"m.) ; Karst., Fung. Fenn., 700 ! 



A very beautiful and distinct species characterized by the cylin- 

 dric dark-brown fasciculate sporangia, usually with metallic tints, the 

 dense capillitium of orange-brown spinulose threads, and smooth 

 spores. Hemiareyria Ellisii closely resembles the present species in 

 colour and habit, but is sharply separated by the warted spores. 



On rotten wood, mosses, &c. Britain (Apethorpe ! Weybridge ! 

 Twycross ! Bulmer, N. Yorks ! Orton Wood, Leicester ! Wothorpe ! 

 Scarborough !) France ! Oermany ! Switzerland ! Italy ! Belgium ! 

 Denmark ; Hungary ; Finland ; Bohemia ; United States ! Cuba i 

 Venezuela ! Ceylon ! Australia ! 



