A irifvia. ] 5 1 



(Rostafinski's Synonyms.) 



Clathroidcs fiavescens, Mich., p. 214 (1729). 



Clathroides longissimum, Hall, p. 10 (1742). 



Clathrus ramosus, 13. Retz. Vet. Handl., 253 (17G9). 



Trichia nutans, Bull, t. 502, f. 3 (1798) ; Sow., t. 260. 



Stemonitis nutans, Gmel., Sys., 1467 (1791). 



Arcyria flava, Pers. Obs., i., 85 (1796) ; Grev., t. 809. 



Stemonitcs amaena, Trent., p. 222 (1797). 



Trichia clongata, Schuni. Saell., 1464 (1803). 



Arcyria ahdacca, Sclmm. Saell., 1474 (1803). 



Arcyria nutans, Grev. Fl. Ed., p. 455 (1824); Eng. Fl., v., 



319 ; Cooke, Hdbk., No. 1173. 

 Arcyria ^aliens, Wallr. in litt. 



Arcyria straminea, Wallr. Crypt. Germ., 2232 (1833). 

 Arcyo'ia nutans, c, minor, Bong., in Weinm, p. 609 (1836). 



Arcyria cinera, Mass. (figs. 137—139, and 248, 249). 



Sporangia varying from globose to cylindrical, stipitate, 

 simple or digitato-fasciculate on a common stem, wall thin, 

 smooth, grey, or yellowish, cup-like base persistent after de- 

 hiscence ; stem slender, aboiU equal in length to sporanginiji or 

 longer, straight, colour of sporangium, filled with large cells 

 that become smaller upwards; mass of capillitium and spores 

 yellowish-grey or grey ; capillitium dense, [irutriiding elastically, 

 and remaining erect, threads combined to form an irregular 

 network, variable in thickness, often smooth or minutely warted 

 towards the base, the remainder equally covered with close-set 

 short spines, or half-rings or spines arranged in a diffuse spiral ; 

 spores globose, smooth, rarely minutely granular, 7 — 9 /x diameter. 



Arcyria cinerea, Rost., Mon., p. 272, figs. 182 — 185, 193; 

 Cooke, Myx. Brit., p. 71, figs. 182—185, 193; Sacc, Syll., vii., 

 1, n. 1459. 



Arcyria 'j-jomiformis, Rost., Mon., p. 271 ; Cke., Myx. Brit., 

 p. 70. 



Arcyria stricta, Rost., Mon. Sujjp., p. 71. 



