TRICHIA 213 



5. TRICHIA SCABRA Rost. 



PLATE IV., Figs. 4, 4 a, 4 . 

 1875. Trichia scabra Rost., Mon., p. 258. 



Sporangia closely crowded upon a well-developed hypothal- 

 lus, regular, globose or turbinate globose, orange or golden 

 brown, smooth, shining ; capillitial mass clear, golden yellow, 

 or sometimes rusty orange, the elaters simple, long, 4-5 ^ in 

 width, the spirals three or four, closely wound, spinulose, even 

 and regular, the apices short, acuminate ; spore-mass concolor- 

 ous, under the lens spores yellow, covered by a delicate fine- 

 meshed network, or simply spinulose under low power, 1012 /A. 



Generally a well-marked species, easily recognized by its 

 regular but roughened capillitial threads. Under a ^ objective 

 the spores are also diagnostic. To the unaided eye it resembles 

 the next species in both color and habit. Fructifications two 

 inches or more in length and half as wide are not infrequent on 

 the lower side of fallen stems in forests of deciduous trees. 



Not uncommon. Maine to Washington, Oregon, Alaska, and 

 south to Missouri and Arkansas. 



6. TRICHIA PERSIMILIS Karst. 



PLATE IV., Figs, i, i a, i b, i c ; 6, 6 a, 63, 6 c, 6 d. 



1868. Trichia persimilis Karst., Not. Saellsk. Fenn. Forh. IX., p. 353. 



1869. Trichia affinis De Bary, Fuckel. Syni. Myc., p. 336. 

 1875. Trichia jackii Rost, Man., p. 258. 



1877. Trichia abrupta Cke., Myxom. U. S., p. 404. 



1878. Trichia proximella Karst., Myc. Fenn., IV., p. 139. 



Sporangia globose or obovoid or irregularly spherical, shining, 

 golden yellow to tawny, anon iridescent with metallic lustre, 

 sessile ; hypothallus thin, but usually very distinct ; capillitial 

 mass ochraceous or tawny yellow, the elaters long, even, about 

 4 /A wide, the spirals four, more or less spinulose, generally 

 joined by longitudinal ridges, the apices short, tapering regu- 

 larly, anon bifurcate ; spore-mass concolorous, spores by 

 transmitted light bright yellow, marked by an irregular or 

 fragmentary banded reticulation, the bands broad, flat, and 

 pitted, 10-12 p. Plasmodium said to be white. 



