TRICHIA 271 



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 hypothallus, regu- 

 lar, 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 /x in width, the spirals three or 

 four, closely wound, spinulose, even and regular, the apices short, 

 acuminate ; spore-mass concolorous, under the lens spores yellow, cov- 

 ered by a delicate fine-meshed network, or simply spinulose under low 

 power, 10-12 fj.. 



Generally a well-marked species, easily recognized by its regular but 

 roughened capillitial threads. Under a 1-12 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. The Plasmodium is white. 



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

 south to Missouri and Arkansas. 



6. Trichia persimilis Karst. 



Plate IV., Figs. 1, I a, I b. I c; 6, 6 a, 6 b, 6 c. 6 d. 



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



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

 1875. Trichia jackii Rost., Mon., 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, gold- 

 en yellow to tawny, anon iridescent with metallic lustre, sessile; 

 hypothallus thin, but usually very distinct; capillitial mass ochra- 

 ceous or tawny yellow, the elaters long, even, about 4 fi wide, the 

 spirals four, more or less spinulose, generally joined by longitudinal 

 ridges, the apices short, tapering regularly, 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 ii. Plasmodium said to be white. 



