1890.] NATURAL SCIENCES OF PHILADELPHIA. 193 



mm. in diameter. Color of sporangia, a dull tawny brown above, 

 shading to a dark brown at the base. Stipes uniform in dianxeter, 

 and equal in height to the diameter of the sporangium, brown or 

 brownish-black in color, longitudinally rugose and separated from 

 the cavity of the sporangia by the intenial layer of the sporan- 

 gium wall. Spores and capillitium concolorous, of a bright yellow 

 color in mass. 



Elaters cylindrical 8.5 to 4 //. in diameter, terminating gen- 

 erally in a smooth elongated end 10-12 ,a. long, which is 

 either sharp or blunt, straight or curved to one side. Spirals four 

 in number, non-spinulose, winding more or less unevenly, with inter- 

 spaces as wide or wider than the thickness of the spirals. Spores 

 11.5 to 12.5 //. in diameter delicately but distinctly warted. 



Adirondack Mts., New York. 



This Trichia is more nearly allied to some of the forms of Tr.fragilis 

 than to any other species. There seem, however, to be sufficiently well- 

 marked specific differences. In addition to the different external char- 

 acters, the elaters are undoubtedly cylindrical in a majority of the 

 specimens. Occasionally individual sporangia are found in which the 

 elaters are a little thicker in the center, narrowing slightly toward the 

 ends, but even these exceptions terminate abruptly in the same form of 

 ends as the true cylindrical elaters. Occasionally also, as with all 

 Trichias, sporangia will be found in which the elaters are branched 

 or distorted, or have a tendency to bulbous expansions near the ends 

 or in their course, but these are abnormal and exceptional. The speci- 

 mens distributed under this number (2495) were collected in August, 

 1889, with a few exceptions. The unusually wet season had the 

 eflTect of rendering many of them much darker in color than is in- 

 dicated in the foregoing specific diagnosis, which was drawn from 

 types developed and collected under the most favorable conditions. 

 Trichia erecta n. sp., No. 2496. 



Sporangia stipitate, usually simple, occasionally double or triple 

 and very rarely fasciculate, with a cluster of 6 to 8 on a single stipe. 

 Single sporangia globose or globose-turbinate * to I of a mm. in the 

 transverse diameter. 



Color of sporangia a dark nut brown, which is uniform below, but 

 checkered or broken above into irregular patches with broad septa 

 of a bright yellow color. 



Stipes about 1 mm. in height, rough or granular on the surface, 

 quite thick and equal throughout their length, and dark brown in 

 14 



