48 Thirty-second Report on the State Museum. 



Petioles of fallen maple leaves. Adirondack Mountains. July. 



This species is closely related to H. g facile and H. fastidiosum, which 

 relationship suggests the specific name. It imitates the latter species in its 

 habitat, but I have not found it except on the petioles and occasionally the 

 midveins of maple leaves. 



Helotium palustre n. sp. 



Cups stipitate, plane or slightly convex, pallid or whitish; stem 3"-6' f 

 long, slightly thickened at the base ; asci subclavate ; spores oblong, .0004'- 

 .0005' long. 



Fallen leaves in wet places. Sandlake. May. 



In the dried specimens the hymenium assumes a dark reddish-brown or 

 chestnut color. The stem is long in proportion to the size of the cup. 



Helotium vibrisseoides u. sp. (Plate II, figs; 7-9.) 



Cups sessile, l"-2" broad, immarginate, externally blackish or blackish- 

 green, the disk plane or convex, livid-white or blackish-green; asci very long, 

 linear ; spores elongated, filiform, very slender, sometimes becoming coiled, 

 bursting forth and covering the disk with a whitish webby stratum. 



Decaying sticks lying in water. Sandlake and Catskill Mountains. May 

 and July. 



Externally this fungus has the appearance of a Helotium, but the fructifica- 

 tion is exactly that of a Vibrissea. It seems to me that it really belongs to- 

 the genus Vibrissea, but I am prevented from placing it there because in the 

 absence of a stem it fails to meet fully the published characters of that genus. 

 I am fully persuaded that some of the genera of fungi are imperfectly character- 

 ized, and that we cannot have a satisfactory arrangement of our species until 

 these defective descriptions are modified or revised. 



Patellaria pusilla n. sp. 



Cups sessile, small, .014'-. 028' broad, slightly margined, the disk plane or 

 convex when moist, slightly concave when dry, black ; asci clavate ; spores 

 crowded or biseriate, lanceolate or subclavate, 6-8-nucleate, .O0065'-.0008 A 

 long, .0001-.00012' broad; paraphyses numerous, filiform, not thickened at 

 the apex. 



Decaying beech wood. Catskill Mountains. July. 



The spores in shape are similar to those of P. atrata. They are extremely- 

 narrow and probably become 5-7-septate when fully mature. 



Dermatea minuta n. sp. 



Cups minute, .009 '-.01 7' broad, numerous, scattered or sometimes two or 

 three crowded together, attached by a small point, grayish, the disk subo- 

 chraceous, margin obsolete, disk plane or convex ; asci oblong-clavate ; spores 

 crowded, oblong-elliptical, .0008'-.001' long, colorless, simple ; paraphyses 

 filiform, thickened at the apex. 



Dead stems of hobble-bush, Viburnum lantanoides. Catskill Mountains. 

 July. 



This is the smallest species of Dermatea known to me. 



