REPORT OF THE STATE BOTANIST I9II 51 



The late appearance of this fungus is remarkable and the varia- 

 bility of the pileus makes it desirable that it should have a distinct 

 designation. 



Ovularia avicularis 



Spots large, suborbicular or oblong, pale brownish red ; hyphae 

 amphigenous, erect, forming minute white crowded tufts, 25-35 x 

 3-4 fx; spores oblong or ellipsoid, sometimes slightly narrowed to- 

 ward the base, hyaline, 12-20 x 6-8 fx. 



Living leaves of knotgrass, Polygonum aviculare L. 

 Wood River, Nebraska. June. J. M. Bates. 



This species differs from Ovularia r i g i d u 1 a Delacr. 

 which occurs on leaves of the same host plant, in being amphigenous, 

 in having shorter and more narrow hyphae, shorter and broader 

 spores and differently colored spots. 



Paxillus microsporus 



Pileus fleshy, thin, convex becoming nearly plane, subglabrous, 

 white becoming whitish, sometimes brownish in the center, slightly 

 viscid when moist, the margin involute, spreading when mature 

 and even or distantly striate with short elevated ridges and inter- 

 vening depressions, flesh white ; lamellae thin, narrow, close, adnate 

 when young, decurrent when mature, occasionally forked or slightly 

 anastomosing at the base, whitish, becoming pale yellowish brown 

 or raw umber ; stem short, usually tapering downward, solid or 

 stuffed, colored like the pileus ; spores brownish ochraceous, minute, 

 subglobose, 2-3 fi in diameter. 



Pileus 1-6 cm broad ; stem 1-6 cm long, 3-8 mm thick. 



Solitary or cespitose. Ground under chestnut trees. Waltham, 

 Massachusetts. October. G. E. Morris. The species is remark- 

 able for its small spores. 



Phoma roystoneae 



Perithecia minute, about .2 mm broad, amphigenous, gregarious, 

 abundant, black ; spores minute, oblong or subcylindric, hyaline, 

 5-8 x 1.5-2 fx supported on short hyaline sporophores. 



On royal palm, Roystonea regia (HBK.) O. F. Cook. 

 Santiago de las Vegas, Cuba. July. C. F. Baker. 



Pluteus alveolatus eccentricus 



Stem short, curved, eccentric ; spores pale pink, in old or water 

 soaked specimens paler or yellowish, globose or subglobose, min- 

 utely rough or pitted, 6-8 n in diameter. 



