34 NEW YORK STATE MUSEUM 



Marasmius contrarius n. sp. 



Pileiis submembraneous, broadly convex or nearly plane, often 

 slightly uneven, glabrous, whitish or white with a brown center 

 becoming grayish or subalutaceous in drying; lamellae thin, sub- 

 distant, sometimes branched or irregular, adnate or slightly decur- 

 rent, whitish, the interspaces slightly venose ; stem slender, solid, 

 downy, grayish-tawny, with tawny tomentum at the base, white 

 within; spores 7-9/^ long, 4-5 ,, broad. 



Pileus 4-10 mm broad; stem 2-3 cm long, 1-1.5 mm thick. 



Gregarious. Damp mossy places under spruce and balsam fir 

 trees to the fallen leaves of which the stem is commonly attached. 

 North Elba. June. 



The texture of both pileus and stem is tough. The brown center 

 often disappears in drying. This, and the whitish color changing to 

 pale tan in drying, are such an unusual occurrence as to suggest the 

 specific name. Related to AI . r a m u 1 i n u s Pk. but at once 

 separated from it by its pileus changing color in drying, its longer 

 solid stem being more downy and tawny with a distinctly tomentose 

 base and by its habitat. 



Pileus submembraneus, late convexus subplanusve, saepe sub- 

 rugosus, glaber, albus albidusve in centro brunneus, in siccitate 

 griseus vel subalutaceus ; lamellae tenues, subdistantes, aliquando 

 irregulares vel ramosae, adnatae vel leviter decurrentes, albidae, 

 interstitiis venosis ; stipes gracilis, solidus, pubescens, fulvo-griseus, 

 basi fulvo-tomentosus, intra alba ; sporae 7-9 x 4-5 p-. 



Myxosporium carpini n. sp. 



Heaps minute, greenish black, nestling in the bark, covered by 

 the epidermis ; spores oblong or elliptic oblong, exuding in pale 

 yellow tendrils, binucleate, hyaline, 8-12 i>- long, 3.5-4'^ broad. 



On bark of water beech, C a r p i n u s c a r o 1 i n i a n a Walt. 

 Geneva. June. J. G. Grossenbacher. 



Acervuli minuti, in cortice nidulantes, epidermide tecti, olivaceo- 

 nigri; sporae oblongae vel oblongo-ellipsoideae, binucleatae, hya- 

 linae, 8-12x3.5-4/^., in cirrhis exudantes. 



Naemospora croceola Sacc. 

 Oak bark. Lyndon ville. October. C. E. Fairman. 



Naucoria sororia Pk. 



Growing on manure. McLean, Tompkins co. September. G. F. 

 Atkinson. This species is doubtless often confused with 



