No. 104.] 47 



Rhabdospora pleosporoides, Sacc, 

 Dead stems of Scotch thistle, Onopordon acanthitim. Albany. 

 May. Clinton. 



Rhabdospora Xanthii, w. sp. 



Perithecia numerous, small, .011 to .014 in. broad, depressed, cov- 

 ered by the thin browned or blackened epidermis which is pierced bv 

 the ostiola; spores filiform, curved, colorless, .0008 to .0012 in lon>' 

 .00006 broad. • ^' 



Dead stems of cocklebur, Xanthium strumarium. Albany and 

 North Greenbush. Apr. 



The tissues surrounding the perithecia are often colored in such a 

 way aa to impart a smoky-brown hue to the affected patches. 



Phlyctaena septorioides, Sacc. 

 Dead stems of poke weed, Phytolacca decajidra. Albany. Nov. 



Phlyctaena complanata Sacc. 

 Dead stems of Polygonum. North Ureenbush. May. 



Zythia ovata, n. sp. 



Perithecia ovate, reddish or flesh colored when fresh and moist, black 

 when dry, single or two to three in a cluster, nearly superficial, .025 

 to .030 in, long, .017 to .018 broad; spores oblong, colorless, .0003 in. 

 long, .00012 broad ; basidia densely and fasciculately branched. 



Dead bark of poplar. South Ballstou. Sept. 



Diplodina EUisii, Sacc. 

 Dead stems of goose foot, Che-iopodiutn album. North Greenbush* 

 Apr. 



This was originally Diplodia hyalospora, C. & E. The perithecia 

 are. 008 to .01 broad. The spores are at first simple, then uniseptute. 

 They are .0007 to .001 long, .00035 to .0004 broad. 



Thyrsidium Micheneri, Sacc. 

 Dead branches of water beech, Carpinus Americana. West Troy. 

 May. 



This is Cheirospora Micheneri, B, & C. 



Marsonia Martini, ^S". cf- B. 

 Living leaves of Quercus prinoides. Karner. Sept. 



Coryneum compactum, B. £ Br. 

 Dead brauches of red birch, Betula ni<jra. Saugerties. ^fay. 



Pestalozzia Saccardoi, Speg. 

 Dead leaves of oak, Quercus alba. Day. July. Tlio spots on tlio 

 leaves are less black and the colored ci-lls of the spores are inoro nu- 

 merous in this species than in P. monochcete, which also inhabits oak 

 leaves. 



