40 Thirty-second Report on the State Museum. 



spores minute, ovate or subelliptical, about .0001 long, interspersed among 

 short threads which often bear short widely diverging processes. 



Dead stems of herbs. North Greenbush. June. 



It may be separated from /. clavata and other similar species by its bright- 

 colored stem. 



TUBERCULARIA HIRTISSIMA fb. Sp. 



Tubercles small, one-half to one line broad, orbicular, depressed, yellow 

 or pale orange, clothed with long wooly hairs, which usually conceal them ; 

 spores elongated, cylindrical, colorless, .0008' long, about one-sixth as broad. 



Fallen ash leaves, Fraxinus sambucifolia. South Corinth. Aug. 

 This species is remarkable both for its hairy investment and its elongated 

 spores. 



TUBERCULARIA SUBDIAPHANA ScJlW. 



Dead stems of grape vines. Buffalo. Clinton. 



TUBERCULARIA FLOCCOSA Lk. 



Dead branches of sumach, Rhus typhina. Catskill Mountains. July. 



Periconia albiceps n. sp. (Plate I, figs. 8-11.) 



Stems short, .02-.03' high, equal or slightly tapering upwards, black, 

 head white, subglobose; spores oblong or subfusiform, colorless, .0003- 

 .0006' long. 



Dead stems of snake-head, Chelone glabra. Sandlake. May. 

 It sometimes occurs in great abundance, surrounding the stems on all sides 

 nearly their entire length. 



Helminthosporium obovatum Berk. 



Decaying chestnut wood. Copake. Oct. 



Cladosporium comp actum B. & C. 



Dead or languishing leaves of rye. Carlisle. June. 



At first sight this might be taken for some small Sphgeria, so well do the 

 small black compact tufts simulate sphseriaceous perithecia. The spores vary 

 in length from .001-. 0016'. They sometimes equal the floeci in length, and 

 in shape are either elliptical, obovate or oblanceolate. 



Heterosporium Ornithogali Klotsch. 



Dead or languishing leaves of garlic, Allium vineale. North Greenbush. 



May. 



FlISICLADIUM DENDRITICUM Wallr. 



On apples. Catskill Mountains. July. 



This attacks the apples while yet on the tree, and forms orbicular brown 

 or greenish-brown velvety spots on them. It also occurs on the leaves. 



Cercospora Ros^cola Pass. 



Living rose leaves. Albany. June. 



