34 BOTANICAL GAZETTE. 



spores ovate-elliptical, slightly colored, binucieate, .0002-.0003 of an 

 inch long, .00016-. 0002 • f an inch broad. 



Bark of arbor-vilae. Vermont. C. G. Pringle. 



This fungus is sparingly accompanied by a Sphaeria to be hereafter 

 described. I am not sure that the whitish crust belongs to or has 

 anything to do with the fungus. Its presence may be accidental but it 

 occurs in all the specimens before me. The spores are brownish in 

 the mass. 



Phoma colorata. — Perithecia minute, .006-. 008 of an inch 

 broad, nearly free, hemisphi rical or subconical, sometimes depressed 

 when dry, black; spores minute, broadly elliptical, simple, colored, 

 .0002-. 00025 *^f ^" \x\c\\ long. 



Surface of wood. Vermont. C. G. Pringle. 



This species is closely related to the preceding one but is accom- 

 nied by no whitish crust and the spores are smaller, more highly col- 

 ored and destitute of nuclei. They are brown in the mass. The peri- 

 thecia prow intermingled with specie.^ of Patellaria. 



Septoria consocia. — Perithecia minute, .0025-. 003 of an inch 

 broad, closely gregarious, amphigenous, black; spores filiform, nearly 

 straight, .0006-.000S of an inch long. 



Living or languishing leaves of Seneca snake root, Polygala Senega. 

 Michigan. V. M. Spalding. 



The perithecia manifest a tendency to grow in groups or clusters. 

 They are associaied with a species of ^4^cidium. 



Septoria irregulare. — Spots small, angular, often confluent, at 

 first yellowish above, then reddish-brown with a narrow darker border, 

 brown or grayish-brown beneath; perithecia hypophyllous, sometimes 

 amphigenojs, irregular, black; spores numerous, filiform, colorless, 

 .0012-. 0018 of an inch long. 



Living leaves of poison sumach, Rhus Toxicodendron. Illinois. /. 

 Wolff. Communicated by S. A. Forbes. 



This is clearly distinct from rhoidis B.&C. in the spots, perithecia 

 and spores. The latter s imetimes appear as if obscurely unise{)tate. 



DiscELLA VARrABiLis. — Perithecia orbicular oblong or hysteriform, 

 rupturing irregularly and revealing the pallid or blackish disk, black; 

 spores elliptical-oblong, colorless, .0003-.0004 of an inch long, about 

 .0016 of an inch broad. 



Decorticated surface of wood. Vermont. C. G. Pringle. 



When moist the perithecin open more widely and then by reason of 

 the toothed margin the orbicu ar ones resemble species of Phacidium. 

 The elongated ones resemble species of Hys'erium or Triblidium. 

 They are often partly concealed by the overlying fibers of the wood. 



Spokidesmium MiNUTissiMUM — Spores irreeular, multicellular, 

 opake, without any distinct base, generally subglobose or broadly ellip- 

 tical, .0005-00065 of an inch long, collected in minute, scattered 

 black tufts which are .004-. 005 of an inch in diameter. 



Whitened surface of decaying wood. Vermont. C. G. Pringle. 



.^CIDIUM Jamesianum. — Spots suborbicular, yellowish-green; per- 

 idia mostly hypophyllus, rarely amphigenous, loosely clustered, pus- 

 tuhform, opening by a small aperture; spores subglobose, .0008-. 001 



