﻿Fungi from various Localities * 505 



eter, with papilliform ostiolum : asci clavate-cylindrical, short- 

 stipitate, obscurely paraphysate, 80-120 x 12-13 {*: sporidia 

 fasciculate, 90-1 10 x 4-5 f*, 8-10-septate and more or less con- 

 stricted at several of the medial septa, yellowish, each cell with a 

 single nucleus. 



The perithecia are mostly on the leaves but occur also on the 



partly dead stems. 



Pleom ass aria maxima E. & E. 



On bark of dead Magnolia, Brookline, Mass., April, 1893 



(Prof. H. L. Jones, no. 30). 



Perithecia irregularly scattered or subcircinate, depressed-glo- 

 bose, carnose-membranous, 1-1.25 mm. in diameter, partly sunk in 

 the surface of the inner bark and covered by the epidermis ; osti- 

 ola erumpent, not united in a disk, tuberculiform, irregularly de- 

 hiscent. When the epidermal layer is removed, the ostiola and 

 apex of the perithecia come off with it, leaving the perithecia open 

 with their grayish interior exposed : asci clavate-cylindrical, short - 

 stipitate, 8-spored, 200-260x45-60 «, with abundant paraphyses : 

 sporidia subbiseriate, fusoid-oblong, subacute, 6-15-septate and 

 clathrate-muriform, generally constricted at the middle septum 

 and sometimes at one or more of the other septa, hyaline at first 

 with a broad hyaline envelope, becoming dark-brown, 60-90 



0-80) 



Melanconis obruta E. & !•■■ 



In bark of dead Salix, St. Croix Falls, Wis., Nov., 1897 (C 



F. Baker, no. 586). 



Conidia {Melanconium sp.), stroma convex, thin, 2-3 mm. 

 across, slightly sunk in the surface of the inner bark and erumpent 

 on the epidermis : conidia ovate, nearly opaque. I 5-22 x IO_I ^ t* '■ 

 ascigerous stroma sunk in the inner bark, depressed-conical, about 

 1 mm. across, yellowish-white inside : perithecia circulate in the 

 bottom of the stroma, 12-15 in a stroma, ovate-globose, about .25 

 mm. in diam., their slender necks rising together and piercing the 

 overlying conidial stroma but so encumbered and overwhelmed by 

 the mass of conidia that the character of the ostiola can not : readily 

 be seen : asci 

 230 X 16-1 



00- 

 ip- 



tical, hyaline, becoming olive-brown, uniseptate, obtuse, constricted 



9-22 x 10- 



it from M. st 



