117 



*U8, observed from May to November, showed the two kinds of 

 sporidia mixed from the first. 



Ch. Coryli, (Fckl.) 



Chilonectria cucurbitula Sacc. Syll. II, p. 453 (partly). 

 Nectria Coryli, Fckl. Symb. p. 180. 

 Kxsicc. EH. N. A. F. 159. Sacc. M. V. 1446. 



Perithecia cespitose, erumpent, smooth, subastomous, dark red. 

 collapsing when dry, not differing in appearance from those of the 

 j (receding species, unless in being of a deeper shade of wd. Asci 

 clavate, 85-100x 10-12 /i, mostly filled with minute sporidia, exactly 

 as in the preceding species, but some contain c'ylindric-f'usoid (spor- 

 idia)? 1-septate, 10-15 x2-3 /jl, with a short, curved apiculus at each 

 end. These fusoid sporidia, lying in two or three series in the asci, 

 are so arranged with their contiguous ends in contact as to resemble 

 closely the cylindrical bodies mentioned in the preceding specie-, and. 

 like those, are often seen filled, more or less completely, with the 

 minute, oblong sporidia. This species is found exclusively on bark 

 and limbs of deciduous trees. 



The specimens of N. inaurata, in Saccardo's Mycotheca Veneta, 

 No. 1446, do not differ, as far as we can see, either in the perithecia 

 or the fructification, from the specimens in N. A. F. 15!). . in both, tin 1 

 perithecia are distinctly collapsed. 



Ch. crinigera, E. & E. Proc. Phil. Acad. July, 1890. 



Nectria sphcerospora, E. & K. in Bessey & Webber's Cat. Flora Nebr. 1S90, p. 53. 



Perithecia cespitose on a tubercular stroma, in compact clusters of 

 3-12, the single perithecia subglobose and about | mm. diam., cov- 

 ered at first with a brownish, farinaceous coat, becoming nearly black, 

 rounded and obtuse above, with a papilliform ostiolum which is 

 slightly collapsed when dry. Asci clavate-cylindrical, 70-80 x 1 2-1 5 //. 

 attenuated above when young, but becoming rounded and obtuse, 

 overtopped by the abundant but evanescent paraphyses and filled with 

 innumerable spermatoid, hyaline sporidia? (2|-3x |-f p), among which 

 lie in a single series eight subglobose or subelliptical hyaline sporidia. 

 5-8 /i diam., granular at first, but at length faintly about 3-eeptate and 

 nmriform, or sometimes marked in a sarcinuliform manner by two septa 

 at right angles to each other. When these sporidia have escaped 

 from the asci it is seen that they are sparingly clothed with spreading, 

 hyaline filaments, 8-10 fi long, 2-12 or more in number and standing 

 out on all sides from the body of the sporidiuni like rays from a star. 



On bark of dead Fraxiuu* viridis, Lincoln, Neb., Nov. 1888, 

 (H. J. Webber, No. 18). 



