66 



Mycologia 



species which accompanies this paper, which drawings are made 

 from material which is typical of the two species. A careful 

 study of material from widely different localities is necessary in 

 order to determine whether or not this character is constant. 



Doubtful Species 

 Dialonectria gibber elloides Ellis & Everh. Jour. Myc. 4: 122. 

 1888. Nectria gibber elloides (Ellis & Everh.) Sacc. Syll. Fung. 

 9:963. 1891. 



Perithecia scattered, nearly black (quite black in dried mate- 

 rial), 150-200 mic. in diameter, contracted into a stem-like base 

 below, finally collapsing ; asci clavate, 8-spored, 35 X 5-6 mic. ; 

 spores partially 2-seriate, fusoid, 1 -septate, straight or slightly 

 curved, hyaline, 12-15 X 2 -5~3 m ic 



On dead stalks of Zea Mays. 



Type locality : Louisiana. 



Distribution : Known only from type locality. 



Specimens examined: Louisiana, Langlois (type). 



As would be inferred by the specific name, this species resem- 

 bles a Gibberella but differs in the absence of blue color from the 

 perithecia, the i-septate spores and a difference in the form of 

 the perithecia. The spores resemble those of the genus Nectria 

 but it is doubtful from the general appearance of the plants if 

 they should be included with this genus. If color be regarded 

 strictly as a characteristic of the order Hypocreales this species 

 could scarcely be included with the order. 



Nectria (Lasionectria) setosa Ferd. & Winge, Bot. Tidsskrift 

 29: 11. 1908. 



Perithecia superficial, scattered or slightly gregarious, at first 

 globose, then plane when dry pezizoid-collapsing, 250-500 mic. in 

 diameter, flesh-colored or orange, hairs scattered, of the same 

 color, rigid, thickened below, above slightly attenuate and finely 

 divided (conidiophorous) as long as 100 mic, principally near the 

 base ; asci when young, lanceolate-subfusoid, when mature cylin- 

 drical-clavate, 50-70 mic. (p. sporif.) X 8-10.5 mic, narrowed 

 into stem as long as 20 mic. ; 8-spored ; spores above 2 seriate, 

 below 1 -seriate oblong-elliptical, ends rotundate, not at all or 

 scarcely constricted at the septum, 1 2-14.5 X 5-6 mic, hyaline. 



On decayed dried sheaths of Musa sp. 



Type locality: St. Thomas, W. Indies. 



