Seaver: Hvpocreales of North America 69 



few rigid, hyaline, many-septate hairs with a bulbose base; hairs 

 7-8 mic. in diameter and 200-400 mic. long ; asci clavate, 8-spored, 

 80-100X12-15 mic; spores 2-seriate or irregularly crowded, 

 fusiform, 3-septate, hyaline, 30-35 X 7-8 mic. 



On the mycelium of Meliola on living leaves. 



Type locality: Brazil. 



Distribution : Louisiana. 



ExsiccATi : Roumeguere, Fungi Sel. Exsicc. 4141 (cotype) ; 

 Roumebuere, Fungi Gall. Exsicc. 404^ (cotype of C. guarapiensis 

 Speg.) ; Louisiana, Langlois 2224. 



This species resembles in external appearance as well as in 

 habitat the various specimens of Calonectria erubescens (Rob.) 

 Sacc, but are easily distinguished by the difference in form and 

 much larger spores. Also in some of the specimens examined 

 the two species seem to occur together, some of the perithecia 

 containing the large spores and others the small spores which are 

 characteristic of the two species respectively. 



Doubtful Species 

 Calonectria Curtisii (Berk.) Sacc. Michelia i: 316. 1878. 



7. Ophionectria Sacc. Michelia i : 323. 1878 



Perithecia scattered or gregarious, globose or pyriform, super- 

 ficial, light-colored, yellow or brownish ; asci cylindrical to cla- 

 vate, 8-spored ; spores very much elongated, approaching filiform, 

 at least 10 times as long as broad, many-septate. 



Type species : Nectria trichospora Berk. & Br. 



The genus is distinguished from Calonectria by the spores, 

 which are much longer, approaching or entirely filiform. Only 

 the non-stromatic forms are treated here. 



Perithecia globose or subglobose, spores 35-50 mic. long, 



on fungi. i. O. cerea. 



Perithecia elongated, substipitate, spores 60-75 rnic 2. O. cylindrothecia, 



I. Ophionectria cerea (Berk. & Curt.) Ellis & Everh. 

 N. Am. Pyrenom. 118. 1892 

 Sphaeria cerea Berk & Curt. Grevillea 4: 108. 1876. 

 Calonectria cerea Sacc. Syll. Fung. 2: 551. 1883. 



