Pound and Clements: north American hyphomycetes. 665 



Fusiporium Lk. , now generally included in Fusarium, if kept 

 separate, should be placed here. The propriety of the present 

 disposition of Fusiporium is discussed under Fusarium. 



Tribe Verticillieae Sacc. Syl. Fung. 4: 149. 1886. 

 Sporophores erect or ascending, verticillately branched, or 

 the ultimate branches verticillately disposed or at least dicho- 

 tomous, hyaline or fuscous; conidia acrogenous, solitary, rarely 

 capitate, never catenulate, simple or septate, hyaline or fus- 

 cous. 



10. VERTICILLIUM Nees. Syst. Pilz. 57. 1816. 

 Sporophores oppositely or verticillately branched or the ulti- 

 mate branches verticillate, hyaline or bright colored; conidia 

 solitary, simple, concolorous. 



18 species are reported from the United States. The species 

 are conidial stages of Hypocreaceae, e. g. Hypomyces. 



11. VERTICICLADIUM Preuss. Linn. 24:127. 1851. 

 Sporophores oppositely or verticillately branched, fuscous; 



conidia solitary, simple, hyaline or fuscous. 

 2 species are reported from the United States. 



12. DIPLOCLADIUM Bon. Handb. Alg. Myk. 98. 1851. 

 Sporophores verticillately branched; conidia typically soli- 

 tary, one-septate, hyaline. 



1 species reported from the United States. Like Vertidllium 

 contains conidial forms of Hypomyces. 



13. DACTYLIUM Nees. Syst. Pilz. 58. 1816. 

 Sporophores verticillately branched, rarely simply verticil- 

 late; conidia solitary, 2 — many-septate, hyaline. 



2 species are reported from this country. The genus con- 

 tains conidial stages of Hypocreaceae (Hypomyces). 



14. MONOSPORIUM Bon. Handb. Alg. Myk. 95. 1851. 

 Sporophores irregularly or oppositely branched, the ultimate 



branches typically dichotomous or pseudo-verticillate, hya- 

 line; conidia simple, hyaline or bright-colored. 

 1 species is reported from the United States. 



15. ACROSTALAGMUS Corda. Ic. Fung. 2:15. 1838. 

 Sporophores verticillately branched, hyaline or bright- col- 

 ored; conidia simple, hyaline, capitate, involved in mucus. 



1 species is reported from the United States. Contains con- 

 idial stages of Nectria. 



