Pound and Clements: north American hyphomycetes. 651 



11. SEPTOCYLINDRIUM Bon. Handb. Alg. Myk. 34. 1851. 

 Sporophores very short and scarcely distinct from the con- 



idia, or in parasitic species distinct but short and inflated or 

 denticulately sub-lobate at the apex; conidia oblong or cylin- 

 drical, one to many - septate, concatenate, the chains often 

 branched. 



We have followed Dr. Halsted in including in this genus the 

 species of Ramularia with short simple sporophores and chains 

 of conidia, usually branched. 



As here limited, contains 14 species reported from the United 

 States. Of the saprophytic species the type is: 



Septocylindrium septatum (Bon.) Pound Am. Nat. 23: 183. 1889. 

 Cylindrium septatum Bon. Handb. Alg. Myk. 35. 1851. 

 Septocylindrium honordcnii Sacc. Mich. 2: 15. 1860. 



The parasitic species, including those brought over from 

 Ramularia, are: 



Septocylindrium areola (Atkinson). 



Ramularia areola Atkinson. Bot. Gaz. 15: 168. 1890. 

 septocylindrium canadense (E. & E.) 



Ramularia canadensis E. & E. Proc. Acad. Phil. 1891: 81. 1891. 

 Septocylindrium concomitans (Ell. & Holw.) Halsted, Seymour & Earle E c. 

 FuDg. No. 299. 1893. 



Ramularia concomitans Ell. & Holw. .Tourn. Myc. 4: 2. 1888. 



Septocylindrium euonymi (E. & K.) 



Ramularia euonymi E. & K. Journ. Myc. 1: 3. 1885. 

 Septocylindrium ranunculi Pk. Rep. N. Y. Mus. 34:— (46). 1883. 

 Septocylindrium repens (E. & E.) 



Ramularia repens E. & E. Proc. Acad. Phil. 1891: 85. 1891. 

 Septocylindrium rufo-maculans (Pk.) 



Ramularia rufo-maeulans Fk. Rep. N.Y. Mus. 34: — (46). 1883. 

 ~i i'tocylindrium scirpinum Pk. Rep. N.Y. Mus. 45:— (93). 1893. 

 Septocylindrium spiraeae (Pk.) 



Ramularia spiraeae Pk. Rep. N. Y. Mus. 34:— (46). 1883. 



Ellis and Everhart (Journ. Myc. 1 : 79) include this under 

 Ramularia ulmariae Cke., but in the absence of further 

 data we retain the name spiraeae. R. ulmariae seems a true 

 Ramularia 



Septocylindrium stoloniferum (E. & E.) 



Ramularia stolonifera E. & E. Proc. Acad. Phil. 1891: 85. 1891. 

 Septocvlindrium subrufum (Ell. & Holw.) 



Ramularia aubruf a Ell. & Holw. Journ. Myc. 4: 2. 1888. 



12. POLYSCYTALU3I Riess, Bot. Zeit. 1 1 : 138. 1853. 

 Sporophore rigid, simple or slightly branched, hyaline or 



fuliginous; conidia cylindrical, truncate at both ends, conca- 

 tenate, resembling joints of the sporophores. 

 2 species are reported from the United States. 



