142 



Mycologia 



Cy perns mutisU (H.B.K.) Griseb., Jamaica. 



Cy perns ozmlaris (Michx.) Torrey, Alabama, Delaware^ 

 South Carolina. 



Cypertis refrachis Engelm., Delaware. 



Cyperus retrofractus (L.) Torrey, Alabama. 



Cypertis Schweinitzii Torrey, Illinois, Iowa, Indiana, Ne- 

 braska, Oklahoma, Wisconsin. 



Cyperus spectabilis Scheb., Mexico (state), Morelos. 



Cyperus strigosus L., Indiana, Missouri, New York. 



Cyperus sp., North Carolina. 



Kyllinga hrevifolia Rottb., Porto Rico. 



Kyllinga pumila Michx., Grenada; Porto Rico; Martinique; 



Vera Cruz. 

 Kyllinga odorata Vahl, Guatemala. 

 Type locality : Decorah, Iowa, on Cyperus Schzveinitzii. 

 Distribution : Massachusetts, Wisconsin and Nebraska south 

 through Mexico, Central America and the West Indies. 



Exsiccati: Barth. N. Am. Ured. 542, 837, 838, 1436; ElHs & 

 Ev. Fungi Columb. 18^0, 214^; Ravenel, Fungi Am. 2'/8, 4p8; 

 Sydow, Ured. 1016, loiy, 1177. 



Pticcinia Cyperi has long been confused with P. canaliculata as 

 explained in the note under that species. It is most certainly en- 

 titled to recognition. The list of hosts includes three species of 

 Kyllinga, a comparatively small genus rather closely related to 

 Cyperus. 



6. Puccinia liberta sp. nov. 

 O and 1. Pycnia and aecia unknown. 



II. Uredinia chiefly culmicolous, scattered, usually numerous, 

 oval or oblong, 0.3-1.5 mm. long, sometimes longer by becoming 

 confluent, tardily dehiscent by longitudinal slits, somewhat bul- 

 late, slightly pulverulent after dehiscence ; urediniospores broadly 

 ellipsoid or obovoid, sometimes more or less laterally compressed, 

 13-21 by 18-27 /x; the wall golden- or cinnamon-brown, 1.5-2 /x, 

 thick, moderately and finely echinulate ; the pores 2, equatorial. 



III. Teha rare, only few seen, resembling uredinia in shape 

 and size, darker in color, tardily dehiscent by longitudinal slits, 

 compact ; teliospores clavate-oblong or fusiform, 14-18 by 

 40-50 IX, rounded or acuminate above, usually narrowed below ; 

 the wall golden- or cinnamon-brown, often paler at apex, 1-1.5/^ 

 thick, thicker above, 4-7 /x, smooth ; pedicel short, tinted. 



