346 NORTH AMERICAN FLORA [VoLUME 7 
Cyperus Bushii Britton, Kansas. 
Cyperus cayennensis (Lam.) Britton, Cuba; Porto Rico. 
Cyperus cylindricus (Ell.) Britton (C. Torreyi Britton), Alabama, Texas. 
Cyperus dissitifiorus Nees, Panama. 
Cyperus filiculmis Vahl, Connecticut, Delaware, Indiana, Kansas, Massachusetts, Ni ebraska, 
New York, Oklahoma, Texas, West Virginia, Wisconsin. 
Cyperus flavicomus I,., Mexico (state). 
Cyperus globosus Aubl, (C. echinatus Wood), Alabama. 
Cyperus Grayi Torr., New Jersey, New Vork. 
Cyperus hermaphroditus (Jacq.) Standley, Guatemala. 
Cyperus Houghtonii Torr., Wisconsin. 
Cyperus lancastriensis Porter, Delaware. 
Cyperus Mutisii (H.B.K.) Griseb., Jamaica. 
Cyperus ovularis (Michx.) Torr., Alabama, Arkansas, Delaware, South Carolina. 
Cyperus refractus Engelm., Delaware. 
Cyperus retrofractus (1,.) Torr., Alabama. 
Cyperus Schweinitzii Torr., Illinois, Indiana, Iowa, Nebraska, Oklahoma, Wisconsin. 
Cyperus spectabilis Schreb., Mexico (state), Morelos. 
Cyperus strigosus l., Arkansas, Indiana, Missouri, New York. 
Cyperus sp., North Carolina. 
Kyllinge brevifolia Rottb., Porto Rico. 
Kyllinga odorata Vahl, Guatemala. 
Kyllinga pumila Michx., Grenada; Porto Rico; Martinique; Veracruz. 
TYPE LOCALITY: Decorah, Iowa, on Cyperus Schweinitzii. 
DISTRIBUTION: Massachusetts to Wisconsin and Nebraska, and southward through Mexico, 
Central America, and the West Indies. 
Exsiccatr: Barth. N. Am. Ured. 542, 837, 838, 1436, 1834, 2233; Ellis & Ev. Fungi Columb. 
1850, 2145; Rav. Fungi Am. 278, 498; Sydow, Ured. 1016, 1017, 1177. 
104. Dicaeoma Cyperi-tagetiformis (P. Henn.) Arthur. 
Uredo Cyperi-tagetiformis P. Henn. Bot. Jahrb. 34: 598. 1905. 
Puccinia Cyperi-tagetiformis Kern, Mycologia 11: 138. 1919. 
Oand I. Pyenia and aecia unknown. 
II. Uredinia hypophyllous and culmicolous, scattered, oblong, 0.5-2 mm. long, tardily 
dehiscent by longitudinal slits, bullate, finally pulverulent, cinnamon-brown; urediniospores 
broadly ellipsoid or slightly obovoid, 15-21 by 19-26 u; wall dark cinnamon-brown or somewhat 
lighter, 1.5-2.5 » thick, frequently thicker and lighter at apex, up to 3 w, verrucose or verrucose- 
echinulate, the markings more pronounced above, the pores 2, equatorial. 
III. Telia chiefly hypophyllous, most often confluent in groups 1-4 mm. or more long, 
individual sori linear, about 0.1 mm. in width, surrounded by well developed brownish stroma, 
blackish-brown, long covered by the epidermis, not much raised above the leaf-surface; telio- 
spores clavate-oblong, 14-18 by 31-48 y», acuminate, obtuse or rounded above, narrowed below, 
slightly constricted at septum; wall golden- or light cinnamon-brown, about 1 » thick, much 
thicker above, 6-10»; pedicel short, slightly tinted. 
On CYPERACEAE: 
Cyperus distans L., Porto Rico. 
Cyperus flavicomus L., Michx., Texas. 
Cyperus laevigatus L,., Porto Rico. 
Cyperus odoratus I,., Cuba; Porto Rico. 
Cyperus polystachys Rottb., Porto Rico. 
Cyperus radiatus Vahl, Porto Rico. 
Cyperus sphacelaius Rottb., Porto Rico. 
Cyperus surinamensis Rottb., Porto Rico. 
Type LocaLiry: Kamodamura, Tosa, Japan, on Cyperus tagetiformis. - 
DIstRIBUTION: Southeastern Texas and the West Indies; also in India, Japan and the Philip- 
pine Islands. 
Exsrccatr: Barth. N. Am. Ured. 1745. 
105. Dicaeoma abreptum (Kern) Arthur. 
Puccinia abrepta Kern, Mycologia 11: 140. 1919. 
Oand I. Pyenia and aecia unknown. 
II. Uredinia hypophylious, scattered, oval or oblong, 0.3-1 mm. long, somewhat bullate, 
rather tardily naked, ruptured epidermis conspicuous, cinnamon-brown; urediniospores ellip- 
soid or obovoid, 16-19 by 23-26 y; wall cinnamon-brown, 1-1.5 wz thick, moderately or sparsely 
echinulate, the pores 3, equatorial, covered with a swollen hyaline cuticle. 
Ill. Telia not seen; teliospores narrowly ellipsoid or oblong, 13-16 by 27-45 u, rounded 
above and slightly narrowed below, somewhat constricted at septum; wall light cinnamon- 
