350 - NORTH AMERICAN FLORA [VoLuME 7 
113. Dicaeoma scleriicola Arthur. 
Puccinia scleriicola Arth. Mycologia 7: 232. 1915. 
O and I. Pycnia and aecia unknown. 
II. Uredinia amphigenous, scattered, oval or oblong, small, 0.3-0.6 mm, long, punctiform, 
rather tardily naked, cinnamon-brown, somewhat pulverulent, ruptured epidermis conspicuous; 
urediniospores broadly ellipsoid or obovoid, 15-22 by 19-26 4; wall pale-yellow, about 1.5 u 
thick, finely and moderately echinulate, the pores indistinct, 4, or sometimes 3, equatorial. 
If. Telia chiefly hypophyllous, scattered, oval or oblong, small, 0.3-0.4 mm. long, tardily 
naked, blackish-brown; teliospores oblong or clavate-oblong, 15-19 by 29-42 u, slightly con- 
stricted at septum, truncate, oblique, or often rounded above, usually narrowed below; wall 
cinnamon-brown, 1.5—2 » thick, usually thicker above, 3-6 yn, smooth; pedicel tinted, short. 
On CYPERACEAE: 
Scleria Baldwinii Steud., Florida. 
Scleria hirtella Sw., Florida; Porto Rico, 
Scleria pauci flora Muhl., Georgia. 
Scleria setacea Poir. (S. Torreyana Walp.), Florida. 
Scleria verticillata Muhl., Florida; Cuba. 
TYPE LOCALITY: Everglades, between Cutler and Longview Camp, Florida, on Scleria verti- 
cillata. 
DisTRIBUTION: Southern Georgia southward into the West Indies. 
114. Dicaeoma Cladii (Ellis & Tracy) Arth. Résult. Sci. Congr. 
Bot. Vienne 344. 1906. 
Puccinia Cladti Ellis & Tracy; Ellis & Ev. Bull. Torrey Club 22:61. 1895. 
O and I. Pyenia and aecia unknown. 
II, Uredinia amphigenous, scattered or often crowded on the peduncles so as to cover 
areas 2 cm. or more across, elliptic, small, 0.3-0.6 mm. long, rather tardily naked, somewhat 
pulverulent, dark cinnamon-brown, ruptured epidermis conspicuous; urediniospores broadly 
ellipsoid or obovoid, 23-29 by 29-39 y; wall golden- or cinnamon-brown, 2-2.5 » thick, moder- 
ately and very finely echinulate, the pores 4, sometimes 3, equatorial. 
III. Telia comparatively few, resembling the uredinia in shape and size but blackish- 
brown in color; teliospores ellipsoid or clavate-oblong, 18-26 by 42-51 u, moderately constricted 
at septum, rounded or obtuse at apex, usually narrowed below; wall dark chestnut-brown, 
somewhat paler below, thickened at apex, up to 9 4; pedicel golden-brown or nearly colorless, 
stout, one third length of spore or less. 
ON CYPERACEAE: 
Mariscus jamaicensis (Crantz) Britton (Cladium effusum Torr.), Mississippi, North Caro- 
lina; Bermuda; Porto Rico. 
? Rynchospora glomerata (1,.) Vahl, Virginia. 
TYPE LOCALITY: Ocean Springs, Mississippi, on Cladium effusum. 
DistTRIBUTION: Virginia to Mississippi and southward through the West Indies. 
115. Dicaeoma Fimbristylidis Arthur. 
Puccinia Fimbristylidis Arth. Bull. Torrey Club 33:28. 1906. 
O and I. Pycnia and aecia unknown. 
II. Uredinia chiefly hypophyllous and caulicolous, oblong, 0.5-1 mm. long, rather tardily 
naked, dehiscent finally by longitudinal slits, brownish-yellow, pulverulent, ruptured epidermis 
noticeable; urediniospores broadly elliptic or globoid, 15-20 by 18-26 u; wall cinnamon- or 
golden-brown, moderately thick, 1.5 », moderately or sparsely and evenly echinulate, the pores 
2, superequatorial. 
III. Telia chiefly hypophyllous and caulicolous, scattered or confluent, oblong, up to 
1.5 mm. long, compound, each component sorus round, surrounded by abundant, dark-brown, 
hyphal stroma, tardily naked, finally dehiscent by longitudinal slits, pulvinate, dark chestnut- 
brown, ruptured epidermis conspicuous; teliospores oblong, 16-19 by 34-55 uw, acute or obtuse 
above, somewhat narrowed at base, slightly constricted at septum; wall smooth, cinnamon- 
brown, moderately thick, 1.5-2.5 uw, thicker at apex, 4-9 uw; pedicel tinted, usually as long 
as spore. | 
