Part 5, 1920] AECIDIACEAE 349 
74 », rounded or obtuse above, very slightly constricted at septum; wall chestnut-brown, 
moderately thick, 2-2.5 u, thicker above, 7-10 », smooth; pedicel slightly tinted, one half to 
once length of spore. 
On CYPERACEAE: 
Fuirena breviseta Coville, Florida. 
Fuirena hispida Ell., Alabama. 
Fuirena simplex Vahl, Texas; Cuba. 
Fuirena squarrosa Michx., South Carolina. 
Type wocauiry: Aiken, South Carolina, on Fuirena Squarrosa. 
Distriution: From South Carolina along the Gulf of Mexico to Texas, and in Cuba. 
Exsrccati: Rav. Fungi Am. 54; Sydow, Ured. 1174. 
111. Dicaeoma fuirenicola Arthur. 
Uredo Fuirenae P. Henn. Hedwigia Beibl. 38:70. 1899. Not Dicaeoma Fuirenae Kuntze, 1898. 
Puccinia (?) fuirenicola Arth. Bull. Torrey Club 46: 109. 1919, 
O and I. Pycnia and aecia unknown. 
II. Uredinia hypophyllous, scattered, elliptic or oblong, 0.5-1 mm. long, cinnamon-brown, 
tardily dehiscent by a longitudinal slit, ruptured epidermis conspicuous; urediniospores broadly 
ellipsoid, globoid or obovoid, 18-23 by 23-27 »; wall moderately thick, 2-2.5 B, goliden- or 
cinnamon-brown, the pores 2, equatorial or approximately equatorial. 
IH. Telia unknown. 
ON CYPERACEAE: 
Fuirena umbellata Rottb., Cuba; Porto Rico. 
TYPE LOcaLity: St. Catharine, Brazil, on Fuirena umbellata. 
DisrRisuTIoN: West Indies; also in South America and India. 
112. Dicaeoma Scleriae (Paz.) Arthur. 
Rostrupia Scleriae Paz. Hedwigia 31:96. 1892. 
Aecidium passifioricola P. Henn. Hedwigia 43: 168. 1904. 
Puccinia Scleriae Arth. Mycologia 9:75. 1917. 
O. Pycnia hypophyllous, in groups 2-6 mm. in diameter, conspicuous, light-brown be- 
coming chocolate-brown, globoid, 112-144 u in diameter; ostiolar filaments 98-144 u in length. 
I. Aecia hypophyllous, crowded on yellowish-brown spots 0.5-2.5 cm. in diameter, 
cupulate, short, 0.1~0.3 mm. in diameter; peridium slightly yellowish, erose, fragile; peridial 
cells rhomboidal or oblong, 14-23 by 21-26 n, abutted, the owter wall 3-4» thick, faintly 
striate, the inner wall 2-3 » thick, closely and finely verrucose; aeciospores angularly globoid 
or oblong, 15-19 by 16-23 »; wall colorless, thin, 1 » or less, closely and finely verrucose. 
ON PassIFLORACEAE: 
Passiflora rubra 1,., Cuba; Jamaica; Porto Rico. 
II. Uredinia culmicolous and amphigenous, scattered, oval or oblong, 0.1-0.5 mm. long, 
tardily naked, compact, cinnamon-brown, ruptured epidermis noticeable; urediniospores 
ellipsoid or obovoid, 13~19 by 19-27 y; wall pale cinnamon-brown or colorless, about 1 » thick, 
moderately echinulate, the pores indistinct, probably 3 or 4, equatorial. 
III. Telia culmicolous and hypophylious, scattered, oval or oblong, 0.2-1 mm. long, long 
covered by the epidermis, blackish, surrounded by a strongly developed dark-brown stroma; 
teliospores cylindric or sometimes in 2-celled spores clavate, 1-4-celled, 12-16 » wide, the 
2-celled 32-61 » long, the 3-celled 42~72 » long, not or slightly constricted at septa, rounded or 
acute at apex, rarely somewhat narrowed below; wall golden- or cinnamon-brown, thin, 1 yu, 
1-7 » thick at apex; pedicel short, 3-16 » long, chestnut-brown. 
On CYPERACEAE: . 
Scleria cubensis Béck., Porto Rico. 
Scleria melaleuca Schlecht. & Cham., Panama. 
Scleria pierota Presl, Cuba; Porto Rico. 
Scleria setulosa-ciliata Béck., Panama. 
TyPpr LocALIty: Itajahy, Brazil, on Scleria sp. . : 
DISTRIBUTION: West Indies and Panama; also in South America. 
