Part 3, 1912] AECIDIACEAK 233 



^■^""columbL ''^'^^^'^"' ^^^""-^ ^""^" f^- ''Ph^l<^^iha A. Gray), Delaware, District of 

 fq^tpTa %'pt:t.':n^^-i,^^^^^^^ ^^-^^a, .cisiana, Missouri. 



■^ West vfrS''' "" ^ ^^ ^^^^' '^^''^^'"^' ^^^^^^^^' Mas^sachusetts, New Jersey, Ohio, 

 ^-^''ct^oW ^^^'"''''''''^ paniculata (A. Gray) Chapm., Alabama, Mississippi, South 



Rynchospora micrantha Vahl, Porto Rico. 

 Rynchospora microcarpa Baldw. , Florida' 

 I^nchospora perplexa Britton, Florida. 

 Rynchospora poly phylla Vahl, Jamaica. 

 Type locality : Pennsville, New Jersey, on Rynchospora glomerata. 



mudaf^dThe^est S°"' ^^^ '^"'^''^ ^"'""^ ^^"'^ '° I^ouisiana and Florida, and in Eer- 

 ExsiCCATi : Barth. Fungi Columb. 2397 ; Earth. N. Am. Ured. 98. 



24. Nigredo Scleriae (P. Henn.) Arth. Result. Sci. Congr. Bot. 



Vienne 344. 1906. 



Uromyces Scleriae P. Henn. Hedwigia Eeibl. 38 : 67. 1899. 

 O and I. Pyctiia and aecia unknown. 



II. Uredinia hypophyllous, oblong, 0.2-0.5 mm. long, long covered by the epidermis, 

 finally pulverulent, cinnamon-brown; urediniospores obovoid or ovoid, 18-26 by 23-35 ^u; 

 wall 1.5-2.5 M thick, thicker at apex, 3-9 m, rather sparsely echinulate with conical papillae^ 

 the pores 3, approximately equatorial, obscure. 



III. Telia hypophyllous, oblong, tardily naked, chestnut-brown ; teliospores broadly 

 ellipsoid or obovoid, 18-24 by 22-38 m, rounded above, obtuse or narrowed below; wall 

 chestnut-brown, moderately thick, 2-3^, thicker at apex, 4-8m, smooth; pedicel short, 

 nearly or quite colorless. 



On Cyperaceae : 



Scleria pterota Presl, Porto Rico. 

 Type locality : Rio de Janeiro, Brazil, on Scleria sp. 

 Distribution: Porto Rico; also in South America. 



25. Nigredo Scirpi (Cast.) Arth. Result. Sci. Congr. Bot. 



Vienne 344. 1906. 



Uredo Scirpi Cast. Cat. PI. Mars. 214. 1845. 



Aecidium Glaucis Dozy & Molk. Tijds. Nat. Gesch. 12 : 286. 1845. 



Pucctnia lineolaia Desmaz. Ann. Sci. Nat. III. 11 : 273. 1849. 



Uromyces lineolatus Schrot.; Rah. Fungi Eur. 2077, 1876. 



Aecidium Sii'lahfolii Wint. in Rab. Krypt. Fl. li : 265. 1881. 



Uromyces Scirpi Burrill, Bot. Gaz. 9 : 188. 1884. 



Uromyces marilimus Plowr. Gard. Chron. III. 7: 746. 1890. 



Uromyces Burrilli lyagerh. Tromo Mus. Aarsh. 17 : 41. 1895. 



Caeom-urus lineolatus Kuntze, Rev. Gen. 3^ : 450. 1898. 



Caeomurus Scirpi Kuntze, Rev. Gen. 33 : 450. 1898. 



Urom,yces Aecidii-Glaticis I,iro, Bidr. Finl. Nat. Folk 65 : 69. 1908, 



0. Pycnia amphigenous, numerous, scattered, inconspicuous, subepidermal, golden- 

 yellow becoming blackish-brown, globose, 65-100 jLt in diameter; ostiolar filaments 65 /it long. 



1. Aecia amphigenous, gregarious, on discolored, somewhat hypertrophied spots 2-5 

 mm. across which are often adjacentand confluent, short-cylindrical, 0.1-0.3 mm. in diameter 

 by 1-1.5 mm. high ; peridium pale-yellow or whitish, the margin lacerate, recurved ; peridial 

 cells overlapping, 22-26 m long, somewhat longer than broad, the walls transversely striate, 

 the outer 4-5 ^ thick, the inner slightly thinner; aeciospores globoid or broadly ellipsoid, 

 16-21 by 18-24 M ; vrall colorless, about 1 /x thick, minutely verrucose. 



On Ammiaceae : 



Cicuia bulbifera L., Nebraska, Wisconsin. 



Cicuta maculata I,., Florida, Colorado, Illinois, Indiana, Iowa, Nebraska. 



Oenanthe califomica S. Wats., California. 



Sium cicutaefolium Schrank, New York, North Dakota, Wisconsin. 



On Primulaceae : 



Glaux maritifna ly., Montana, Wyoming. 



