Part 7, 1922] AECIDIACEAE 513 
scarcely constricted at septum; wall chestnut-brown, 1.5-2.5 u thick, slightly or not thickened 
over pores, the pore of upper cell usually depressed, that of the lower cell half way between 
septum and pedicel, closely and minutely verrucose; pedicel colorless, usually deciduous. 
On CARDUACEAE: 
Arctium minus Schlecht., Illinois, Indiana, Massachusetts, Michigan, Missouri, New York, 
North Dakota, Pennsylvania, Virginia, West Virginia, Wisconsin; Nova Scotia, Ontario. 
TYPE LOCALITY: Prag, Bohemia, on Arctium Bardana. 
a oe Virginia to Missouri and northward and northeastward into Canada; also 
ILLUSTRATIONS: Corda, Ic. Fung. 4: fl. 5, f. 63; Beitr. t. Schweiz 2?: 221, f. 173; Zeits. 
Pilanzenkr. 9: 291, f, 15; Grove, But Rust Bune f. 90. idle : a a 
Exsiccati: Barth. Fungi Columb. 4952; Barth. N. Am. Ured. 
B68b Pes0e eel Pee gi Colum! ar red. 1224, 1636, 1936, 2232, 2342, 
64. Bullaria chondrillina (Bub4k & Sydow) Arthur & Mains. 
Uredo Chonduiliae Opiz, Seznam 151, hyponym. 1852. 
Puccinia chondrillina Bubék & Sydow, Oesterr. Bot. Zeits. 51:17. 1901. 
O. Pyenia amphigenous, honey-yellow, grouped among the primary uredinia, soon 
disappearing. 
IT. Uredinia of the primary form in large, circular or irregular groups, otherwise similar 
to the secondary form; secondary uredinia amphigenous or caulicolous, numerous, scattered 
or sometimes crowded on stems into elongate groups, round or irregular, 0.2-0.6 mm. in 
diameter, rather tardily naked, pulverulent, dark cinnamon-brown, ruptured epidermis con- 
spicuous; urediniospores of both forms obovoid or ellipsoid, 16-23 by 23-29 »; wall cinna- 
mon-brown, 1~1.5 yn, usually 1 » thick, finely, closely and inconspicuously echinulate, the 
pores 2, superequatorial. ‘ 
Ill. Telia amphigenous or caulicolous, scattered or crowded in groups of several sori, 
round or irregularly elongate, 0.2-0.8 mm. across, rather early naked, pulvinate, chestnut- 
brown, ruptured epidermis evident; teliospores ellipsoid or oblong, 19-23 by 30-39 y, usually 
rounded above and below, slightly constricted at septum; wall dark cinnamon- or light chest- 
nut-brown, of uniform thickness, thin, 1 » or less, very finely and closely verrucose, noticeable 
only when dry, the pore in upper half of each cell; pedicel hyaline, as long as spore or 
shorter, fragile. 
On CICHORIACEAE: 
Chondrilla juncea \,., District of Columbia, Maryland, Virginia. 
Tyre LocaLIty: Bohemia, on [Chondrilla sp. ?]. 
DISTRIBUTION: Northern Virginia to District of Columbia; also in Europe. 
ILLUSTRATIONS: Krypt.-fl. Brand. Pilze 3: f. B74. 
65. Bullaria Hieracii (Schum.) Arth. Résult. Sci. Congr. 
Bot. Vienne 346. 1906. 
Uredo Hieracit Schum. Enum. Pl. Saell. 2: 232. 1803. 
Uvedo Hyoseridis Schum. Enum. Pl. Saell. 2: 233. 1803. 
Puccinia Phaseoli Taraxaci Rebent, Prodr. Fl. Neom. 356. 1804. 
Uredo Cichoracearum DC. Fl. Fr. 2: 229. 1805. 
Uredo flosculosorum Hieracii Strauss, Anu. Wett. Ges. 2: 102. 1811. 
Puccinia Hieracii H. Mart. Fl. Mosq. 226. 1812. 
Puccinia fosculosorum Hieracii Rohling, Deuts. Fl. ed. 2. 3:131. 1813. 
Uredo Cichorii DC. Fl. Fr. 6: 74. 1815. 
Puccinia Compositarum Schlecht. Fr. Berol. 2: 133, 1824. 
Caeoma Cichorii Link, in Willd. Sp. Pl. 6?: 18. 1825. 
Puccinia Cichorii Bellynck; Kickx. Fl. Crypt. Fland. 2:65. 1867. 
Puccinia rugosa Billings, in S. Wats. Bot. King’s Expl. 414.1871. 
Puccinia Hypochaeridis Oud. Nederl. Kruidk. Arch. IT. 1: 175. 1872. 
Puccinia Endiviae Pass.; Thiim. Hedwigia 12: 113. 1873. 
Puccinia Troximontis Peck, Bot. Gaz. 6: 227. 1881. 
Puccinia Taraxaci Plowr. Brit. Ured. 186. 1889. 
Dicaeoma Hieracii Kuntze, Rev. Gen. 33: 469. 1898. . 
Dicaeoma Taraxaci Kuntze, Rev. Gen. 33: 470. 1898. Not D. Taraxaci Kuntze, loc. cit. 467. 1898. 
Dicaeoma Troximontis Kuntze, Rev. Gen. 38: 471. 1898. 
Puccinia Leontodontis Jacky, Zeits. PAlanzenkr. 9: 339. 1899. 
Puccinia Crepidis-acuminaice Sydow, Oesterr. Bot. Zeits. 51: 27. 1901. 
Puccinia Krigiae Sydow, Monog. Ured. 1: 104. 1902. 
Puccinia Pyrrhopappi Sydow, Monog. Ured. 1: 138. 1902. 
Puccinia sejuncta Sydow, Ann. Myc. 1: 326. 1903. 
