Part 8, 1922] AECIDIACEAE 575 
arranged in radiating or dendritic manner, grayish-black, long covered by the epidermis, 
surrounded by a thin stroma of small dark cells; teliospores somewhat irregularly oblong 
or obovate-oblong, 15-22 by 32-56 u, obtuse, acute, or truncate above, obtuse or narrowed 
below, slightly or not constricted at septum; wall dark cinnamon-brown, 1.5-2 » thick, thick- 
ened at apex, 4-9 yn, smooth; pedicel nearly colorless or concolorous with base of spore, firm, half 
length of spore, usually shorter; mesospores occasionally intermixed. 
On CaRDUACEAE: 7 
Solidago puberula Nutt., Massachusetts. 
Solidago rugosa Mill., New Hampshire. 
Solidago ulmifolia Muhl., Michigan, New York. 
Solidago sp., Nova Scotia. 
TYPE LOCALITY: France, on Solidago Virgaurea. 
Distrisution: Nova Scotia to Michigan; also in Europe. 
_ ILLUsTRaTioNS: Beitr. Krypt. Schweiz 2?: f. 264; Corda, Ic. Fung. 4: pl. 4, f. 42; Grove, 
Brit. Rust Fungi f. 81; Krypt.-fl. Brand Pilze 3: f. B177; Fl. Ital. Crypt. Ured. f. 578. 
ExsiccaTi: Barth. N. Am. Ured. 480; Rel. Farl. 277a,b. 
128. Micropuccinia Asteris (Duby) Arth. & Jackson; Arth. 
Bull. Torrey Club 48: 40. 1921. 
Puccinia Asteris Duby, Bot. Gall. 2: 888. 1830. 
Puccinia Asteris Schw. Trans. Am. Phil. Soc. II. 4: 296. 1832. 
Puccinia Helenii Schw. Trans. Am. Phil. Soc. II. 4: 296. 1832. 
Puccinia Tripolii Wallr. Fl. Crypt. Germ. 2: 223. 1833. 
Puccinia Gerardii Peck, Ann. Rep. N. Y. State Mus. 24: 91. 1872. 
Puccinia Asteris purpurascens Cooke & Peck; Peck, Ann. Rep. N. Y. State Mus. 25: 118. 1873. 
Puccinia sclerotioidea Cooke, Grevillea 8: 35. 1879, 
Puccinia Doloris Speg. Anal. Soc. Ci. Argent. 12: 68. 1881. 
Puccinia magnoecia Ellis & Ev. Bull Torrey Club 22: 59. 1895. 
Dicaeoma Asteris Kuntze, Rev. Gen. 33: 468. 1898. 
Dicaeoma Doloris Kuntze, Rev. Gen. 33: 468. 1898. 
Dicaeoma Helenii Kuntze, Rev. Gen. 33: 469. 1898. 
Dasyspora Asteris Arth. Résult. Sci. Congr. Bot. Vienne 346. 1906. 
Leptopuccinia Asteris Sydow, Ann. Myc. 20: 120. 1922. 
O. Pycnia unknown, probably not formed. 
III. Telia hypophyllous, variable, solitary, 0.4-2 mm. across, or more commonly gre- 
garious, distinct, or confluent in groups 0.2—1 cm. across, on discolored spots at first yellowish, 
sometimes punctate, but usually small, round, 0.2-0.5 mm. in diameter, early naked, compact, 
often pulvinate, cinnamon- or blackish-brown, becoming cinereous by germination, ruptured 
epidermis usually conspicuous; teliospores oblong or clavate, 14-23 by 32-55z, rounded, 
obtuse, or acute above, rounded or more commonly narrowed to pedicel below, usually slightly 
constricted at septum; wall golden- or cinnamon-brown, often darker above, 1.5—2.5 » thick, 
greatly thickened above, 6-14 4, smooth; pedicel nearly colorless, firm, equaling spore or 
commouly shorter; mesospores occasionally intermixed. 
This species is correlated with Nigredo perigynia (Halsted) Arth. and'Dicaeoma A sterum 
(Schw.) Arth. & Kern, the telial characters of the three species being strikingly similar and 
the hosts of the short-cycled species corresponding with the aecial hosts of the two heteroecious 
species. This agreement doubtless indicates a common origin for the three species. 
On CARDUACEAE: 
Aster acuminatus Michx., New Hampshire, New York, Vermont; Nova Scotia. 
Aster adscendens Lindl., Montana, Utah. 
Aster azureus Landl., Indiana, Nebraska. 
Aster Burkei (A. Gray) Howell (A. foliaceus Burkei A. Gray), Washington. 
Aster Canbyi Vasey, Montana, Wyoming. 
Aster chilensis Nees (A. Chamissonis A. Gray), California. 
Aster conspicuus Lindl., Montana, Oregon; Alberta, British Columbia. 
Aster cordifolius L.., Iowa, Maryland, Mississippi, New Hampshire, New Jersey, New York, 
Pennsylvania, West Virginia; Ontario. 
Aster crassulus Rydb. (A. hebecladus Coult. & Nels. not DC.), Colorado, Montana, 
Wyoming. 
Aster Drummondii Lindl., Arkansas. 
Aster Eatonii (A. Gray) Howell, Utah. . 
Aster ericoides 1,., Kentucky, New York, Pennsylvania. 
Aster Fremontii (T. & G.) A. Gray, Washington. 
Aster Geyeri (A. Gray) Howell, Montana. 
Aster kentuckiensis Britton, Alabama. . . 
Aster laevis 1,., Colorado, Idaho, New York, Washington; Ontario. — 
Aster lateriflorus (1,.) Britton (A. diffusus Ait., A. miser Nutt.), Indiana, Iowa, Tennessee, 
Virginia, West Virginia. : 
Aster Lowrieanus Porter, Pennsylvania. 
