Part 2, 1907] AECIDIACEAE 1538 
II. Telia hypophyllous, evenly scattered over the surface, sometimes confluent, round, 
0.4-0.8 mm. across, pulvinate, soon naked, pulverulent, chestnut-brown, ruptured epi- 
dermis inconspicuous ; teliospores ellipsoid or oblong, 15-24 by 28-404, greatly constricted 
at septum, the two cells nearly equal, globoid, easily falling apart; wall chestnut-brown, 
evenly thick, 2-3, evenly and coarsely verrucose ; pedicel colorless, about one half length 
of spore, 5-8 thick, delicate. 
On RANUNCULACEAE: 
Anemone quinquefolia L. (A. nemorosa Michx.), Illinois, Indiana, Iowa, Massachu- 
setts, Michigan, New Jersey, New York, Ohio, Vermont, Wisconsin; Ontario. 
TYPE LOCALITY : Europe, on Anemone nemorosa. 
- DISTRIBUTION: Massachusetts to Ohio and Illinois, and northward into Canada; also in 
rope. 
ILLUSTRATIONS: Hedwigia Beibl. 42: 29; Holway, N. Am. Ured.1: 1. 2, 7.8; Beitr. K 
Schweiz 22: f. 73. , s aes aes la 
ExsiccaTr: Seym. & Earle, Econ. Fungi 451; Ellis & Ev. N. Am. Fungi 2722 ; Ellis & 
Fungi Columb. 78?a ; Kellerm. Ohio Fungi 106. e Paneer: 
3. Polythelis Pulsatillae (Rostr.) Arth. Résult. Sci. Congr. Bot. 
Vienne 341. 1906. 
Puccinia Pulsatillae Rostr.; Vesterg. Bot. Notiser 1902: 169. 1902. Not P, Pulsatillae Kalchb. 1865. 
Puccinia suffusca Holway, Jour. Myc. 8: 171. 1902. 
O. Pycnia epiphyllous, few and widely separated, small, brown, subcuticular. 
Ill. Telia hypophyllous, evenly scattered over the surface, never confluent, round, 
0.2-0.5 mm. across, pulvinate, long covered by the whitish epidermis, finally dehiscent by 
around pore, pulveruient, dark chestnut-brown, ruptured epidermis evident; teliospores 
elliptic-obovate, 15-28 by 30-60, the upper cell globose, the lower globoid to obovate or 
cuneate, 10-26 by 20-30, greatly constricted at septum, the two cells easily separating ; 
wall uniformly thick, 2-3, upper cell chestnut-brown, lower cell usually lighter, coarsely 
and evenly verrucose ; pedicel about one third length of spore, colorless, 5-8 » thick, delicate. 
Mesospores often abundant. 
On RANUNCULACEAE : 
Pulsatilla hirsutissima (Pursh) Britton (Anemone pulsatilla Nuttalliana A. Gray), Colo- 
rado, Iowa, Montana, South Dakota. 
TYPE LOCALITY : Ratscheberg near Teplitz, Bohemia, on Pulsattlla pratensis. 
DISTRIBUTION : Iowa to Colorado and Montana; also in Europe and Asia. 
ILLUSTRATIONS: Holway, N. Am. Ured.1: pi. 37, f. 3a; Beitr. Krypt. Schweiz 2?: f. 74. 
Exsiccati: Griff. West Am. Fungi 27? ; Sydow, Ured. 2770. 
4. Polythelis Thalictri (Chev.) Arth. Résult. Sci. Congr. Bot. 
Vienne 341. 1906. 
Puccinia Thalctrt Chev. Fl. Paris 1: 417. 1826. 
Caeoma (Uredo) Thalictri Schw. Trans. Am. Phil. Soc. II. 4: 291. 1832. 
Dicaeoma Thalictri Kuntze, Rev. Gen. Pl. 3: 470. 1898. 
O. Pycnia hypophyllous, few, sparingly scattered among the telia, papillose, chestnut- 
brown, subcuticular, depressed-hemispherical, 110-130 broad. 
III. Telia hypophyllous, evenly scattered over large areas, never confluent, round, 
0.2-0.6 mm. across, dehiscent by a pore, early naked, pulverulent, dark chestnut-brown, 
ruptured epidermis evident; teliospores ellipsoid or oblong-ovate, 17-26 by 26-524, greatly 
constricted at septum, the two cells easily separating, upper cell globoid, or rarely elliptical, 
the lower globoid, obovate or broadly cuneate, 16-26 by 18-26 ; wall dark chestnut-brown, 
uniformly thick, 2, coarsely and evenly verrucose; pedicel delicate, colorless, as long as 
the spore, wholly or partially deciduous. Mesospores usually plentiful. 
On RANUNCULACEAE : : : . . 
Thalictrum dioicum 1,., Indiana, lowa, Minnesota, New York, Pennsylvania, Wisconsin. 
Thalictrum Fendieri Engelm., Colorado, Utah, Wyoming. . 
Thalictrum polygamum Muhl. (7. Cornutt T. & G.), Connecticut, Massachusetts, New 
York, Pennsylvania, Vermont; Ontario. 
Thalictrum purpurascens L., Wisconsin. 
Thalictrum sparsifiorum Turcz., Colorado. 
Thalictrum venulosum Trel., Wyoming. 
Thalictrum sp., California. ; 
TYPE LOCALITY: Paris, France, on Thalictrum flavum. 
