324 NORTH AMERICAN FLORA [VOLUME 7 
III. Telia mostly hypophyllous and caulicolous, numerous, distinct or sometimes con- 
fluent, oblong, 0.5-1.5 mm. long, early naked, compact, dark chocolate-brown, ruptured epi- 
dermis conspicuous; teliospores ellipsoid or oblong, 15-20 by 29-37 nu, rounded above, rounded 
or tapering below, scarcely constricted at septum; wall chestnut-brown, 2-2.5 » thick, 4-7 » 
above; pedicel golden-brown, once to twice length of spore. 
On Poackak: 
Tridens flavus (L,.) Hitche. (Windsoria poaeformis Nutt., Triodia cuprea Jacq., Tricuspis 
seslerioides Torr., Poa quinquefida Pursh, Sieglingia seslerioides Scribn.), Alabama, 
Arkansas, Delaware, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maryland, 
Missouri, Mississippi, New Jersey, North Dakota, Oklahoma, Pennsylvania, South 
. Carolina, Tennessee, Texas, Virginia, West Virginia, Wisconsin; Ontario. 
Tridens muticus (Torr.) Nash, Texas. 
: TYPE Locatity: Bethlehem, Pennsylvania, on ‘ Windsoria (Poa) quinquedentata,” now iden- 
tified as Tridens flavus. 
DistRrBurTIoN: Southeastern New York to Ontario, North Dakota, Alabama, and Texas. 
Exsiccati: Barth. Fungi Columb. 2272, 4277, 4678, 5081, 5082; Barth. N. Am. Ured. 173, 
174, 977, 1181, 1780, 2036; Ellis & Ev. N. Am. Fungi 1819, 3049; Ellis & Ev. Fungi Columb. 342, 
492, 1581, 1671; Rab.-Wint. Fungi Eur. 3020; Roum. Fungi Gall. 3859; Seym. & Earle, Econ. Fungi 
59, 88; Sydow, Ured. 1735; Zahtbr. Krypt. 2009. 
73. Dicaeoma Redfieldiae (Tracy) Kuntze, Rev. Gen. 3*: 470. 
1898. 
Puccinia Redfieldiae Tracy, Jour. Myc. 7: 281. 1893. 
Oand I. Pycnia and aecia unknown. 
II. Uredinia amphigenous, few, narrowly oblong or linear, 1-3 mm. long, early naked, 
cinnamon-brown, pulverulent, ruptured epidermis conspicuous; urediniospores ellipsoid, 
18-24 by 24-29 uw; wall golden- or cinnamon-brown, 2.5-3.5 » thick, closely and rather finely 
verrucose, the pores 4, equatorial. 
III. Telia amphigenous, numerous, often crowded and confluent, oblong or oblong-linear, 
0.5-3 mm. long, early naked, rather compact, pulvinate, dark chocolate-brown, ruptured 
epidermis conspicuous; teliospores ellipsoid or broadly ellipsoid, 21-26 by 33-48 yu, rounded at 
both ends or obtuse above, slightly constricted at septum; wall chestnut-brown, smooth, 1.5-2 u 
thick, moderately thickened above, 5-8 »; pedicel slightly tinted or colorless, stout, once to 
twice length of spore. 
ON POACEAE: 
Redfieldia flexuosa (Thurber) Vasey, Kansas, Nebraska, North Dakota. 
TYPE LOCALITY: Kansas, on Redfieldia flexuosa. 
DISTRIBUTION: Southwestern North Dakota to central Kansas. 
Exsiccatt: Barth. Fungi Columb. 2775; Barth. N. Am. Ured. 56; Brenckle, Fungi Dak. 466. 
74. Dicaeoma Eatoniae Arth. Proc. Ind. Acad. Sci. 1903: 148. 
1904. 
Aecidium Ranunculi Schw. Schr. Nat. Ges. Leipzig 1:67. 1822. Not A. Ranunculi Schum. 1803; 
nor Dicaeoma Ranunculi Kuntze, 1898. 
Puccinia Eatoniae Arth. Jour. Myc. 10:18. 1904. 
O. Pycnia hypophyllous, scattered over large areas, preceding or among the aecia, honey- 
yellow, flattened-globoid in vertical section, 90-110 » broad by 70-80 u high; ostiolar filaments 
60~70 p long. 
J. Aecia hypophyllous, unevenly scattered over large areas, from a distributed mycelium, 
low-cupulate, 0.3-0.5 mm. in diameter, not accompanied by hypertrophy; peridium colorless, 
short, the margin recurved and irregularly eroded; peridial cells angularly ellipsoid, 13-23 by 
23-32 w, overlapping, the outer wall smooth, thick, 6-8 u, transversely striate, the inner wall 
coarsely verrucose, thinner, 3-4 »; aeciospores globoid or ellipsoid, 13-16 by 16-23 2; wall 
colorless or pale-yellow, about 1.5 » thick, finely and evenly verrucose. 
ON RANUNCULACEAE: ot . 
Ranunculus abortivus L., Delaware, Illinois, Indiana, Iowa, Michigan, Missouri, New York, 
North Carolina, North Dakota, Ohio, Pennsylvania, South Carolina, South Dakota, 
West Virginia, Wisconsin; Ontario. 
Ranunculus calthaeflorus Greene, Colorado. ee 
Ranunculus micranthus Nutt. (R. abortivus micranthus A. Gray), West Virginia. 
