Part 4, 1920] AECIDIACEAE 283 
Andropogon glomeratus (Walt.) B.S.P. (A. corymbosus Nash), Georgia. 
Andropogon Hallii Hack., Colorado, Kansas, Nebraska, Nevada, North Dakota. 
Andropogon Pringlei Scribn. & Merr., Mexico (state). 
Andropogon scoparius Michx. (Schizachyrium scoparium Nash), Alabama, Arizona, Arkansas, 
Colorado, Delaware, Iowa, Indiana, Kansas, Massachusetts, Michigan, Missouri, Neb- 
raska, Nevada, New York, North Dakota, Ohio, Oklahoma, Pennsylvania, South 
Carolina, South Dakota, Tennessee, Texas, Vermont, Wisconsin. 
Andropogon ternarius Michx. (A. argyraeus Schultes), Alabama, South Carolina, Texas. 
Andropogon virginicus L,., Alabama, Connecticut, Illinois, North Carolina, New Vork, 
Oklahoma, Pennsylvania, Virginia. 
Fi _TYPE Locality: Bethlehem, Pennsylvania, on Andropogon sp., now determined as A. sco- 
arius. 
DistR1iBurTion: Along the southern border of Canada and throughout the United States except 
the Pacific slope; locally in Mexico and Guatemala, 
ILLUSTRATIONS: Bull. Lab. Nat. Hist. Univ. Iowa 5: pl. 2, f. 39a-k. 
Exsiccati: Arth. & Holway, Ured. Exs. Ic. 39a-k; Barth. Fungi. Columb. 2269, 2465, 2652, 
2754, 3061, 3302, 3541, 3542, 3833, 3929, 3964, 4160, 4254; Barth, N. Am. Ured, 121, 260, 324, 325, 
362, 527, 617, 618, 763, 964, 1129, 1741, 2136; Brenckle, Fungi Dak. 83, 83a, 315, 368; Carleton, 
Ured. Am. 46; Clements, Crypt. Form. Colo. 142, 598, 599; Ellis, N. Am. Fungi 224, 1433, 1470; 
Ellis & Ev. N, Am. Fungi 1813, 2710; Ellis & Ev. Fungi Columb. 1376, 1457, 2104, 2105; D. Griff. 
N. Am. Fungi 34, 93; Kellerm. Ohio, Fungi 54; Kellerm. & Swingle, Kans. Fungi 28, 29; Rab.-Wint. 
Fungi Eur. 3018, 3222, 3320; Roum. Fungi Sel. 4618, 4834, 5514; Seym. & Earle, Econ. Fungi 75, 
75b; Seym, & Earle, Econ. Fungi Suppl. B30; Shear, N. V. Fungi 322; Sydow, Ured. 57, 850, 1012, 
1057, 1165 in part, 2117, 2409; Thiim. Myc. Univ. 1225, 1424; Zahlbr. Krypt. 1412. 
8. Dicaeoma venustulum (Arth.) Arthur & Fromme. 
Uredo venustula Arth. Mycologia 8:21. 1916. 
Puccinia venustula Arth. Mycologia 10: 128. 1918. 
O and I. Pyenia and aecia unknown. 
Il. Uredinia hypophyllous, scattered, oblong or linear, 0.3-0.8 mm. long, early naked, 
chestnut-brown, ruptured epidermis evident; paraphyses numerous, prominent, upright, 
clavate-capitate, 16-23 by 40-64 4, the wall golden- or chestnut-brown above, paler below, 
1.5-3 » along the stalk, 6-10 « above; urediniospores broadly ellipsoid or globoid, 18-23 by 
22-27 w; wall light chestnut-brown, 1-1.5 » thick, closely and finely echinulate, the pores dis- 
tinct, 4, equatorial. 
III. Telia mostly hypophyllous, scattered, oblong or linear, 0.2—1 mm. long, early naked, 
compact, blackish, ruptured epidermis evident; teliospores clavate or ellipsoid, 19-23 by 39- 
50 uw, rounded at both ends or somewhat narrowed below; wall chestnut-brown, 2-3 », much 
darker and thicker above, 9~10 4, smooth; pedicel short, chestnut-brown. 
On PoackaE: 
Andropogon brevifolius Sw. (Schizachyrium brevifolium Nees), Costa Rica; Porto Rico. 
TYPE LocaLity: Las Marias, Porto Rico, on Andropogon brevifolius. 
DISTRIBUTION: West Indies and Central America. 
9. Dicaeoma Kaernbachii (P. Henn.) Arthur & Fromme. 
Uvedo Kaernbachii P. Henn. Bot. Jahrb. 18: Beibl. 44: 23. 1894. 
Puccinia Kaernbachii Arth. Bull. Torrey Club 46: 110. 1919. 
O and I. Pyenia and aecia unknown. 
II. Uredinia hypophyllous, numerous, in lines, often confluent, elliptic, 0.5-1.3 mm. in 
length, long covered by the epidermis, finally opening by a longitudinal slit, pulverulent, 
chestnut-brown, ruptured epidermis conspicuous; paraphyses encircling the sori, usually 
erect, clavate-capitate, 15-18 by 32-55 uw, the wall pale cinnamon-brown, 2—2.5 yu thick, thicker 
at apex, 7-10 wu, smooth; urediniospores broadly ellipsoid or obovoid, 18-24 by 26-32 yu; wall 
chestnut-brown, 1.5-2 thick, uniform, finely and closely echinulate, the pores usually 4, 
equatorial. 
III. Telia hypophyllous, numerous, scattered, oblong or linear, 0.3-1 mm. in length, 
long covered by the epidermis, finally dehiscent by a longitudinal slit, compact, dark chestnut- 
brown, ruptured epidermis conspicuous; teliospores oblong or oblong-ellipsoid, 16-19 by 35- 
48 w, usually rounded above and below, moderately constricted at septum; wall chestnut- 
brown, 1-2 » thick, thicker at apex, 5-7 », smooth; pedicel concolorous, fragile. 
On PoaceEaE: : F i ; 
Andropogon condensatus H.B.K. (Schizachyrium condensatum Nees), San Luis Potosi; 
Panama. : . . : 
Andropogon stolonifer (Nash) Hitche. (Schizachyrium stoloniferum Nash), Florida. 
