552 NORTH AMERICAN FLORA [VoLuME 7 
DistrisuTion: Western Nebraska and Colorado to southern Montana and central California. 
InLustRation: Holway, N. Am. Ured. 1: pl. 38, f. 126a, b. 
Exsiccati: Barth. N. Am. Ured. 50; Clements, Crypt. Form. Colo. 139. 
69. Micropuccinia poromera (Holway) Arthur & Jackson. 
Puccinia poromera Holway, N. Am. Ured. 1:90. 1913. 
O. Pycnia unknown. 
III. Telia amphigenous or caulicolous, on irregular discolored spots, minute, 0.1-0.5 mm. 
across, gregarious and occasionally confluent, especially on petioles and stems, early naked, 
chestnut-brown, pulverulent, ruptured epidermis conspicuous; teliospores globoid, broadly 
ellipsoid, or oblong, small, variable in size, 14-26 by 26-40 », rounded at both ends, not or 
slightly constricted at septum; wall light chestnut-brown, uniformly thin, 1-1.5 ». with promi- 
nent hyaline papilla over pore of either cell, the pore in each cell usually at or near septum, 
smooth; pedicel hyaline, fragile, short. 
On AMMIACEAE: 
Angelica dilatata A. Nelson, Utah. 
TYPE LOCALITY: Wasatch Mountains, near Salt Lake City, Utah, on Angelica dilatata. 
DIstRIBUTION: Salt Lake County, Utah. 
In,ustration: Holway, N. Am. Ured. 1: pl. 42, f. 136. 
Exsiccati: Garrett, Fungi Utah. 190. 
70. Micropuccinia Ligustici (Ellis & Ev.) Arth. & Jackson; 
Arth. Bull. Torrey Club 48: 42. 1921. 
Puccinia Ligustici Ellis & Ev. Bull. Torrey Club 22: 363. 1895. 
Puccinia luteobasis Ellis & Ev. Bull. Torrey Club 24: 457. 1897. 
Dicaeoma Ligustici Kuntze, Rev. Gen. 33: 469. 1898. 
O. Pyenia unknown. 
Ill. Telia amphigenous and caulicolous, round, 0.3-0.8 mm. across, gregarious, often 
on yellowish spots, occasionally becoming confluent, especially when caulicolous, early naked, 
becoming pulverulent, chocolate-brown, ruptured epidermis conspicuous, often persisting as 
a cup-like enclosure surrounding the telia; teliospores broadly ellipsoid or oblong, ‘16-22 
by 24-34, rounded at both ends, not or scarcely constricted at septum; wall uniformly 
1.5—2 » thick, chestnut-brown, smooth, or with a few inconspicuous tubercles scattered or 
in irregular rows, the pores variable in position and each covered with a small umbo; pedicel 
colorless, fragile, short, often attached laterally. 
This species is correlated with Dicaeoma Bistortae (DC.) Kuntze, the telial characters of 
the two species being quite similar, as well as the habitats, and the family to which the hosts 
of the short-cycled form belong being the same as that of the known aecial host of the hetero- 
ecious species. 
On AMMIACEAE: 
Angelica ampla A. Nelson, Colorado. 
Angelica Grayi Coult. & Rose, Colorado, 
Atenia Gairdneri Hook. & Arn. (Carum Gairdneri A. Gray), Utah. 
Alenia Garrettii (A. Nelson) Rydb. (Carum Garrettit A. Nelson), Utah. 
rages iteaty scopulorum (A. Gray) Coult. & Rose (Ligusticum scopulorum A. Gray), 
Colorado. 
Ligusticum apiifolium (Nutt.) A. Gray, Oregon, Washington; British Columbia. 
Ligusticum Cusickii Coult. & Rose, Nevada. 
Ligusticum filicinum S. Wats., Utah. 
Ligusticum Grayi Coult. & Rose, California, Washington. 
Ligusticum Leibergi Coult. & Rose, Idaho. 
Ligusticum Portert Coult. & Rose, Colorado. 
Ligusticum sp., Montana. 
Oxypolis Fendleri (A. Gray) A. Heller, Colorado. 
TypPz Locality: Sangre de Christo Mountains, Colorado, on Ligusticum scopulorum. a 
DISTRIBUTION: Mountains of southern Colorado to western Nevada, and northward to British 
Columbia. 
ILLUSTRATION: Holway, N. Am. Ured. 1: pl. 40, f. 132a-f. 
ExsiccaTi: Barth. N. Am. Ured. 1456, 1558; Clements, Crypt. Form. Colo. 321, 322; Garrett, 
Fungi Utah. 57, 233. 
