Parr 8, 1922] AECIDIACEAE 565 
mm. across, sometimes confluent, especially in center, often arranged in concentric manner 
near margin of groups, large, 1-2 mm. across, early naked, pulverulent, chestnut-brown, 
ruptured epidermis conspicuous; teliospores broadly ellipsoid or oblong, 20-26 by 32-38 », 
rounded above and below, slightly constricted at septum; wall cinnamon-brown, 1.5-2.5 
thick, not or very slightly thickened over pores, appearing smooth in water, obscurely verrucose- 
rugose when dry; pedicel colorless, short, deciduous. 
ON ScROPHULARIACEAE: 
Chelone nemorosa Dougl., Oregon, Washington. 
TyPE LocaLity: Chiquash Mountains, Skamania county, Washington, on Chelone nemorosa. 
DisTRiBuTion: Mountains of southern Washington and adjacent Oregon. 
Exsiccati: Barth. N. Am. Ured. 128. 
104. Micropuccinia Pentstemonis (Peck) Arthur & Jackson. 
Puccinia Pentstemonis Peck, Bull. Torrey Club 12: 35. 1885. 
Puccinia mexicana Dietel & Holway; Holway, Bot. Gaz. 24: 33. 1897. 
Puccinia _circinans Ellis & Ev. Bull. Torrey Club 27: 61. 1900. Not P. circinans Fuckel, 1870, 
nor Dietel, 1897. 
Puccinia Toumeyi Sydow; Sacc. Syll. Fung. 16: 299. F 1902. 
-Puccinia chasmatis Ellis & Ev. Jour. Myc. 8: 15. My 1902. 
O. Pycnia not seen. 
III. Telia amphigenous and caulicolous, usually hypophyllous, densely gregarious in 
groups 5-15 mm. across, on discolored often purplish spots, usually distinct but occasionally 
confluent in center, often arranged in circinate manner at margin, small, round, 0.2-0.5 mm. 
across, compact, rarely pulvinate, somewhat tardily naked, blackish-brown, pulvinate sori 
becoming cinereous by germination, ruptured epidermis conspicuous; teliospores ellipsoid, 
‘oblong, or obovate, 18-26 by 32-48 u, rounded or obtuse above, rounded or narrowed below, 
not or slightly constricted at septum; wall cinnamon-brown, 1.5-3 4, darker and thickened 
at apex, 5-10 u, smooth; pedicel colorless or slightly tinted next to spore, firm, once to twice 
length of spore. 
This species is correlated with Dicaeoma Andropogonis (Schw.) Kuntze, corresponding in 
part to the race having aecia on Scrophulariaceae. 
On ScROPHULARIACEAE: 
Penstemon azureus Benth., California. 
Penstemon Bridgesii A. Gray, California. 
Penstemon campanulatus Willd., Hidalgo, Mexico (state). 
Penstemon deustus Dougl., California, Wyoming. 
Penstemon diffusus Dougl., Oregon. 
Penstemon linarioides A. Gray, Arizona. 
Penstemon Roezli Regel, California. 
Penstemon spectabilis Thurber, Arizona, California. 
Tyre LocaLity: Arizona, on Penstemon linarioides. 
DISTRIBUTION: Eastern Oregon to Western Wyoming and southward in the mountains through 
Mexico. 
ILLUSTRATION: Sydow, Monog. Ured. 1: pl. 16, f. 239. 
Exsiccati: Barth. N. Am. Ured. 1259; D. Griff. W. Am. Fungi 393. 
105. Micropuccinia Seymeriae (Burrill) Arth. & Jackson; Arth. 
Bull. Torrey Club 48: 41. 1921. 
Puccinia Seymeriae Burrill, Bot. Gaz. 9: 189. 1884. 
Dicaeoma Seymeriae Kuntze, Rev. Gen. 33: 470. 1898. 
Puccinia Gerardiae Sydow, Ann. Myc. 1: 18. 1903. 
Dasyspora Seymeriae Arth. Résult. Sci. Congr. Bot. Vienne 347. 1906. 
O. Pycnia unknown, probably not formed. 
III. Telia hypophyllous and caulicolous, rarely epiphyllous, densely gregarious and more 
or less confluent in orbicular groups 3-10 mm. across, on discolored spots, or elongate and 
causing some hypertrophy when caulicolous, roundish, small, 0.2-0.5 mm. across, somewhat 
tardily naked, compact, slightly pulvinate, chestnut-brown, ruptured epidermis usually 
noticeable; teliospores ellipsoid, oblong, or clavate, 16-20 by 26-38 y, rounded or obtuse 
above, rounded or occasionally narrowed below, not or very slightly constricted at septum; 
wall dark cinnamon-brown, 1.5-3 w thick, gradually thickened at apex, 5-9 », smooth; pedicle 
firm, colorless, once to twice length of spore. 
