556 NORTH AMERICAN FLORA [Volume 7 
77. Micropuccinia Dichondrae (Mont.) Arthur & Jackson. 
Puccinia Dichondrae Mont. in C. Gay, Fl. Chil. 8:46. 1852. 
Puccinia Berkeleyana De-Toni, in Sace. Syll. Fung. 7:717. 1888. 
Puccinia munita F. Ludwig, Zeits. Paanzenkr. 2: 133. 1892. 
Dicaeoma Berkeleyanum Kuntze, Rev. Gen. 33: 468. 1898. 
Dicaeoma Dichondrae Kuntze, Rev. Gen. 33: 468, 1898. 
Dicaeoma munitum Kuntze, Rev. Gen. 33: 469. 1898. 
Allodus Dichondrae Arth. Résult. Sci. Congr. Bot. Vienne 345. 1906. 
O. Pycnia unknown, probably not formed. 
III. Telia hypophyllous, usually evenly scattered over the entire leaf-surface and often 
extending to the petioles, round, small, 0.2-0.5 mm. across, punctiform, early naked, pul- 
verulent, chestnut-brown, the conspicuous epidermis forming a peridium-like border; telio- 
spores oblong or clavate, 14-20 by 28-45 », rounded or obtuse above, rounded or often nar- 
rowed below, constricted at septum; wall cinnamon- or light chestnut-brown, thin, 1.5-2 B, 
thickened above by sub-hyaline apiculus to 4-7», smooth; pedicel slender, equaling spore 
or shorter. 
On DICHONDRACEAE: 
Dichondra carolinensis Michx., Louisiana, Mississippi, North Carolina; Bermuda. 
Dichondra repens Forst., California. 
Dichondra sericea Sw., Guatemala. 
TYPE LocaLIty: Chile, on Dichondra sericea. 
DisTRIBuTION: Southern border of the United States southward through the West Indies 
and Central America; also in South America, Australia, and New Zealand. 
ILLUSTRATION: McAlpine, Rusts Austr. pl. 5, f. 42; pl. 40, f. 299. 
78. Micropuccinia Polemonii (Dietel & Holway) Arth. & Jackson; 
Arth. Bull. Torrey Club 48: 41. 1921. 
Puccinia Polemonii Dietel & Holway; Dietel, Bot. Gaz. 18: 255. 1893. 
?Puccinia Polemonii Stérmer, Bot. Notiser 1896: 214. 1896. 
Dicaeoma Polemonii Kuntze, Rev. Gen. 33: 470. 1898. 
‘Dasyspora Polemonii Arth. Résult. Sci. Congr. Bot. Vienne 347. 1906. 
O. Pycnia unknown. 
III. Telia amphigenous and petiolicolous, small, round, gregarious and confluent in 
small groups 0.5—2 mm. across, or more elongate and occurring in lines on the petioles, compact, 
pulvinate, early naked, golden- or cinnamon-brown, becoming whitish from germination, 
ruptured epidermis not conspicuous; teliospores oblong or cylindric, 13-18 by 26-42 u, obtuse 
above, rounded or somewhat narrowed below, strongly constricted at septum; wall colorless 
or cinnamon-brown, 1-1.5 yw thick, thickened at apex, 4-6 4, smooth; pedicel colorless, fragile, 
as long as spore or shorter. 
On POLEMONIACEAE: 
Polemonium intermedium (A. Brand) Rydb., Idaho. 
Polemonium occidentale Greene, California. 
Polemonium repians L., Indiana. 
TYPE LocaLity: Kootenai County, Idaho, on Polemonium caeruleum, now determined as P. 
intermedium. 
DIsTRIBUTION: Local in Idaho, central California, and southern Indiana. 
79. Micropuccinia gulosa (H. S. Jackson) Arthur & Jackson. 
Puccinia gulosa H.S. Jackson; Arth. Bull. Torrey Club 47: 470. 1920. 
O. Pycnia unknown. 
III. Telia chiefly caulicolous and petiolicolous, oval or elliptic, gregarious and confluent, 
extending 1-2 cm. along stems and petioles, early naked, cinnamon-brown, pulverulent, 
ruptured epidermis noticeable; teliospores ellipsoid or oblong, 15-18 by 26-35 », rounded 
above and below, strongly constricted at septum; wall cinnamon-brown, uniformly 1.5-2 p 
thick, the apical pore covered with a low sub-hyaline umbo, 2.5—3 y thick, finely but noticeably 
verrucose-rugose, best seen when dry; pedicel colorless, short, deciduous. 
On POLEMONIACEAE: 
Polemonium pulcherrimum Hook., California. 
TypPE LocaLity: Colby Mountain, Yosemite National Park, California, on Polemonium pulcher- 
ry imum. . 
DISTRIBUTION: Known only from the type locality. 
