Part 8, 1922] AECIDIACEAE 557 
80. Micropuccinia Hydrophylli (Peck & Clinton) Arth. & 
Jackson; Arth. Bull. Torrey Club 48: 42. 1921. 
Puccinia Hydvophylli Peck & Clinton; Peck, Ann. Rep. N. Y. State Mus. 30: 54. 1878. 
Dicaeoma Hydrophylli Kuntze, Rev. Gen. 34: 469. 1898. 
0. Pycnia unknown. 
III. Telia hypophylious and petiolicolous, occasionally epiphyllous, round, 0.5-1 mm. in 
diameter, scattered or more commonly gregarious and confluent on yellowish spots 0.2-1 
em. across, early naked, chestnut-brown, pulverulent, ruptured epidermis noticeable; telio- 
spores broadly ellipsoid, 11-20 by 23-30 4, rounded above and below, slightly constricted 
at septum; wall cinnamon-brown, uniformly 1-1.5 4 thick, not or scarcely thickened over 
pores, minutely and moderately verrucose, with conic projections, somewhat less prominent 
near base of spore; pedicel colorless, short, deciduous. 
On HyDROPHYLLACEAE: 
Hydrophyllum capitatum Dougl., Colorado, Utah. 
Hydrophyllum Fendleri (A. Gray) A. Heller, Colorado. 
Hydrophyllum occidentale A. Gray, California. 
Hydrophyllum virginianum 1,., Iowa, Nebraska, New York, North Dakota, South Dakota, 
Wisconsin. 
Hydrophyllum Watsonii (A. Gray) Rydb., Utah. 
TYPE LocaLity: Buffalo, New York, on Hydrophyllum virginianum. 
DISTRIBUTION: Northwestern New York to central Colorado and central California, and north- 
ward. 
Exsiccatt: Barth. Fungi Columb. 3945; Barth. N. Am. Ured. 346; Brenckle, Fungi Dak. 
490; Carleton, Ured. Am. 16; Ellis, N. Am. Fungi 1043; Ellis & Ev. Fungi Columb. 1855; Garrett, 
Fungi Utah. 30, 81; Sydow, Ured. 472, 1927. 
81. Micropuccinia Romanzoffiae (H. S. Jackson) 
Arthur & Jackson. 
Puccinia Romanzoffiae H. S. Jackson, Brooklyn Bot. Gard. Mem. 1: 268. 1918. 
O. Pycnia not seen. 
Ill. Telia chiefly hypophyllous and petiolicolous, crowded in confluent groups 1-2 mm. 
across, or covering extensive areas on the petioles, small, early naked, pulverulent, chestnut- 
brown, ruptured epidermis noticeable; teliospores somewhat irregularly ellipsoid or oblong, 
19-24 by 34-42 y», rounded above and below, not or scarcely constricted at septum; wall 
chestnut-brown, 2-3 u thick,- with large sparsely distributed irregular tubercles, thickened 
at apex by a low sub-hyaline wmbo, 4-5 y, the pore of lower cell at septum, similarly thickened; 
pedicel colorless, short, deciduous. 
ON HyDROPHYLLACEAE: . 
Romanzoffia sitchensis Bong., Oregon. 
TYPE LOCALITY: Mount Jefferson, Oregon, on Romanzoffiia sitchensis. 
DISTRIBUTION: Known only from the type locality. 
82. Micropuccinia Phaceliae (Sydow & Holway) 
Arthur & Jackson. 
Puccinia Phaceliae Sydow & Holway; Sydow, Monog. Ured. 1: 314. 1902. 
O. Pycnia not seen. 
TH. Telia amphigenous, in compact, roundish groups 1-5 mm. across, blackish, per- 
manently covered by epidermis, compound by development of chestnut-brown stroma com- 
posed of irregularly clavate paraphysoid hyphae, 48-64 » long; teliospores angularly clavate 
or cylindric, 18-20 by 35-48 », rounded or truncate above, narrowed below, not constricted 
at septum; wall thin, 1-1.5 4, light chestnut-brown, dark chestnut-brown and thickened 
at apex, 3-7 », smooth; pedicel short, colored like spore; mesospores occasionally intermixed. 
This species is correlated with one of the races of Dicaeoma apocryptum (Ellis & Tracy) 
Kuntze, the telial characters of the two species being essentially the same, and the host of 
the short-cycled species corresponding to a group of aecial hosts of the heteroecious species. 
On HyDROPHYLLACEAE: 
Phacelia sericea (Graham) A. Gray, Washington. 
Typz LocaLiry: Mount Tacoma, Washington, on Phacelia circinata, error for P. sericea. 
DISTRIBUTION: Known only from the type locality. 
Exsiccati: Barth. N. Am. Ured. 1464. 
