Part 8, 1922] AECIDIACEAE 553 
71. Micropuccinia porphyrogenita (M. A. Curt.) Arth. & Jackson; 
Arth. Bull. Torrey Club 48: 41. 1921. 
Puccinia acuminata Peck, Ann. Rep. N. Y. State Mus. 23:57. 1873. Not P. acuminate Fuckel, 1870. 
Puccinia porphyrogenita M. A. Curt.; Thiim. Myc. Univ. 545. 1876. 
Dicaeoma porphyrogenitum Kuntze, Rev. Gen. 33: 478. 1898. 
Dasyspora acuminata Arth. Résult. Sci. Congr. Bot. Vienne 346. 1906. 
O. Pycnia unknown. 
III. Telia hypophyllous, scattered or crowded in groups up to 5 mm. in diameter, opposite 
red spots, round or oblong, 1~2 mm. across, early naked, pulvinate, chocolate-brown, ruptured 
epidermis conspicuous; teliospores oblong-clavdte or clavate, 16-23 by 45-64 u, obtuse, acute, 
or acuminate above, narrowed below, constricted at septum; wall chestnut-brown, 1.5~3 » thick, 
thickened at apex, 7-20, smooth; pedicel yellowish-brown, about as long as spore, per- 
sistent. 
On CoRNACEAE: 
Chamaepericlimenum canadense (1,.) Asch. & Graebn. (Cornus canadensis J,.), Alaska, 
Idaho, Maine, Minnesota, Montana, New Hampshire, New York, Oregon, Wash- 
ington; Newfoundland; British Columbia, Nova Scotia. 
TYPE Locality: Sandlake, New York, on Cornus canadensis. 
DisTRIBUTION: Newfoundland and Maine along northern border of United States and ad- 
jacent Canada to Oregon and Alaska. 
; ‘ener Bull. Lab. Nat. Hist. Univ. Iowa 32: pl. 3, f. 14; Holway, N. Am. Ured. 
2 Dl. 44, f. . 
Exsiccati: Arth. & Holway, Ured. Exs. Ic. 14; Barth. Fungi Columb. 4948; Barth. N. Am. 
Ured. 1127, 1518; Ellis, N. Am. Fungi 1032; Ellis & Ev. Fungi Columb. 1287, 1653; Rel. Farl. 270; 
Seym. & Earle, Econ. Fungi 208; Sydow, Ured. 333; Thim. Myc. Univ. 545. 
72. Micropuccinia Dayi (G. W. Clinton) Arth. & Jackson; 
Arth. Bull. Torrey Club 48: 40. 1921. 
Puccinia Dayi G. W. Clinton; Peck, Ann. Rep. N. Y. State Mus. 28: 60, 1876. 
Dicaeoma Dayi Kuntze, Rev. Gen. 33: 468. 1898. 
Dasyspora Dayi Arth. Résult. Sci. Congr. Bot. Vienne 346. 1906. 
Puccinia Glaucis Arth. Bull. Torrey Club 37: 571. 1910. 
O. Pyenia unknown. 
Ill. Telia mostly hypophyllous, crowded or confluerit, sometimes circinating opposite 
reddish spots 1-6 mm. across, round, 0.1-0.8 mm. in diameter, early naked, pulvinate, light 
chocolate-brown becoming cinereous by germination, ruptured epidermis evident; teliospores 
oblong or oblong-clavate, 16-24 by 40-584, obtuse or acute above, rounded or narrowed 
below, constricted at septum; wall cinnamon-brown, 1.5-2.5 », thickened at apex, 5-10 yz, 
smooth; pedicel tinted, about length of spore. 
This species is correlated with Nigredo Polemoniit (Peck) Arth. and Dicaeoma Distichlidis 
(Ellis & Ev.) Kuntze, the telial characters of the three species being similar or identical, 
and the hosts of the aecial stage of the two heteroecious species being the same as those of 
the short-cycled species. This agreement doubtless indicates a common origin for the three 
species. 
ON PRIMULACEAE: 
Glaux maritima L., Nova Scotia. 
Steironema ciliatum (L.) Raf. (Lysimachia ciliata L.), Indiana, Iowa, Michigan, Montana, 
New York, West. Virginia; Alberta, Ontario. 
Steironema lanceolatum (Walt.) A. Gray (Lysimachia lanceolata Walt.), Wisconsin. 
TYPE Locality: Buffalo, New York, on Lysimachia ciliata. 
DISTRIBUTION: West Virginia to southern Indiana and northwestern Montana, northward 
into Canada. 
ILLUSTRATION: Bull. Lab. Nat. Hist. Univ. Iowa 3?: pl. 1, f. 8, 
Exsiceatt: Arth. & Holway, Ured. Exs. Ic. 8; Barth. Fungi Columb. 2661, 4145; Barth. 
N. Am. Ured. 138, 941; Ellis. N. Am. Fungi 1453; Ellis & Ev. Fungi Columb. 189; Seym. & Earle, 
Econ. Fungi Suppl. B10; Sydow, Ured. 2413, 2518. 
73. Micropuccinia Comandrae (Peck) Arth. & Jackson; Arth. 
Bull. Torrey Club 48: 40. 1921. 
Puccinia Comandrae Peck, Bull. Torrey Club 11:49. 1884. 
Dicaeoma Comandrae Kuntze, Rev. Gen. 33: 468. 1898. ; 
Dasyspora Comandrae Arth. Résult. Sci. Congr. Bot. Vienne 346. 1906, 
