344 NORTH AMERICAN FLORA [Vo.umE 7 
DISTRIBUTION: Nova Scotia to Manitoba and southward to Virginia, central Alabama and 
aaah Texas, — —_ BR teet “ sale aber California. 
xsiccatr: Barth. Fungi Columb. , 2261, 3651, 4138; Barth. N. Am. Ured. 20, 326, 418, 
528, 728, 815, 817, 1633, 1742, 2223; Brenckle, Fungi Dak. 105, 1054; Carleton, Ured. Am. 17; Ellis & 
NE dn te age ee ery ere : es gave Ae oe 2996; D. Griff. W. Am. Fungi 2776; 
ellerm, io Fungi 26, ; Rab.-Wint. Fungi Eur. : Rab.-Wint.-Paz. Fungi 4115; 
Sydow, Ured. 2110, 2111, 2158, 2368; Thiim. Myce. Univ. 838. Peres seeeeneanaas 
101. Dicaeoma Eriophori (Thiim.) Kuntze, Rev. Gen. 3?: 468. 
1898. 
Puccinia Eriophori Thiim. Bull. Soc. Nat. Mosc. 55!: 208. 1880. 
Aecidium Ligulariae Thiim. Nuovo Giorn. Bot. Ital. 12: 196. 1880. 
Puccinia Eriophori-alpini Allesch. Verz. Siidbayern Beob. Basidiom. 22. 1884. 
Aecidium Cinerariae Rostr. Overs. Danske Vid. Selsk. Forh. 1884:17. 1884. 
O. Pycnia epiphyllous, few, inconspicuous, becoming dark brown, globoid or flattened- 
globoid, 80-96 » in diameter by 80-112 » high; ostiolar filaments compact. 
I. Aecia hypophyllous, gregarious, in irregular groups 1-10 mm. across, on larger dis- 
colored spots, cupulate, 0.3-0.5 mm. in diameter; peridium lacerate, recurved; peridial cells 
thomboidal or oblong, 19-24 by 34-42 p, the outer wall 10-13 » thick, smooth, the inner wall 
5-9 » thick, colorless, verrucose; aeciospores globoid or broadly ellipsoid, 16-19 by 18-23 u; 
wall colorless, 1-2 » thick, finely verrucose. 
On CARDUACEAR: 
Senecio aureus L,., Iowa, Michigan, New Hampshire, New York, Wisconsin. 
Senecio ductoris Piper, Oregon. ; 
Senecio Robbinsit Oakes, New Hampshire, Vermont. 
Senecio sp., British Columbia. 
II. Uredinia hypophyllous or amphigenous, often confluent in lines, 0.2-0.4 mm. wide by 
0.3-1 mm. long, oblong, tardily naked, pulverulent, brownish, ruptured epidermis noticeable; 
urediniospores globoid, obovoid or ellipsoid, 19-26 by 23-29 »; wall golden-brown, 1.5-2 u 
thick, moderately echinulate, the pores 2, superequatorial. 
III, Telia hypophyllous, scattered or in rows parallel to the veins, 0.2-0.5 mm. wide by 
0.2-2 mm. or more long, fairly early naked, pulvinate, blackish-brown, ruptured epidermis 
noticeable; teliospores ellipsoid or clavate, 16-23 by 35-60 4, rounded or acute above, con- 
stricted at septum; wall cinnamon—brown, 1.5-3 yw thick, thicker above, 4-10 4, smooth; pedicel 
length of spore or less, tinted. 
ON CYPERACEAE: 
Eviophorum angustifolium Roth (E. polystachyon L. in part), Vermont. 
Eriophorum tenellum Nutt., Maine. 
Eriophorum virginicum L., Connecticut, Indiana, Maine, Massachusetts, Wisconsin. 
Eriophorum viridicarinatum (Engelm.) Fernald (£. polystachyon latifolium A. Gray), Indiana, 
Iowa, Nebraska, New York, Oregon, Vermont, Wisconsin. 
Leucocoma alpina (L.) Rydb. (Eriophorum alpinum L.), New Hampshire, Vermont. 
TYPE Locality: Near Ssamodourowka, Siberia, on Eriophorum latifolium. 
DistR1BuTION: Connecticut to Nebraska and northward, and alpine summits in Oregon and 
British Columbia; also in northern Europe and Asia. 
ILLusTRATIOyS: Rev. Myc. 6: pl. 49, f. 28-29; Krypt.-fl. Brand. Pilze 3: f. B129. : 
Exstccat1: Barth. N. Am. Ured. 2245; Ellis, N. Am. Fungi 1425; Seym. & Earle, Econ. Fungi 54. 
102. Dicaeoma canaliculatum (Schw.) Kuntze, Rev. Gen. 3°: 466. 
1898. 
Spthaeria canaliculata Schw. Trans. Am. Phil. Soc. II. 4: 209. 1832. 
Dothidea canaliculata Berk. Grevillea 4: 103. 1876. 
Phyllachora canaliculata Sace. Syli. Fung. 2: 623. 1883. 
Aecidium compositarum Xanthii Ellis, N. Am. Fungi 10186. 1883. 
Aecidium compositarum Ambrosiae Burrill; De-Toni, in Sacc. Syll. Fung. 7: 798. 1888. 
Aecidium compositarum Xanthii Burrill; De-Toni, in Sace. Syll. Fung. 7: 799. 1888. 
Puccinia cellulosa Berk. & Curt.; Cooke, Grevillea 20: 108. 1892. 
Puccinia canaliculata Lagerh. Tromsé Mus. Aarsh. 17:51. 1894. 
Puccinia nigrovelata Ellis & Tracy; Ellis & Ev. Bull. Torrey Club 22: 60. 1895. 
Dicaeoma nigrovelata Kuntze, Rev. Gen. 34: 469. 1898. 7 
O. Pycnia amphigenous, gregarious, in small compact groups, honey-yellow becoming 
brownish, inconspicuous, globoid, 112-128 yw in diameter; ostiolar filaments up to 35 uw or more 
long. 
