Part 4, 1920] AECIDIACEAE 315 
N. Am. Fungi 1815, 1821, 2712; Ellis & Ev. Fungi Columb. 486, 1299, 1702, 1974, 2069, 2149; 
Garrett, Fungi Utah. 226; D. Griff. W. Am. Fungi 263, 297, 368; Kellerm. Ohio Fungi 94; Rab.- 
Wint.-Paz. Fungi Eur. 4039; Rav. Fungi Car. 1:92; Roum. Fungi Sel. 4412; Sydow, Ured. 1980, 2449. 
58. Dicaeoma Periclymeni (Schum.) Arthur & Fromme. 
Aecidium Periclymeni Schum. Enum. Pl. Saell. 2: 225. 1803. 
Aecidium Xylostei DC. Fl. Fr. 2: 240. 1805. 
Uredo Festucae DC. Fl. Fr. 6: 82. 1815. 
Caeoma Lonicerae Schlecht. Fl. Berol. 2: 115. 1824. 
Caeoma periclymenatum Link, in Willd. Sp. Pl. 62:52. 1825. 
Caeoma xylosteatum Link, in Willd. Sp. Pl. 62: 53. 1825. 
Aecidium Lonicerae Duby, Bot. Gall. 906. 1830. 
Puccinia Festucae Plowr. Gard. Chron. IIT. 8: 42, 139. 1890. 
Uredo abscondita Fautrey; Fautrey & Lambotte, Rev. Myc. 17:171. 1895. 
Dicaecoma Festucae Kuntze, Rev. Gen. 33: 468. 1898. 
OQ. Pycnia amphigenous, gregarious in small groups 3-4 mm. across, inconspicuous, 
honey-yellow, flattened-globoid, 64-98 » broad by 32-64 u high; ostiolar filaments up to 90 y, 
agglutinate into a column. 
I. Aecia hypophyllous, crowded on yellowish spots 3-5 mm. across, cupulate, 0.2-0.3 mm. 
in diameter; peridium colorless, the margin recurved and slightly lacerate; peridial cells rhom- 
bie, 19~29 by 29-39 uw, abutted, the outer wall 5-10 u thick, transversely striate, smooth, the 
inner wall thinner, 3-7 », very closely verrucose; aeciospores ellipsoid, globoid or oblong, 17-23 
by 19-29 yw; wall colorless, 1-1.5 yw, very finely and closely verrucose. 
ON CAPRIFOLIACEAE: 
Lonicera coerulea L,., New Brunswick. 
Lonicera flava Sims, Iowa. 
II. Uredinia hypophyllous, scattered, linear, 0.5-2 mm. long, early naked, pulverulent, 
yellow, ruptured epidermis conspicuous; urediniospores broadly ellipsoid, 19-23 by 20-26 u; 
wall pale-yellow, 1~1.5 » thick, moderately and rather conspicuously echinulate, the pores 
distinct, 5-7, scattered. ; 
III. Telia hypophyllous, scattered, linear, 0.5-2 mm. long, rather early naked by a longi- 
tudinal splitting of the epidermis, chestnut- or chocolate-brown, ruptured epidermis conspi- 
cuous; teliospores oblong or cylindric, 13-19 by 45-58 u, provided above with 2-5 erect prongs, 
10-25 » long, somewhat narrowed below, slightly constricted at septum; wall chestnut-brown, 
paler below, 1 », thicker above, 3~7 u, smooth; pedicel pale chestnut-brown, up to 20 u« long. 
On POACEAE: . aos : ; 
Festuca ovina L., F. rubra L.., and similar species in Europe: not yet found in North America. 
Type Locauity: Island of Zealand, Denmark, on Lonicera Periclymenum. 
DISTRIBUTION: The island of Grand Manan, New Brunswick, and a single locality in northern 
Iowa; also in Europe. ; ; 
ILLUSTRATIONS: Beitr. Krypt. Schweiz 2?: f. 27?: Krypt.-fl. Brand. Pilze 3: f. B195. 
Exsiccatt: Ellis, N. Am. Fungi 1020. 
59. Dicaeoma Cynodontis (Lacroix) Kuntze, Rev. Gen. 33: 468. 
1898. 
Aecidium Plantaginis Ces. Erb. Critt. Ital. 247. 1859. Not Dicaeoma Plantaginis Kuntze. 1898. 
Puccinia Cynodontis Lacroix, in Desmaz. Pl. Crypt. II. 655. 1859. 
O. Pycnia epiphyllous, in small groups on discolored spots, honey-yellow, becoming black- 
ish, flattened-globoid, 110-160 » broad by 60-90 » deep; ostiolar filaments short. 
I. Aecia amphigenous, in circular groups 1-3 mm. in diameter, on discolored spots, short- 
cupulate, small, 0.2-0.3 mm. broad; peridium yellowish or colorless, the margin lacerate and 
slightly recurved; peridial cells angularly oblong, 15-21 by 26-34 u, abutted, the outer wall 
smooth, transversely striate, 7-9 » thick, the inner wall coarsely verrucose, thinner, 3~5 y; 
aeciospores globoid or ellipsoid, 19-24 by 23-29 »; wall colorless, 1.5-2 u thick, closely and 
‘conspicuously verrucose. 
On PLANTAGINACEAE: : ; 
Plantago spp., in Europe and Japan, not yet found in America. 
II. Uredinia chiefly hypophyllous, scattered or in small groups, elliptic or oblong, small, 
0.3-0.6 mm. long, early naked, pulverulent, cinnamon-brown, ruptured epidermis conspicuous; 
