476 NORTH AMERICAN FLORA (Volume 7 
Gnas Macounii Greene (G. decurrens Ives, not L.), Arizona, New York, Vermont; 
ntario. 
Cae oblusifolium L. (G. polycephalum Michx.), New York, Pennsylvania, West 
irginia, : 
Gnaphalium oxyphyllum DC., Mexico (state). 
Gnaphalium ramosissimum Nutt., California. 
Gnaphalium semiamplexicaule DC., Mexico (state). 
Gnaphalium sp., Oaxaca, Veracruz; Guatemala. 
TYPE LOCALITY: Bethlehem, Pennsylvania, on Gnaphalium polycephalum. 
Distrispution: On the Atlantic and Pacific borders of North America. 
Exsiccatr: Barth. N. Am. Ured. 549; Ellis & Ev. Fungi Columb. 1285, 1764; Ellis & Ev. N. 
Am. Fungi 3569; Sydow, Ured. 1773. 
46. Allodus Desmanthodii (Dietel & Holway) Arth. Résult. 
Sci. Congr. Bot. Vienne 345. 1906. 
Puccinia Desmanthodii Dietel & Holway; Holway, Bot. Gaz. 31: 334. 1901. 
O. Pycnia not seen. 
I. Aecia amphigenous, in small, loose groups on discolored areas, sometimes occurring 
singly, 0.2-0.3 mm. in diameter, cupulate, short; peridium when old failing away and leaving 
the raised epidermis conspicuous; peridial cells rhomboidal, 18-21 by 30-40 p, the outer wall 
5~7 w thick, striate, the inner wall about 3» thick, rather coarsely verrucose; aeciospores glo- 
boid, 14-19 by 17-20 uw; wall colorless, 1-1.5 w thick, with deciduous tubercles. 
TII. Telia hypophylious, gregarious, over large areas 20 mm. or more across, round, 
punctiform or pulvinate, long covered by the epidermis, with dark-brown stromata lining 
the sori; teliospores elliptic or terete, 12-16 by 45-61 yu, rounded or narrowed at both ends, 
slightly or not constricted at septum; wall cinnamon-brown, 1.5-2 » thick, smooth, 5-8 u 
thick above, concolorous; pedicel cinnamon-brown, up to length of spore. 
On CARDUACEAE: 
Despanthodium fruticosum Greenman, Jalisco. 
Des%hanthodium ovatum Benth., Oaxaca. 
TYPE LOcALIty: Oaxaca, Mexico, on Desmanthodium ovatum, 
DistriBvrion: South-central Mexico. 
Exsrcecattr: Barth. N. Am. Ured. 234, 1540. 
47. Allodus Ancizari (Mayor) Arthur & Orton. 
Puccinia Ancizari Mayor, Mém. Soc. Neuch. Sci. Nat. 5: 525. 1913. 
O. Pycnia amphigenous, crowded in small groups 0.2-0.5 mm. across, noticeable, honey- 
yellow becoming light-brown, globoid or ellipsoid, 128-160 by 145~—175 uw; ostiolar filaments 
95-115 w long, projecting slightly beyond the ostiole. 
I. Aecia amphigenous, few, in groups with the pycnia on slightly yellowish spots, globoid, 
deep-seated, long covered by the overarching host-tissue, finally. opening by a small pore; 
peridium wanting; aeciospores ellipsoid or globoid, 21-28 by 32-45 y; wall colorless, 1.5-2.5 » 
thick, closely or moderately echinulate. 
III. Telia hypophyllous, scattered or in small groups, round, 0.2-0.8 mm. in diameter, 
early naked, pulvinate, golden-brown, becoming somewhat cinereous from germination, rup- 
tured epidermis inconspicuous; teliospores oblong or ellipsoid, 23-29 by 60-77 u, rounded above 
and below, somewhat constricted at septum; wall colorless or pale-yellow, thin, 1 u, thickened 
above by an umbo up to 7 uw, smooth; pedicel colorless, fragile, up to half length of spore. 
On CARDUACEAE: 
Baccharis lancifolia Less., Guatemala. ‘ 
TYPE LOCALITY: Antioquia, Colombia, on Baccharis nitida. 
DISTRIBUTION: Guatemala; also in South America. 
48. Allodus cornuta (Jackson & Holway) Arthur & Orton. 
Puccinia cornuta Jackson & Holway; Arth. Am. Jour. Bot. 5: 533. 1918. 
QO. Pycnia chiefly epiphyllous, occasionally amphigenous on the veins, crowded on yellow- 
ish areas I1-1.5 cm. across, conspicuous, dark-brown, globoid, 75-100 « in diameter; ostiolar 
filaments 70-80 yu long. 
I. Aecia hypophyllous, scattered, usually on the veins with the telia, long-cylindric and 
slightly curved, 2-3 mm. long, 0.1 mm. in diameter, soon breaking up into cylindric fragments; 
