Part 7, 1922] AECIDIACEAE 511 
59, Bullaria suaveolens (Pers.) Arth. Résult. Sci. Congr. 
Bot. Vienne 346. 1906. 
Uredo suaveolens Pers. Obs. Myc. 2:24. 1799. 
Uredo Serratulae Schum. Enum. Pl. Saell. 2: 231. 1803. 
Hypodermium (Uredo) obtegens Link, Ges. Nat. Freunde Berlin Mag. 7:27. 1815. 
Caeoma suaveolens Schlecht. Fl. Berol. 2: 127. 1824. 
Erysibe suaveolens Wallr. Fl. Crypt. Germ. 2: 206. 1833. 
Sphaeronema Cirsii Lasch, Bot, Zeit. 4: 878. 1846. 
Puccinia obtegens Tul. Ann. Sci. Nat. Bot. IV, 2:87. 1854. 
Trichobasis suaveolens Lév.; Berk. Outl. Brit. Fung. 332. 1860. 
Puccinia suaveolens Rostr. Forh. Skand. Nat. 11: 339. 1874. 
Aecidiolum Cirsii Sace. Michelia 1:12. 1877. 
Dicaeoma suaveolens Kuntze, Rev. Gen. 33: 470. 1898. 
O. Pycnia hypophyllous or epicostal and caulicolous, scattered evenly over large areas 
preceding or accompanying the primary uredinia, conspicuous, punctiform, globoid or some- 
what conic, 90-185 u broad, two thirds as high; pycniospores elliptic, 1 by 3 x. 
II. Uredinia of the primary form hypophyllous and caulicolous, round, 0.3-0.5 mm. 
across, scattered evenly over large areas, often confluent, early naked, pulverulent, chestnut- 
brown, ruptured epidermis conspicuous; uredinia of the secondary form scattered or gre- 
garious; urediniospores globoid or broadly ellipsoid, 22-26 by 24-28 u; wall thin, 1-1.5 y, 
cinnamon-brown, closely and minutely echinulate, the pores 3, equatorial. 
III. Telia hypophyllous and caulicolous, round, 0.3-0.5 mm. across, evenly scattered 
over large areas or somewhat gregarious, coalescing, or occasionally irregularly scattered, 
early naked, pulverulent, chestnut-brown, ruptured epidermis conspicuous; teliospores ellip- 
soid, 20-24 by 30-38 u, rounded at both ends, slightly constricted at septum; wall light chest- 
nut-brown, uniformly thin, 1.5—-2 y, closely and finely verrucose, the pore of lower cell half 
way between septum and base; pedicel colorless, fragile, short. 
ON CaRDUACHAE: 
Cirsium arvense (L..) Scop. (Carduus arvensis Robson, Cnicus arvensis Hoffm., Serratula 
arvensis L,.), Maine, Massachusetts, Michigan, New Jersey, New York, Pennsylvania, 
eatin Island, South Dakota, Utah, Vermont, Wisconsin; Nova Scotia, Ontario, 
Quebec. 
TYPE LocaLity: Europe, on Serratula arvensis. 
DISTRIBUTION: New Jersey to South Dakota northward into Canada, and in Utah; also in 
Europe and Japan. 
ILLUSTRATIONS: Zeits. Pflanzenkr. 9: 292, f. 17; Grove, Brit. Rust Fungi f. 97. 
Exsiccati: Barth. Fungi Columb. 3562, 3854, 4155; Barth. N. Am. Ured. 855, 1358, 1664, 
1957; Ellis & Ev. Fungi Columb. 484; Ellis, N. Am. Fungi 1056; Seym. & Earle, Econ. Fungi 
303a—d, 304. 
60. Bullaria Cyani (Schleich.) Arth. Résult. Sci. Congr. 
Bot. Vienne 346. 1906. 
Uredo Cyani Schleich. (Pl. Crypt. Helv. 95, hyponym. 1805); DC. Fl. Fr. 6:74. 1815. 
Puccinia Cyani Pass.; Rab. Fungi Eur. 1767. 1873. 
O. Pycnia not seen. 
II. Uredinia amphigenous or chiefly hypophyllous and caulicolous, scattered over wide 
areas evidently from a distributed mycelium, round or elliptic, 0.2-0.8 mm. across, early 
naked, pulverulent, dark cinnamon-brown, ruptured epidermis noticeable; urediniospores 
globoid or broadly ellipsoid, 20-24 by 22-26 4; wall cinnamon-brown, 1.5-2 », closely and 
minutely echinulate, the pores 2, opposite and equatorial. 
III. Telia amphigenous and caulicolous, scattered over wide areas, round, 0.2-0.5 mm. 
across or somewhat elongate, early naked, somewhat pulverulent, dark chestnut-brown, 
ruptured epidermis noticeable; teliospores broadly ellipsoid, 24-28 by 32-40 u, rounded at 
each end, not constricted at septum; wall chestnut-brown, uniformly 1.5-3 yu thick, minutely 
and closely verrucose, the apical pore usually depressed about one third toward septum, 
the pore of lower cell about midway between septum and pedicel; pedicel colorless, deciduous. 
On CARDUACEAE: . 
Centaurea Cyanus I,., Delaware, Massachusetts, New Jersey, New York, Oregon, Penn- 
sylvania. 
Type Locality: Switzerland, on Centaurea Cyanus. . 
DISTRIBUTION: Delaware to central Pennsylvania and in Oregon; also in Europe. 
ILLUSTRATIONS: Corda, Ic. Fung. 4: pl. 5, f. 65; Ber. Deuts. Bot. Ges. 11: pl. 21, f. 20-22; 
Zeits. Pflanzenkr. 9: 293, f. 18. 
Exsiceati: Barth. Fungi Columb. 3353. 
