560 NORTH AMERICAN FLORA [VoLUME 7 
88. Micropuccinia distorta (Holway) Arth. & Jackson; Arth. 
Bull. Torrey Club 48: 40. 1921. 
Puccinia distorta Holway, Ann. Mye. 3: 22. 1905. 
Dasyspora distorta Arth. Résult. Sci. Congr. Bot. Vienne 346. 1906. 
O. Pycnia epiphyllous, crowded in small groups about 1 mm. in diameter, inconspicuous, 
golden-brown, globoid or ellipsoid, 90-125 by 100-195 y; ostiolar filaments up to 120 u long, 
agglutinate into a column. 
III. Telia mostly hypophyllous or caulicolous, crowded in irregular groups 1-5 mm. 
across or up to 3 cm. on stems and causing distortion, round or oblong, 0.3-2 mm. across, 
eatly naked, pulverulent, light chocolate-brown, ruptured epidermis evident; teliospores 
broadly ellipsoid or obovoid-ellipsoid, 20-27 by 29-40 u, rounded at both ends or somewhat 
narrowed below, not constricted at septum; wall light chestnut-brown, uniform, 2-3 u thick, 
closely and finely verrucose, the pore of upper cell in upper one-third, of lower cell in lower 
one-third; pedicel colorless, somewhat fragile, wp to 80 » long. 
On LAMIACEAE: 
Hyptis Emoryi Torr. (Mesosphaerum Emoryi Kuntze), Arizona, California. 
Hyptis pectinata Poir. (Mesosphaerum pectinatum Kuntze), Guerrero, Jalisco, Morelos, 
Veracruz. 
TYPE LocaLiry: Iguala, Guerrero, Mexico, on Mesosphaerum pectinatum. 
DISTRIBUTION: Southern California to Southern Mexico. 
Exsiccati: Barth. N. Am. Ured. 433. 
89. Micropuccinia Physostegiae (Peck & Clinton) Arth. & Jackson; 
Arth. Bull. Torrey Club 48: 42. 1921. 
Puccinia Physostegiae Peck & Clinton; Peck, Ann. Rep. N. Y. State Mus. 29: 50. 1878. 
Dicaeoma Physostegiae Kuntze, Rev. Gen. 33: 470. 1898. 
Dasyspora Physostegiae H. S. Jackson, Proc. Ind. Acad. Sci. 1915: 440. 1916, 
O. Pyenia unknown. 
III. Telia hypophyllous, crowded, often covering the entire lower surface of leaf, round, 
0.3-0.8 mm. in diameter, often somewhat tardily naked, bullate, pulverulent, chocolate- 
brown, ruptured epidermis conspicuous; teliospores oblong or ellipsoid, 19-26 by 32-48 yn, 
rounded above and below, not constricted at septum; wall light chestnut-brown, thick, 
2.5-3 y, sometimes thickened up to 5 4 at apex, closely and finely verrucose; pedicel colorless, 
about one half length of spore. 
On LAMIACEAE: 
Dracocephalum Nuitallii Britton (Physostegia parviflora Nutt.), Montana. 
Dracocephalum virginianum L. (Physostegia virginiana Benth.), Indiana, New York. 
TYPE LOCALITY: Strawberry Island, [New York], on Physostegia virginiana, 
DistTRiButTiIoNn: Locally in New York, Indiana, and Montana. 
Exsiccati: Barth. N. Am. Ured. 1465, 1771. 
90. Micropuccinia Schneideri (Schroet.) Arthur & Jackson. 
Puccinia caulincola W. G. Schneid. Jahresb. Schles. Ges. 48: 120. 1870. Not P. caulincola Spreng. 
1828. 
Puccinia Schneideri Schroet.; W. G. Schneid. Herb. Schles. Pilze 448. 1879. 
Q. Pyecnia unknown. 
III. Telia caulicolous, scattered or crowded in small groups from a perennial mycelium, 
oblong or linear, 1-3 mm. long, soon naked, pulverulent, dark cinnamon-brown, ruptured 
epidermis conspicuous; teliospores ellipsoid, 18-21 by 26-31 u, rounded at both ends, slightly 
constricted at septum; wall golden-brown 1.5-2 y» thick, thickened up to 5 wu over pores, 
smooth, the pore of upper cell apical, of lower variable; pedicel colorless, up to twice length 
of spore; mesospores ellipsoid, 18-20 by 21-25 u. 
On LAMIACEAE: 
Thymus Serpyllum L., Greenland. 
Type LocaLity: Silesia, on Thymus Chamaedrys. 
DISTRIBUTION: Southern Greenland; also in Europe. . 
ILLUSTRATIONS: Beitr. Krypt. Schweiz 2?: f. 133; Krypt.-fl. Brand. Pilze 3: f. B43. 
