418 NORTH AMERICAN FLORA [VoLUME 7 
Galium buxifolinm Greene, California. 
Galium concinnum T. & G., Iinois, Indiana, Iowa, Michigan, Missouri, Wisconsin. 
Galium pilosum Ait. (G. purpureum Walt.), North Carolina. 
Galium tinctorium L., Indiana, Wisconsin. 
Galium trifidum L., Wisconsin. 
Galium triflorum Michx., California, Idaho, Oregon, Utah, Washington. 
Galium uncinulatum DC., Costa Rica. 
Galium sp., Michoacan. 
TYPE Loca.ity: Europe, on Galium paludosum. : 
. DISTRIBUTION: Found over the greater portion of North America, but rare east of the Missis- 
sippi valley; also in South America, Europe, and Asia. 
ItyustTRrations: Beitr. Krypt. Schweiz 2: f. 243-246; Ann. Rep. N. Y. State Mus. 25: pl. 2, 
f. 18; Krypt.-fl. Brand. Pilze 3: f. B153. 
Exsiccati: Barth. Fungi Columb. 2572, 3963; Barth. N. Am. Ured. 166, 862, 962, 1071, 1862, 
2261; Ellis, N. Am. Fungi 10380; Garrett, Fungi Utah. 114; Sydow, Ured. 1310, 1779, 2037. 
228. Dicaeoma troglodytes (Lindr.) H. S. Jackson, 
Proc. Ind. Acad. Sci. 1915: 461. 1916. 
Puccinia troglodytes Lindr. Medd. Stockh. Hogsk. Bot. Inst. 49: 6. 1901. 
O and I. Pycnia and aecia not seen. 
II. Uredinia amphigenous, scattered, round, 0.2-0.5 mm. in diameter, somewhat tardily 
naked, bullate, pulverulent, cinnamon-brown, ruptured epidermis conspicuous; urediniospores 
broadly ellipsoid or globoid, 16-22 by 19-27 y; wall cinnamon-brown, 1.5—2 » thick, moderately 
echinulate, the pores 2 or 3, equatorial. 
Ill. Telia amphigenous, scattered, round, 0.2-0.5 mm. in diameter, somewhat tardily 
naked, compact, pulvinate, chocolate-brown, ruptured epidermis conspicuous; teliospores 
clavate or clavate-oblong, 14-19 by 27-40 uw, rounded above, narrowed below, somewhat con- 
stricted at septum; wall light chestnut-brown, darker above, thin, 1-1.5 4, thickened at the 
apex, 6-12 un, smooth; pedicel colorless, fragile. 
On RUBIACEAE: 
Galium triflorum Michx., Connecticut, Indiana, Iowa, Missouri, New Hampshire, New 
York, North Dakota, Pennsylvania, South Dakota, Washington, West Virginia. 
Type LocaLity: Perryville, [Missouri], on Galium triflorum. 
DistrisuTion: Northern United States, east of the Rocky Mountains. 
Exsiccati: Barth. N. Am. Ured. 1376. 
229. Dicaeoma eximium (Arth. & Holway) Arthur. 
Puccinia eximia Arth. & Holway; Arth. Am. Jour. Bot. 5: 488, 1918. 
O. Pycnia not seen. 
I. Aecia amphigenous, more or less scattered upon rather indefinite yellowish areas, short- 
cylindric, 0.2-0.5 mm. high, 0.2-0.4 mm. in diameter; peridium white, the margin erose, soon 
breaking away; peridial cells rhombic or rhomboidal, 16-23 by 23-40 u, slightly overlapping, 
the outer wall 3-7 » thick, transversely striate, the inner wall 2.5-5 « thick, verrucose; aecio- 
spores irregularly globoid or ellipsoid, 18-21 by 19-24 4; wall colorless, thin, 1-1.5 y, finely and 
closely verrucose. 
II. Uredinia hypophyllous, scattered, oval or oblong, 0.6—-1 mm. long, somewhat tardily 
naked, pulverulent, dark cinnamon-brown, ruptured epidermis conspicuous; urediniospores 
ellipsoid or obovoid, 21-29 by 32-35 4; wall dark cinnamon-brown, moderately thick, 2-3 u, 
moderately and coarsely echinulate, the pores 2 or 3, superequatorial. 
Ill. Telia hypophyllous, scattered or in small groups about 2 mm. across, oval, 0.6-0.8 
mm. long, early naked, compact, dark chestnut-brown, ruptured epidermis evident; telio- 
spores oblong, clavate-oblong or clavate-ellipsoid, 21-27 by 42-58 y, rounded at apex, 
rounded or somewhat narrowed below, somewhat constricted at septum; wall golden- or pale 
chestnut-brown, 1.5-2 4 thick, thickened at apex, 5-12, smooth; pedicel colorless, about 
as long as spore, tapering somewhat toward the base. 
On RUBIACEAE: 
Galium mexicanum H.B.K. (?),“Guatemala. 
TYPE LOCALITY: Quezaltenango, Guatemala, on Galium sp. 
DISTRIBUTION: Known only from the type locality. 
