354 NORTH AMERICAN FLORA [VoLUME 7 
124. Dicaeoma minutum (Dietel) Arthur & Kern. 
Puccinia minute Dietel; Atk. Bull. Cornell Univ. 3:19. 1897. 
O and I. Pyenia and aecia unknown. 
II. Uredinia hypophyllous, scattered, roundish or oblong, 0.2-0.3 mm. long, rather tardily 
naked, somewhat pulverulent, cinnamon-brown, ruptured epidermis conspicuous; uredinio- 
spores broadly ellipsoid or obovoid, 19-26 by 29-39 y; wall cinnamon-brown, about 1.5-2.5 2 
thick, evenly and rather sparsely echinulate, the pores 3, or sometimes 4, equatorial. 
ITI. Telia hypophylious, scattered, roundish or oblong, 0.2-0.3 mm. long, often appearing 
longer by becoming confluent end to end, rather tardily naked, blackish-brown, ruptured 
epidermis conspicuous; teliospores clavate-oblong or cuneate, small, 16-23 by 32-55 yu, not or 
only slightly constricted at septum, usually rounded above, wall light chestnut-brown, 1-1.5 
thick, much thicker at apex, 5~9 », smooth; pedicel slightly tinted, about one half length of 
spore. 
ON CYPERACEAE: 
Carex verrucosa Muhl., Alabama, Florida. 
TYPE Locality: Auburn, Alabama, on Carex verrucosa. 
DISTRIBUTION: Southeastern Alabama to northeastern Florida. 
125. Dicaeoma Lysimachiae (Schw.) Kuntze, Rev. Gen. 33: 467. 
1898. 
Aecidium Lysimachiae Schw. Schr. Nat. Ges. ae 1:67, 1822. 
Caeoma Lysimachiae Schlecht. Fl. Berol. 2: 113. 1824, 
Caeoma lysimachiatum Link, in Willd. Sp. Pl. 62:45. 1825. 
Aecidium Lysimachiae Wallr. Fi. Crypt. Germ. 2: 252. 1833. 
Puccinia Limosae Magn. Tagebl. Naturf. Vers. Miinchen 50: 199, 1877. 
Puccinia lysimachiata Kern, Mycologia 9: 215. 1917. Not P. Lysimachiae P. Karst. 1879. 
O. Pycnia amphigenous, gregarious in more or less open groups 0.5-1.5 mm. across, notice- 
able, honey-yellow becoming dark-brown, somewhat flattened-globose, 80-105'u in diameter 
by 65-80 » high; ostiolar filaments 40-60 u long. 
I. Aecia chiefly hypophyllous, gregarious, in large groups 3-12 mm. across, on larger 
discolored spots, more or less crowded, cupulate, 0.2-0.3 mm. in diameter; peridium colorless, 
the margin recurved, erose; peridial cells rhomboidal, 20-30 u long, the outer wall 5-8 u thick, 
striate, smooth, the inner wall 2—4 y, finely verrucose; aeciospores globoid, 16-19 by 18-21 y; 
wall pale-yellow, thin, 1 4, very finely verrucose. 
On PRIMULACEAE: 
Lysimachia quadrifolia L,., Connecticut, Massachusetts, New Jersey, New York, North 
iain eae (L.) B.S.P. (ZL. stricta Ait., L. racemosa Michx.), Connecticut, Dela- 
ware, New York, North Carolina, Pennsylvania. 
Naumburgia thyrsi flora (L.) Duby (Lysimachia thyrsiflora I,.), Illinois, Nebraska, New 
York, Wisconsin; Ontario. 
II. Uredinia hypophyllous, scattered or in series parallel to the veins of the leaves, small, 
oblong or linear, soon naked, pulverulent, cinnamon-brown, ruptured epidermis conspicuous; 
urediniospores broadly ellipsoid or obovoid, 17-19 by 20-25 yu; wall cinnamon-brown, 1.5-2 2 
thick, evenly and rather sparsely echinulate, the pores 3 or 4, equatorial. 
III. Telia hypophyllous, distributed like the uredinia, oblong or linear, 0.2-0.6 mm. long, 
soon naked, pulvinate, blackish-brown, ruptured epidermis conspicuous; teliospores oblong or 
oblong-clavate, 15-19 by 32-45 yu, rounded or truncate above, usually narrowed below, slightly 
constricted at septum; wall dark chestnut-brown, somewhat paler below, 1-1.5 uw thick, much 
thicker above, 7-10 4, smooth; pedicel light-yellow or nearly colorless, about three fourths 
length of spore. 
ON CYPERACEAE: 
Carex arcta Boott, Ontario. 
Carex atratiformis Britton (C. atrata ovata Boott), Quebec. 
Carex brunnescens (Pers.) Poir. (C. canescens alpicola Wahl.), Vermont. 
Carex limosa L., Nebraska, Ohio; Ontario. 
Type Locatiry: North Carolina, on Lysimachia quadrifolia, 
DISTRIBUTION: Nova Scotia to Delaware, and westward to Wisconsin and Nebraska; also in 
Europe. 
qe carmrions: Krypt.-fl. Brand. Pilze 3: f. Bi08. 
Exsiccati: Barth. Fungi Columb. 3848, 4152, 4153, 5064; Ellis, N. Am. Fungi 14240; Ellis & 
Ev. N. Am. Fungi 2404, 
