Part 2, 1907] UREDINACEAE 119 
? 
Pyrola rotundifolia L., Maine, New Hampshire; Quebec. 
Pyrola secunda 1,., Colorado, Michigan, Minnesota, Nevada, Utah, Wyoming; Alaska; 
Ontario, Prince Edward Island. 
Pyrola uliginosa Torr., California, Connecticut, District of Columbia, Maryland, Massa- 
chusetts, Montana, New Hampshire, New Jersey, New Vork, Utah; Alaska. 
TYPE LOCALITY: Jura, France, on Pyrola secunda. 
DISTRIBUTION : Pennsylvania to Ohio and Nevada, northward, especially in the mountains, to 
Greenland and Alaska ; also in Europe. 
_EXSICCATI: Ellis & Ev. N. Am. Fungi 8/2; Ellis & Ev. Fungi Columb. 18/4; Thiim. Myc. 
Univ. 752; Clements, Crypt. Form. Colo. 149. 
3. Melampsoropsis ledicola (Peck) Arth. Résult. Sci. Congr. Bot. 
Vienne 338. 1906. 
Uredo ledicola Peck, Ann. Rep. N. Y. State Mus. 25: 90. 1873. 
Puccinia Legi B. & C. Grevillea 3: 54. 1874. 
Chrysomyxa ledicola Lagerh. Troms Mus. Aarsh. 16: 119. 1893. 
Dicacoma Ledi Kuntze, Rev. Gen. 3: 469. 1898. 
O and I. Pycnia and aecia unknown. 
Ii. Uredinia epiphyllous, somewhat circinate on reddish-brown spots, roundish or 
oblong-polygonal, 0.25-0.5 mm. across, early dehiscing, ruptured epidermis prominent; 
peridium delicate, about 154 thick, wall thin, 14, colorless, smooth ; urediniospores broadly 
elliptical or globoid, 18-29 by 26-36; wall thick, 2.5-3 u, colorless, verrucose with closely 
set, elongate and deciduous tubercles; contents orange-red. 
III. Telia epiphyllous, scattered or grouped, flat, small, at first blood-red ; teliospores 
oblong or cuboid, 10-14 by 13-184, in a series 65-80 long; wall colorless, thin, 1, 
smooth ; contents orange-red when fresh. 
ON ERICACEAE : 
Ledum groenlandicum Oeder (L. latifoluum Ait.), Maine, New Hampshire, New York, 
Washington ; Alaska; Greenland; Alberta, British Columbia. 
Ledum palustre I,., Alaska ; Labrador. 
TYPE LOCALITY: Summit of Mt. Marcy, New York, on Ledum latifolium, 
DISTRIBUTION: Boreal regions, southward in the mountains to Washington, New York, and 
New Hampshire. 
ExsiccaTi: Ellis & Ev. N. Am. Fungi 188? ; Rab.-Wint. Fungi Eur. 7632. 
4. Melampsoropsis Cassandrae (Peck & Clinton) Arth. Résult. Sci. Congr. 
Bot. Vienne 338. 1906. 
Uredo Cassandrae Peck & Clinton; Peck, Ann. Rep. N. VY. State Mus. 30: 54. 1879. 
Caeoma Cassandrae Gobi, Scripta Bot. Hort. Univ. Petrop. 1: 177. 1886. 
Caecoma Cassandrae Rostr. Medd. Bot. For. Kjgb. 2: 90. 1888. 
Chrysomyxa Cassandrae Tranz. Trudi S. Peterb. Obshch. Est. Otd. Bot. 23: 28. 1893. 
O and I. Pycnia and aecia unknown. 
Il. Uredinia hypophyllous, in smail groups, somewhat angular, flat, 0.25-0.5 mm. across, 
ruptured epidermis evident; peridium inconspicuous, delicate; urediniospores catenulate, 
broadly elliptical, irregular, 15-18 by 19-32 4; wall colorless, thin, 1-2, closely verrucose 
with somewhat deciduous tubercles; contents orange. 
III. Telia hypophyllous, very small, 130-160 across, pale-orange, very inconspicuous ; 
teliospores oblong, 11~16 # broad, in a series 60-70 long; wall uniformly thin, colorless, 
smooth ; basidiospores globoid, colorless, about 4.54 in diameter. 
ON ERICACEAE: ; , 
Chamaedaphne calyculata (1,.) Moench (Cassandra calyculata D. Don), Maine, Michigan, 
New York, Wisconsin. 
Pieris mariana (\,.) Benth & Hook. (Andromeda mariana I,.), Delaware. 
Pieris nitida (Bartr.) Benth & Hook. (Andromeda nitida Bartr.), Georgia. 
Xolisma ligustrina (1,.) Britton (Andromeda ligustrina Muhl.), Alabama. 
TYPE LOCALITY: Center, New York, on Cassandra calyculata. . 
DISTRIBUTION : Maine to Wisconsin, south to Georgia and Alabama; also in northern Europe, 
EXSICCATI: Ellis & Ev. N. Am. Fungi 2717, 3053; Seym. & Earle, Econ. Fungi 486; Ellis & 
Ev. Fungi Columb. 356 ; Rav. Fungi Am. 731. 
5. Melampsoropsis abietina (Alb. & Schw.) Arthur. 
Aecidium abietinum Alb. & Schw. Consp. Fung. 120. 1805. 
Uredo Ledi Alb. & Schw. Consp. Fung. 125. 1805. 
Caeoma Ledi Link, in Willd. Sp. Pl. 62: 15. 1825. 
Caeoma piceatum Link, in Willd. Sp. Pl. 6?: 62. “1825. 
