152 NORTH AMERICAN FLORA [VoLUME 7 
ON AMYGDALACEAE : 
Amygdalus Persica L., Alabama, California, Florida, Mississippi, South Carolina, Texas ; 
Guatemala; Porto Rico. 
Armeniaca vulgaris Lam., Texas, 
Padus serotina (Ehth.) Ag. (Prunus serotina Ehrh.), Illinois, lowa, Maryland, Massa- 
chusetts, South Carolina, Texas; Hidalgo, Mexico (state) , Veracruz. 
Padus virginiana (I,.) Roem. (Prunus virginiana L,.), Illinois, Wisconsin. 
Prunus americana Marsh., Illinois, Kansas, Wisconsin. 
Prunus americana lanata Sudw., lowa, Texas. 
Prunus Besseyi Bailey, Kansas, Nebraska. 
Prunus domestica I,., South Carolina, Texas. 
Prunus hortulana Bailey, Kansas, Nebraska, Texas. 
Prunus umbellaia Ell., Florida. 
Prunus Watsoni Sarg., Kansas. 
TYPE LOCALITY : Europe, on Anemone ranunculoides. 
DISTRIBUTION : Throughout the United States and eastern Canada, southward into West Indies 
and Central America, more abundant southward; also in South America, Europe, southern 
Africa and Australia, 
ILLUSTRATION : Beitr. Krypt. Schweiz 2?: f. 121, 122, 340. 
EXSICCATI: Ellis, N. Am. Fungi 262, 1004, 1047, 1048 ; Elis & Ev. N. Am. Fungi 1528; Ellis & 
Ev. Fungi Columb. 49, 496, 194, 269, 1504, 1580, 1655, 1864 ; Sydow, Ured. 300, 1026, 1078, 1179, 1180, 
1530 ; Rab.-Wint. Fungi Eur. 302?a, 3422; Roum. Fungi Gall. Exs. 3927; Rav. Fungi Car. Exs. 
5: 99; Carleton, Ured. Amer. 30; Griff. West Am. Fungi 389. 
10. POLYTHELIS Arth. Résult. Sci. Congr. Bot. Vienne 341. 1906. 
Cycle of development includes pycnia and telia. Pycnia subcuticular, telia subepi- 
dermal. 
Pycnia depressed conical or hemisperical ; hymenium flat. 
Telia erumpent, definite, pulverulent, without peridium. Teliospores forming heads or 
balls by being attached by short, fragile pedicels to a common stalk, which is short and in- 
conspicuous, two-celled by transverse septum, cells rounded and easily falling apart ; wall 
colored, closely verrucose. 
Type species, Puccinia Anemones Pers. (on Anemone nemorosa). 
Cells of teliospore not easily separating. 1. P. retecta, 
Cells of teliospore easily falling apart. 
Both cells of spore globoid. 2. P. fusca, 
Lower cell of spore elongate. 
Lower cell longer (20-30). 3. P. Pulsatillae. 
Lower cell shorter (18-26). 4. P. Thaliciri, 
1. Polythelis retecta (Sydow) Arth. Résult. Sci. Congr. Bot. 
Vienne 341. 1906. 
Puccinia retecia Sydow, Ann. Myc. 1: 34. 1903. 
O. Pycnia unknown. 
III. Telia amphigenous, minute but coalescing into areas up to 4 mm. across, soon 
naked, pulverulent, cinnamon-brown, ruptured epidermis evident; teliospores ellipsoid- 
obovate, rounded at both ends, or obtuse below, slightly constricted at septum, 21-27 by 
32-404; wall evenly thick, about 2, brown, densely but finely verrucose; pedicel hyaline, 
as long as the spore, caducous and appearing short. 
ON RANUNCULACEAE : 
Anemone zephyra A. Nels., Colorado. 
TYPE LOCALITY: Buffalo Pass, Park Range, Colorado, on Anemone narcissiflora, now con- 
sidered to be A. zephyra. 
DISTRIBUTION : Colorado. 
ILLUSTRATION : Holway, N. Am. Ured. 1: pl. 3, f. 12. 
Exsiccatr: Griff. West Am. Fungi 328. 
2. Polythelis fusca (Pers.) Arth. Résult. Sci. Congr. Bot. 
Vienne 341. 1906. 
Aecidium fuscum Pers. in Gmel. Syst. Nat. 2: 1473, 1791. 
Puccinia Anemones Pers. Obs. 2: 24. 1799. 
Dicacoma fuscum Kuntze, Rev. Gen. Pl. 3: 466. 1898. 
O. Pycnia amphigenous, sometimes wholly on one side of leaf or the other, few, widely 
scattered, papillose, dark-brown becoming black, subcuticular, depressed-hemispherical, 
110-120" broad, about 80 high. 
