226 



Mycologia 



On Car ex alata, albolutescens, athrostachya, brevior, bromoides, 

 canescens, cephaloidea, cephalophora, Crawfordii, cristatella, 

 Deweyana, diandra, disperma, festivella (formerly det. as f es- 

 tiva), festucacea, foenea, gravida, Hookeriana, Houghtonii, in- 

 terior, Jamesii, laeviculmis, Leavenworthii, Leersia, Muhlenbergii, 

 Muskingumensis , oligocarpa, Pennsylvania, planostachys, prairea, 

 retrorsa, rosea, Rossii, scoparia, sparganioides, sterilis, stipata, 

 suberecta, subfusea, Sivanii, ten era, triangularis, tribuloides, tri- 

 sperma, umbeUata, varia, vlridula, vulpinoidea (also on Dulichium 

 arundinac eiim ) . 



Distribution : Common from Nova Scotia and Virginia west 

 to the Pacific Coast, less common southward to Alabama and 

 Texas, and in Alaska; also in South America and Europe. 



Exsiccati: Barth. N. Am. Ured. 23, 267, 555, 624, 651, 732, 

 733, 775, 827, I0 3 r , I0 3 2 > II 4°, 1180, 1226 — 26, 226, 227, 228, 

 334, 421, 534, 623, 625, 626, 731, 824, 825, 826, 828, 829, 931, 976, 

 1029, 1030, 1 135, 1 136, 1 138, 1 139, 1337, 1442, 4565; Barth. 

 Fungi Columb. 2366, 2574, 3743, 3862, 4274, 4455, 4364, 4755, 

 4766—2302, 2448, 2656, 3250, 3251, 3352, 3454, 3455, 3547, 3548, 

 3744, 3839, 3932, 4053, 4054, 4142, 4257, 4258; Brenckle, Fungi 

 Dakot. 241, 364, 364a — 107, 341, 341a; Carleton, Ured. Am. 45; 

 Clements, Crypt. Form. Colorad. 692 ; Ellis ,& Ev. Fungi Columb. 

 1667, 1847, 4143—64, 1391, 1502, 1705, 1707, 1708, 1955; Ellis, 

 N. Am. Fungi 1019; Ellis & Ev. N. Am. Fungi 2402b ; Garrett, 

 Fungi Utah. 66 — 65, 131, 155; GrirT, N. Am. Fungi 277 — 370; 

 Kellerm. Ohio Fungi 89, 174 — 150, 151; Sydow, Ured. 2132, 

 2386, 24.11, 2412 — 2515; Rab.-Wint.-Paz. Fungi eur. 3833. 



In its present form this is a comprehensive species including 

 several forms which heretofore have passed as good species. 

 Using the aecial hosts chiefly as a guide three distinct forms were 

 recognized during the early stages of culture work in this country. 

 These three forms were named Puc. Caricis-Asteris, Puc. Caricis- 

 Solidaginis, and Puc. Caricis-Erigerontis, the names indicating the 

 aecial connections. In view of the close relationship of the aecial 

 hosts, the similarity of structure of the uredinial and telial stages, 

 and certain cross cultures it now seems best to consider these 

 forms as races of a single species. An examination of the long 

 list of synonyms reveals several other items of interest. Puc- 



