Part 3, 1912] ABCIDIACEAE 263 



broadly ellipsoid or obovoid, 15-23 by 20-26 m; wall golden-brown, 1.5-2 m thick, finely and 

 rather sparsely echinulate, the pores 2 or 3, approximately equatorial. 



III. Telia amphigenous, scattered, roundish or oval, 0.5-1 mm. or more across, rather 

 early naked, somewhat pulverulent, slightly pulvinate, chocolate-brown, ruptured epidermis 

 conspicuous ; teliospores obovate or oblong, 15-23 by 22-35 m, roundish, obtuse, or less often 

 acute above, usually narrowed below; wall light to dark cinnamon-brown, moderately 

 thick, 2-2.5 M, much thicker at the apex, 5-10 m, smooth; pedicel somewhat tinted next to 

 the spore, fragile, about one and a half times length of spore, usually broken away and 

 appearing short. 



On Onagraceae : 



Gaura biennis I^., Indiana, New York, Ohio. 



Gaura coccinea Pursh, Colorado, Montana, South Dakota, Texas. 



Gaura glabra I,ehm., Colorado, Montana. 



Gaura marginaia Lehm., Colorado, Kansas, Montana, Nebraska. 



Gaura parvijiora Dougl., Kansas, Nebraska. 



Gaura sinuata Nutt., Texas. 



^Gaura villosa Torr., Kansas. 



Kneiffia linifolia (Nutt.) Spach {Oenothera linifolia Nutt.), Illinois, Missouri, Texas. 



Lavauxia brachycarpa (A. Gray) Britton {Oenothera brachycarpa A. Gray), Nebraska. 



Megapterium Fremontii (S. Wats.) Britton {Oenothera Fremontii S. Wats.), Kansas. 



Oenothera laciniata Hill (O. sinuata Iv.), Alabama, Delaware, .Mississippi, Nebraska, 

 North Carolina, South Carolina. 



Onagra biennis (Iv.) Scop. {Oenothera biennis L/.), Illinois, Indiana, Iowa, Maine, Massa- 

 chusetts, Nebraska, New Hampshire, New Jersey, Ohio, Pennsylvania, Rhode Island, 

 South Dakota, Virginia, West Virginia, Wisconsin. 



Pachylophus caespitosus (Nutt.) Raim. {Oenothera caespitosa Nutt.), Colorado, Nevada, 

 Utah, Wyoming. 



Pachylophus hirsutus Rydb., Wyoming. 



Pachylophus macroglottis Rydb., Idaho. 



Pachylophus ntarginatus (Nutt.) Rydb. {Oenothera idahoensis Mulf.), Idaho, Oregon, 

 Utah. 



Pachylophus montanus (Nutt.) A. Nels. {Oenothera ntontana Nutt.), Oregon, Wyoming. 

 Type locality : Colorado, on Oenothera caespitosa. 

 Distribution : Maine to South Carolina and eastern Mississippi, and westward to central 



Oregon and Nevada. 



KxsicCATi : Ellis, N. Am. Fungi 226; Ellis & Ev. N. Am. Fungi 1858, 1866, 2894; Ellis & Ev. 

 Fungi Columb. 1388, 1793, 1994,2184; Barth. Fungi Columb.259^; Clements, Crypt. Form. Colo. 

 533; Garrett, Fungi Utah. 117, 150, 200; D. GrifF. W. Am. Fungi 40; Seym. & Earle, Econ. Fungi 

 B29, 281a, b; Sydow, Ured. 1802. 



73. Nigredo Limonii (DC.) Arth. R&ult. Sci. Congr. 



Bot. Vienne 344. 1906. 



Puccinia Limonii DC. Fl. Fr. 2 : 595. 1805. 



Uredo Statices Desmaz. PI. Crypt. 128. 1826. 



Aecidium Statices Desmaz. PI. Crypt. 132. 1826. 



Caeoma Statices Rudolphi, I^innaea 4 ; 510. 1829. 



Uredo Limonii Duby, Bot. Gall. 2 : 897. 1830. 



Aecidium Limonii Duby, Bot. Gall. 2 : 904. 1830. 



Uromyces Statices Berk. & Curt. Proc. Am. Acad, 4 : 126. 1858. 



Uromyces Limonii L^v.; Cooke, Micr. Fungi 211. 1865. 



Caeomurus Limonii Kuntze, Rev. Gen. 3^ : 450. 1898. 



0. Pycnia amphigenous, loosely grouped, or between the aecia, inconspicuous, honey- 

 yellow, globoid, 120-160 M in diameter; ostiolar filaments 50-65 m long. 



1. Aecia amphigenous, usually in orbicular groups, 3-8 mm. across, somewhat crowded, 

 cylindrical ; peridium white, erect, erose or irregularly torn ; peridial cells rhomboidal, 

 28-35 M long, the walls transversely striate, the outer rather thick, 5-6 /x, the inner thinner, 

 3-4 M, moderately verrucose ; aeciospores irregularly globoid, 18-23 by 20-28 m ; wall pale- 

 yellow, thin, 1-1.5 M, very minutely and closely verrucose. 



II. Uredinia amphigenous, scattered, roundish, 0.5-1 mm. across, tardily naked, 

 cinnamon-brown, pulverulent; urediniospores ellipsoid or nearly globoid, 23-27 by 27-34 /x ; 

 wall cinnamon -brown, thick, 1.5-2.5/1, very closely and conspicuously verrucose with smal 

 papillae, the pores 2 or 3, equatorial. 



III. Telia amphigenous, scattered, roundish, large, 1-2 mm. across, rather tardily 

 naked chocolate-brown, firm, ruptured epidermis evident and somewhat overarching; 

 teliospores obovate or ellipsoid, 19-24 by 27-35 m, obtuse or rounded above, narrowed below; 

 wall chestnut-brown, smooth, rather thick, 1.5-2.5 m, thicker at apex, 5-10 /x", pedicel some- 

 what colored, once to twice length of spore, persistent. 



