Part 2, 1907] AECIDIACEAE 151 
paler below, thin, 1-22, much thickened above, 5-9», sparsely and sharply echinulate, less 
so above, pores 3 or 4, equatorial. 
III. Telia hypophyllous, scattered, or in circinating or somewhat confluent groups, 
round, 0.5-1 mm. across, early naked, pulverulent, chocolate-brown, ruptured epidermis 
usually noticeable; teliospores oblong, 18-22 by 30-45 #, rounded at both ends, or somewhat 
narrowed below, greatly constricted and easily falling apart at the septum; wall dark 
chestnut-brown, thin, 1.5-2, not thickened above, closely and coarsely verrucose ; pedicel 
colorless, short, or rarely nearly as long as the spore, fragile. 
ON RANUNCULACEAE : 
Anemone decapetala Ard., Texas. 
TYPE LOCALITY: Austin, Texas, on ‘* Anemone caroliniana,’’ ertor for A. decapetala, 
DISTRIBUTION : Central Texas. 
ILLUSTRATIONS: Long, J. c., f. 2; Holway, N. Am. Ured. 1: pL.2,f.7. 
| Exsiccatr: Ellis & Ev. Fungi Columb. 7643. 
2. Tranzschelia punctata (Pers.) Arth. Résult. Sci. Congr. Bot. 
Vienne 340. 1906. 
Aecidium punctatum Pers. Ann. Bot. Usteri 20: 135. 1796. 
Puccinia Pruni-spinosae Pers. Syn. Fung. 226. 1801. 
Puccinia Pruni DC. Fl. Fr. 2: 222. 1805. 
Accidium quadrifidum DC. in Poir. Encycl. Meth. Bot. 8: 235.’ 1808. 
Puccinia Prunorum Link, in Willd. Sp. Pl. 62: 82. 1825. 
Uredo fusiformis Gachet, Act. Soc. Linn. Bordeaux 5 : 232. 1832. 
Aecidium hepaticatum Schw. Trans. Am. Phil. Soc. II. 4: 293. 1832. 
Uredo Pruni Cast. Obs. 1: 27. 1842. 
Uromyces Prunorum Fuckel, Jahrb. Ver. Nat. Nass. 15: 20. 1861. 
Dicaeoma Prunorum Rabh. Fungi Eur. 990. 1866. 
Puccinia discolor Fuckel, Symb. Myc. 50. 1869. 
Dicacoma Prunt-spinosae Kuntze, Rev. Gen. Pl. 3: 470. 1898. 
Aecidium dakotensis Griff. Bull. Torrey Club 29: 300. 1902. 
Aeccidium Aikeni Sydow, Ann. Myc. 1: 334. 1903. 
O. Pycnia amphigenous, or sométimes only epiphyllous or hypophyllous, evenly and 
remotely scattered over large areas, preceding or accompanying the aecia, conspicuous, 
hemispherical or conoidal, honey-yellow becoming chocolate-brown, subcuticular, 100-160 z 
broad, and half as high. 
I, Aecia hypophyllous, uniformly scattered over large areas; peridium cylindrical, 
ample, 0.5 mm. across, dehiscent into few (often 4) widely spreading or recurved lobes; 
aeciospores globoid or oblong-globoid, 15-23 by 18-26; wall cinnamon-brown, medium 
thick, 1.5-2.5 4, closely and minutely verrucose. 
ON RANUNCULACEBE : 
Anemone caroliniana Walt., Kansas, Louisiana. 
Anemone quinguefolia L. (A. nemorosa Michx.), Alabama, Illinois, Iowa, Massachusetts, 
New York, Vermont, Wisconsin; Ontario. . 
fTepatica acuta (Pursh) Britton (A. acutiloba DC.), Illinois, Indiana, Iowa, New York, 
Pennsylvania, West Virginia, Wisconsin. . 
Hepatica Hepatica (1,.) Karst. (7. triloba Chaix.), Delaware, New York, Pennsylvania. 
Thalictrum dioicum 1,., lowa, Pennsylvania. . 
Thalictrum purpurascens 1,., Iowa, Kansas, Nebraska, Ohio, South Dakota. 
II. Uredinia hypophyllous, scattered, round, small, 0.5 mm. across, early naked, 
pulverulent, cinnamon-brown, ruptured epidermis usually noticeable ; abundant paraphyses 
intermixed with the spores, capitate, 12-18 by 45-60 #, slightly colored and somewhat thick- 
ened above, colorless below; urediniospores oblong-clavate or oblong-fusiform, 15-23 by 
28-42 #, narrowed or obtuse above, much narrowed below; wall brownish-yellow above, 
much paler below, thin, 1-1.5, much thickened and smooth above, 5-9 #, sparsely and 
sharply echinulate below, pores 3 or 4, equatorial. 
III. Teliahypophyllous, scattered, round, small, 0.3-0.5 mm. across, early naked, some- 
what pulverulent, dark chestnut-brown, ruptured epidermis usually noticeable ; teliospores 
oblong or obovate-oblong, 18-27 by 30-39 y#, rounded at both ends, or narrowed below, 
greatly constricted and easily falling apart at the septum; wall chestnut-brown, often paler 
below, thin, 1.5-2.5 4, not thickened above, closely and coarsely verrucose ; pedicel color- 
less, fragile, apparently very short. 
