48 



NATURAL HISTORY BULLETIN. 



7. Plccinia cuRTiPEs //y::r. (1874. Bull. Torr. Bot. Club. 



5, p. 3. On lieu r herd amerieaiia L.. Madison, Wis., 

 Trelcas^e. 



Orig. Descr. " I. . Puccinia curti,;es, n. sp. tSpots pallid or brownish; 

 sori scattered, more or less confluent, roundish or oblong, sur- 

 rounded by the broken epidermis. Spores light brown, elliptic- 

 apiculate, usually marked with delicate striae; Pedicels short or 

 wanting. Bo h sides of the leaves of Saxifraga. May, June.'' 



Mostly h\-pophyllous; spots pallid or none; sori brown, 

 scattered, more or less confluent; spores elliptical, pale brown, 

 with occasional spores much darker, strongly striated, slightly 

 constricted, apex with a small hvaline papilla, 16-20 by 28- 

 32"; pedicel l^-aline. verv fragile. Plate I., Fig. 7. 



Verv near Puccinia saxifraga' Schlechtd., differing from 

 typical specimens in the more prominent striation of the 

 spores, which are mostly darker and shorter. 



Syn: Puccinia saxifragcE Schlechtd. var. cur ti pes (Howe) 

 Dietel. (1891. Ber. d. deutsch. bot. Ges. p. 40.) 



Exsic. Ellis, N. A. F. 1034. 1465. Rabenhorst-Winter- 

 Pazschke, Fungi Europa.*i, 3817. 



X. Y.. Wis.. Penn.. Cal. 



8. PucciNLV DAVi Clinton ('1S76. Peck. 28th Rep. p. 60 ). 



On Steironcnia ciliatuni Raf. Decorah. la.. Ilolzvay. 



ORUi. Descr. " Puccinia da\i Clinton n. sp. Spots suborbicular, brown, 

 sori prominent, scattered or confluent, brown: spores oblong, cla- 

 vate, slightly constricted, .0015-.0023 in. long; peduncle slightly 

 colored, one-half to wholly as long as the spore. Leaves of 

 Lysimachia ciliata. Buffalo, Clinton. Very closeh' related to P. 

 gerardii, differing chiefly in the darker color of the spots and sori. 

 Dedicated to Mr. D. F. Day.'' 



Spots brown, often concave; sori brown, prominent, scat- 

 tered or clustered, at first covered by the epidermis, then 

 naked; spores oblong, slightly constricted, apex pointed, much 

 thickened, 16-20 by 40-50//; pedicel tinted, rather firm, about 

 the length of the spore. Plate I., Fig. 8. 



The thickened apex is usually missing in the spores which 

 have germinated. O.n the older leaves the affected spots fall 

 out. 



