TWENTY-FIB ST ANNUAL MEETING. 83 



1542, (Coll. F. A. Waugh,) on leaves, June l-t, 1887, McPherson county; 1617, with 

 mature oospores, on leaves and stems, June 10, 1889, Manhattan; 910, June, 1887, 

 Manhattan; (Exs.N. A. F., No. 2203, June, 1887, Manhattan) ; E. Bartholomew No. 333, 

 on leaves, June 17, 1889, Rooks county; 1653, June 29, 1889, Manhattan; 1771, on 

 leaves, August 14, 1889, Manhattan; 1774, on leaves, August 28, 1889, Manhattan {Cer- 

 cospora Salviae Kell. & Sw., often occurs on same leaves). 



I have compared this species with a specimen of Peronosjwra Lamii (Al. Br.) De 

 By., on Lamium purpureum from Kreiger, Fungi Saxonici No. 195, sent to me by 

 Mr. J. B. Ellis. The conidia in this specimen were very like those of P. Swinglei, 

 but were not quite so dark colored. The conidiophores were more slender and more 

 flexuose above; the ultimate branches were somewhat longer and narrower. The 

 oospores were very scarce, but the few seen were much like those of P. Sivinglei, ex- 

 cept in size, being much smaller (about 25-33,w). 



The oospores of P. Swinylei are globose or slightly oval, at first hyaline, but when 

 mature dusky brown, variable in size, 29-45// diam., mostly 33-39// diam., wall rather 

 thin, 2-4//, irregularly roughened, often with several low ridges, contents irregularly 

 granular; oogonia somewhat larger that the oospore, thin-walled, hyaline, collaps- 

 ing, about 40-55// diam. 



It may very possibly be that P. Swinglei is only a synonym of P. Lamii, but until 

 I have examined more specimens I cannot decide. 



29. Peronospora Effusa (Grev.) Rabenh. Klotz Herb. Viv. Mf c, No. 1880. Botkytis. 

 EPiPHYLLA (?) Pers. Myc. Eur., p. 36 (1822); Spoeoteichum fabinosum (?) Link, 

 Spec. Pt. I, p. 6 (1824); Boteytis effusa Greville, Flora Edinensis, p. 468 (1824); 

 BoTEYTis FAEiNOSA Fries, Syst. Myc, vol. Ill, p. 404 (1829); Pebonospoea faei- 

 NOSA Fries, Sum. Veg. Scand., p. 493 (1849); Monospoeium Chenopodii Schlect.. 

 Bot. Zeit. 1852, p. 619; Pebonospoea Chenopodii Casp. Bot. Zeit. 1854, p. 565.. 

 [Bull. Bussey Inst., vol. I, p. 426; Bot. Gaz., vol. VIII, p. 327; Syll., vol. VII, p. 256., 

 No. 854.] 



On leaves of Chenopodiaceae May and June. 



On Chenopodium album L., var. viride. 



762, May 23, 1885, Manhattan; 895, May 28, 1887, Manhattan; E. Bartholomew 

 No. 299, May 30, 1889, Rooks county; 1588, June 9, 1889, Manhattan; M. A. Carleton 

 No. 52, June 16, 1887, Cloud county. 



Mr. Bartholomew states that although it is more common on the variety riride of 

 Chenopodium album, he has also seen it on the species, but did not collect any speci- 

 mens. 



Fries gives Botrytis epijjhi/Ua Pers. as a synonym of his B. farinosa, in Syst. Myc, 

 vol. Ill, both on page 404 and in the index, on the strength of specimens, though, as 

 he states, Persoon's description is faulty. Streinz, in Nomenclator Fungorum, p. 161, 

 also gives Botrytis epiphylla Pers. as a synonym of B. farinosa, and does not indicate 

 any doubt. Saccardo, in Syll., vol. IV, p. 118, says, after the description of Botrytis 

 epiphylla Pers,: "An Peronospora effusa (Grev.) De Bary ?" There can be no doubt 

 that Botrytis farinosa Fr. is the same as Botrytis effusa Grev., but if Persoon's name 

 is used, it has priority of Greville's name by two years. The only fault in Persoon's 

 description is that he says, "stipite simplice brevissimo,'' which could not be true 

 unless he had stunted or broken specimens, which might have been the case. 



30. Peronospora Rumicis Corda, Icones Fung. I, p. 20, t. 5, fig. 273. Pebonospoea 

 EFFUSA (Grev.) Rabenh., var. Polygoni Thiim. Fungi Austriaci Exs. Nos. 942 and 

 836. Pebonospoea Polygoni Thiim., in Verhandlungen der K. K. Zoolog.-Bot. 

 Gesell. in Wien, 1874. [Bot. Gaz., vol. VIII, p. 327; Syll., vol. VII, p. 257, No. 

 854.] 



On leaves of Polygonaceae, July. Rare. 



