270 PUCCINIA 



("rnlnsjxtirs. Sori amphigenouSj on indefinite yellowish 

 spots, scattered or in groups, elliptical or linear, soon naked, 

 minute, rusty \ ellow; spores ellipsoid to ovate, delicately echinu- 

 late, yellowish, 20—30x15—20/4 (with 2—4 very distinct 

 equatorial germ-pores on one face, McAlpine). 



Teleutospores. Sori very inconspicuous, amphigenous, scat- 

 tered, minute, soon naked, elliptical or linear, blackish-brown; 

 spores elliptical or subpyriform or oblong, usually rounded 

 above and thickened (up to 8 ji), gently constricted, rounded 

 or rarely attenuated below, smooth, chestnut-brown, 28 — 48 x 

 16 — 22/la: pedicels persistent, brownish, up to 45//, long. 



On leaves (living or fading) of Anthoxanihum odoratum. 



Very rare; King's Lynn, 1884. 



The description is from Sydow, where it is stated that the uredo is 

 frequent in mid-Germany, but the teleutospores are exceedingly rare. 

 Plowright mentions that, mixed with the uredospores, he found a large 

 number of hyaline capitate paraphyses ; but Fischer states that the 

 specimen in Sydows' Uredineen (no. 458) has no paraphyses and none are 

 mentioned in the description. In a doubtful specimen on Anthoxanthum 

 from Switzerland, however, Fischer found paraphyses. McAlpine also 

 found no paraphyses, but occasional mesospores, and states that the teleu- 

 tospores are much more uncommon than the uredospores. He found his 

 specimens on sheath and inflorescence of A. odoratum, as well as on the 

 leaves. The only British specimens I have seen are those collected at 

 King's Lynn by Plowright in 1884, but it is also recorded for Yorkshire. 

 The suggestion that this is a heteroecious species has so far received no 

 confirmation. 



Distribution : Belgium, Germany, Australia. 



125. Puccinia perplexans Plowr. 



P. perplexans Plowr. Quart. Journ. Micr. Sci. xxv. 164; Ured. p. 179; 

 Hedw. 1886, p. 38 ; Grevillea, xiii. 53. Sacc. Syll. vii. 632. 

 Sydow, Monogr. i. 719. McAlpine, Rusts of Australia, p. \-~. 

 f. 23. 



jEcidiospores. /Ecidia hypophyllous and on the petioles, 

 clustered on roundish yellow spots, somewhat cylindrical, with 

 a white incised margin : spores faintly verruculose, orange, 

 18 — 27 /i. diam. 



