MILESIXA 



377 



On Poli/podium vi<I</<tre var. serratwm, Scotland, December, 

 1906 (C. H. Wright in Herb. Kew). On Polypodium vulgare, 

 Dolgelly, May, 1913 (A. D. Cotton). (Fig. 281.) 



The genus Milesia is now dropped, because it was founded on an 

 imperfect state which might belong to any one of several genera. 



2. Milesina Blechni Sydow. 



Uredo Scolopendrii Fckl. ; Plowr. Ured. p. 256 p.p. Sacc. Syll. vii. 



s<;o p.p. 

 Jfi'fiim/wtrella Blechni Syd. Anna.1. Mycol. 1903, p. 537. 

 Milesina Blechni Sydow in Mycoth. Germ. no. 877 (1910). 



Uredospores. Sori hypophyllous, hemispherical, pustular, 

 •i — \ mm. diam., yellowish, loosely scattered on green or brownish 



leaf-segments, enclosed in a thin white peridium, opening at 



Fig. 282. M. Blechni. a, cells of peridium, x 360 ; b, uredospores, x 600 ; 

 c, portion of frond of B. Spicant, showing uredo-sori, nat. size. 



the summit by a round pore which always begins to be formed 

 at a stoma ; spores colourless, oblong, obovate or clavate, faintly 

 or irregularly echinulate, 32 — 45 x 12 — 18/x; epispore H — 2 fj, 

 thick. 



[Teleutospores. Unknown in Britain.] 



On Blechnum Spicant. Very uncommon. July — Septem- 

 ber. (Fig. 282.) 



This fungus closely resembles the Milesina on Poli/podium vulgare, 

 and was included under the name Milesia Polypodii B. and B. White. 

 The markings on the spores of this and the allied species are more often 

 of the nature of mere roughnesses than like the neat and regular echinula- 

 tion of the higher types (Puccinia, etc.). 



