MILESINA 377 
On Polypodium vulgare var. serratum, Scotland, December, 
1906 (C. H. Wright in Herb. Kew). On Polypodium vulgure, 
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. 
860 p.p. 
Melampsorella Blechni Syd. Annal. Mycol. 1903, p. 537. 
Milesina Blechni Sydow in Mycoth. Germ. no. 877 (1910). 
Uredospores. Sori hypophyllous, hemispherical, pustular, 
4—3 mm. diam., yellowish, loosely scattered on green or brownish 
leaf-segments, enclosed in a thin white peridium, opening at 
Fig. 282. M. Blechni. «, cells of peridium, x 360; 5, 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 uw; epispore 142 pu 
thick. 
[Teleutatpores. Unknown in Britain.] 
On Blechnum Spicant. Very uncommon. July—Septem- 
ber. (Fig. 282.) 
This fungus closely resembles the Milesinu on Polypodium 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 (Puccinza, etc.). 
