Chrysomyxa pyrolae Rostrup, 1881

on Picea

gall

Spermogonia and aecia on outside of the cone scales. The aecia are pad-like, white or yellow, coalescing to one cm large; spores orange.

spermogonia, aecia

Pinaceae, monophagous

Picea abies, engelmannii, glauca, mariana, obovoata, pungens, rubens.


on Pyrola

Chrysomyxa pyrolae: urediniospores

Pyrola rorundifolia. from González-Fragoso (1925a): urediniospores

gall

uredinia hypophyllous, often occupying the entire leaf, yellow to orange. Urediniospores in chains, 21-28 x 18-21 µm, wall colourless, conspicuously warty. Telia much rarer, hypophyllous, in orange to blood red waxy pads. Teliospores 14-26 x 7-10 µm, in long chains.

uredinia, telia

Ericaceae, narrowly oligophagous

Orthilia secunda; Pyrola asarifolia subsp. americana, chlorantha, elliptica, media, minor, rotundifolia.

synonyms

Chrysomyxa pirolata (Körnicke) Winter, 1884.

references

Blumer (1946a), Brandenburger (1985a: 20), Buhr (1965a), Feau, Vialle, Allaire, Maier & Hamelin (2011a), Gäumann (1959a), González-Fragoso (1925a), Henderson (2000a), Klenke & Scholler (2015a), Nierhaus-Wunderwald (2000a), Poelt & Zwetko (1997a), Preece & Hick (1994a), Redfern & Shirley (2011a), Termorshuizen & Swertz (2011a), Tomasi (2014a), Vanderweyen & Fraiture (2007a), Woods, Stringer, Evans & Chater (2015a).

mod 13.viii.2018