Puccinia alnetorum Gäumann, 1941

on Clematis

gall

aecia yellow, hypophyllous, in circles on galled spots, also on disfigured petioles and stems.

spermogonia, aecia

Ranunculaceae, narrowly monophagous

Clematis vitalba.

To a limited extent also C. graveolens and integrifolia.


on Phragmites

gall

Uredinia pale, up to 0.5 mm long; urediniospores yellowish,covered by warty spines; pores unclear; between the spores clavate, thick-walled paraphyses of 35-60 µm. Telia up to 3 mm long, black. Teliospores 17-26 x 35-60 µm, 2-celled, smooth, fusiform, narrowing into the pedicel, apical cell distally with thickened wall, tapering into a point; pedicel a bit longer than the spore, persistent.

uredinia, telia

Poaceae, monophagous

Phramites australis.

references

Brandenburger (1985a), Buhr (1964b), Gäumann (1959), Klenke & Scholler (2015a), Tomasi (2014a).

23/11/2016

mod 15.vii.2017