Carlina acaulis, from González Fragoso (1924a): teliospores

gall

No hostplant alternation. Spermogonia epiphyllous, also on the petioles, orange when mature. Aecia are not formed. Uredinia brown, long covered by the epidermis; initially in circles around the spermogonia, later mainly hypophyllous; urediniospores 20-32 x 23-40 µm; 3 distributed pores. Telia as the uredinia, blackish brown, pulverulent. Teliospores 2-celled, pear-shaped, 16-20 x 25-35 µm; cell wall densely and finely verrucose; pedicel hyaline, short.

host plants

Asteraceae, narrowly monophagous

Carlina acanthifolia, acaulis, biebersteinii subsp. brevibracteata, oligocephala.

synonyms

this species of often considered identical with, or a variety of, P. calcitrapae.

references

Blumer (1946a), Brandenburger (1985a: 657), Buhr (1964b), Gäumann (1959a), Gjaerum (1982a), González Fragoso (1924a), Hafellner (1980a), Klenke & Scholler (2015a), Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a).