Candelariella aggregata M.Westb. | MYCO-LICH

Candelariella aggregata M.Westb.


Note: New to Asia. This species grows on mosses and plant debris in alpine heaths and arid steppe habitats. It was described from North America (Westberg 2007b) and has recently also been reported from Europe (see Westberg & Clerc 2012). It has a yellow, granular thallus often covered by numerous apothecia. The spores are narrowly ellipsoid and in the Iranian specimens rather variable in size, c. 14–22 × 4.5–6(–7) μm long. It can be separated from C. aurella which normally grows on calcareous rocks, on the structure of the proper exciple, which has large, thin-walled cells and does not form a distinct
stipe below the hymenium (Westberg 2007b). There is a possibility that earlier reports of C. aurella var. unilocilaris from the region at least partly belongs to C. aggregata. The species has been collected in several places in Iran and we have also seen two specimens from Tajikistan.


Specimens examined: IRAN. eaSt azerbaijan: Jolfa, ca 17 km E of Hadishahr, Daran village, Sohrabi 684 (Hb. Sohrabi, LD); Semnan: N of Semnan, 7 km NE of Shahmirzad, Sohrabi 9281b, Sipman, Søchting & Zare (Herb M.Sohrabi); 40 km ENE of Semnan along road to Damghan, Sohrabi 9319, Sipman, Søchting & Zare (Herb M.Sohrabi); KhoraSSan: between Torbat-e Heydariyeh and Mashhad, around Robat-e Sefid, Maassoumi, Sohrabi & Safavi 2387 (B, TARI); TAJIKISTAN. N slope of Hissar Range, Anzob Pass, Ahti 30325, 30392 (H).