Flora of New Zealand Series

Description : Flora (1985: 56–57). See also Tibell (1987: 30–31).

Chemistry : TLC−, all reactions negative.

N: South Auckland (Mt Honokawa, Mamaku Plateau), Gisborne (Mt Hikurangi, Lake Waikaremoana), Hawke's Bay (Kaweka Ra.), Taranaki (Whangamomona), Wellington (Kaimanawa Ra. to Tararua Ra.). S: Nelson (Kaihoka Lakes to Lake Rotoiti), Westland (Kelly Ra.) Otago (Makarora, Cameron Flat), Southland (Longwood Ra., Lake Hauroko, Lake Gunn, Eglinton Valley). Mainly on lignum of beech (Nothofagus fusca, N. menziesii), 150–1220 m. Frequently with other taxa of Caliciales (Calicium adspersum ssp. australe, C. trabinellum, C. tricolor, Chaenotheca brunneola, C. chrysocephala, Chaenothecopsis nivea, C. pusilla, C. savonica and Mycocalicium albonigrum). Widely distributed in cool temperate and temperate regions of both Northern (Europe, Scandinavia, Asia, North America) and Southern hemispheres (Central and South America, Australia) (Tibell 1999c; Sparrius et al. 2002a; McCarthy 2003c, 2006; Nimis & Martellos 2003; Tibell & Thor 2003; Hermansson & Pystina 2004; Tibell & Ryan 2004a).

Cosmopolitan

Exsiccati : Tibell (1982: No. 52)

Illustrations : Tibell (1987: 31, fig. 11; 1999c: 82); Wirth (1995b: 203); Dobson (2000: 83, 84; 2005: 92).

Calicium glaucellum is characterised by: the rather short-stalked, black apothecia that frequently have a whitish rim of pruina on the upper part of the lower side of the excipulum; the immersed or rarely episubstratic thallus; and the medium-sized ascospores that have a distinctive ornamentation of irregular cracks and ridge fragments at maturity.