Bacidia sipmanii M. Brand, Coppins, van den Boom & Sérus.

Bibl. Lichenol., 99: 90, 2009.
Distribution: N - Lig (Brand & al. 2009).
Description: Thallus crustose, episubstratic, pale green-grey to grey-brown,< 0.3 mm thick, smooth to slightly rugose, continuous to rimose, sometimes delimited by a whitish prothallus. Apothecia lecideine, 0.4-1.3 mm across, with a flat to convex, pale to medium (red-)brown disc and a usually darker, sometimes white-pruinose, often finally excluded proper margin. Proper exciple of radiating, strongly conglutinated, thick-walled hyphae with narrow lumina, the outer cells with brown-pigmented walls, to c. 5 µm wide; epithecium brownish; hymenium colourless, 40-60 µm thick; paraphyses simple or branched in upper parts, rather conglutinated, 1-1.5 µm thick at mid-level, the apical cells slightly swollen, to 2.5 µm wide. Asci 8-spored, clavate, surrounded by a gelatinous I+ blue coat, with a well-developed I+ blue tholus, a I+ darker blue tube and a well-developed ocular chamber, Bacidia-type. Ascospores (1-)3-7-septate, hyaline, bacilliform to acicular, slightly tapering towards one end, 26-40 x 1.5-2.5 μm. Pycnidia immersed, pale orange-brown. Conidia filiform, aseptate, strongly curved, (22-)23-25(-27) μm long. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: thallus without lichen substances; exciple and pycnidial wall wih the rubella-orange pigment.
Note: a Mediterranean-Macaronesian species of siliceous, maritime rocks in the xeric-supralittoral zone, where it usually occurs in crevices and underhangs.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Taxon bound to maritime-coastal situations

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: very rare
Dry mediterranean belt: very rare

pH of the substrata:


Solar irradiation:








Altitudinal distribution:


Predictive model

Paul Cannon CC BY-SA-NC Source:

Manuel Gil
Spain, Canary Islands, Tenerife