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Caloplaca crenularia (With.) J.R. Laundon
Family: Teloschistaceae
[Blastenia festiva (Ach.) A. Massal.,  more]
Caloplaca crenularia image
Life habit: lichenized (mutualistic with algal photobionts) thallus: crustose (crustaceous) – episubstratal – unspecified thallus: continuous, diffuse, effuse | cracked, fissured, fractured, rimose [th] upper surface: grey(ish) [th marginal and upper surface] specific structures: absent ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (median) 1.0 [ascm, if apoth] disc, mazaedium: red(dish) | red(dish) brown (if pale: orange brown) asci: lecanoralean [asc] tholus: thickened [asc] tholus amyloidity (iodine reaction): present [asc] tholus amyloidity pattern: entirely amyloid (= Catillaria-, Teloschistes-types etc) ascospores: (median) 8.0 [asp] length [µm]: (low) 12.0 (high) 17.0 (max) 21.0 [asp] width [µm]: (low) 6.0 (high) 8.0 (max) 10.0 [asp] septa: absent | present – spore lumen bilocular, polarilocular, plurilocular [asp] pigmentation: hyaline, colourless [asp] perispore, epispore: not apparent secondary metabolites: present secondary metabolites: parietin primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: rock – calcareous, calciferous, basic.