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Porpidia flavocaerulescens (Hornem.) Hertel & A. J. Schwab
Family: Lecideaceae
[Huilia flavocaerulescens (Hornem.) Hertel,  more]
Porpidia flavocaerulescens image
Stephen Sharnoff  
Life habit: lichenized (mutualistic with algal photobionts) thallus: crustose (crustaceous) – episubstratal – unspecified thallus: compartimentized – areolate, squamulate [th] upper surface: red(dish) | yellow(ish) grey | brown(ish) green (olivaceous, olive green) | yellow(ish) red (orange red) [th marginal and upper surface] specific structures: present [th margin] cilia, cilioid structures: absent [th upper surface] isidia, isidioid structures: absent [th upper surface] soredia, soralia, soralioid structures: present [th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane [th] medulla amyloidity: absent ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (low) 0.2 (high) 2.0 (max) 4.0 ascoma: immersed, innate | sessile, superficial [ascm, if apoth] disc, mazaedium: concave | plane, flat, flattened, expanded | convex [ascm, if apoth] disc, mazaedium: black(ish) [ascm, if apoth] disc, mazaedium: epruinose | pruinose [ascm, if apoth] disc, mazaedium pruina: scarce, sparse, fine [ascm, if apoth] margin excipular photobionts: absent [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | hyaline, colourless | yellow(ish) brown | red(dish) brown (if pale: orange brown) [ascm] paraphyses/-oids: present [ascm] epihymenium, epithecium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | green(ish) brown (olive brown) asci: lecanoralean [asc] tholus: thickened [asc] tholus amyloidity (iodine reaction): present [asc] tholus amyloidity pattern: with amyloid tube, ring (= Collema-, Micarea-, Porpidia-, Psora-types etc) ascospores: (median) 8.0 [asp] shape: ellipsoidal [asp] length [µm]: (low) 9.0 (high) 14.5 (max) 19.5 [asp] width [µm]: (low) 4.0 (high) 7.5 [asp] septa: absent – spore lumen unilocular, monolocular [asp] pigmentation: hyaline, colourless [asp] perispore, epispore: not apparent | thin, thinly halonate | thick, distincly halonate secondary metabolites: present secondary metabolites: 2'-O-methylmicrophyllinic acid | 2'-O-methylperlatolic acid | confluentic acid | cryptostictic acid | norstictic acid | stictic acid primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified.
Porpidia flavocaerulescens image
Troy McMullin  
Porpidia flavocaerulescens image
Stephen Sharnoff  
Porpidia flavocaerulescens image
Stephen Sharnoff  
Porpidia flavocaerulescens image
Samuel Brinker  
Porpidia flavocaerulescens image