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Ramalina siliquosa (Huds.) A.L. Sm. (redirected from: Ramalina druidarum)
Family: Ramalinaceae
[Evernia scopulorum (Ach.) Link,  more]
Ramalina siliquosa image

Global occurrence: Eurasia – Asia Extratropical | Eurasia – Europe | Eurasia – Asia Tropical | Arctic.  Substrate: rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified.  Life habit: lichenized (mutualistic with algal photobionts).  Thallus: fruticose (fruticous), shrub-like, beard-like; continuous, diffuse, effuse; [th] upper surface: grey(ish) green | yellow(ish) green; [th upper surface]: epruinose; [th marginal and upper surface] specific structures: absent; [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 2.0 (high) 9.0; [th] morphol substructures (eg areoles, squamules): distantly discontiguous; [th] morphol substructures (eg areoles, lobes, branches) upper surface: rugose, plicate, folded, pustulate, faveolate, wrinkled; [th] morphol substructures (eg lobes, branches): isotomic-dichotomous | irregular.  Ascomata: absent | present; ascoma: apothecial, apothecioid – hymenial; ascoma: subpedicellate, substipitate, subpedunculate, substalked | pedicellate, stipitate, pedunculate, stalked; [ascm, if apoth] disc, mazaedium: concave | plane, flat, flattened, expanded; [ascm, if apoth] disc, mazaedium: yellow(ish) (if dull: buff) | white(ish) brown (beige); [ascm, if apoth] disc, mazaedium: epruinose; [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: grey(ish) green | yellow(ish) green; [ascm, if apoth] margin excipular photobionts: present | abundant; [ascm] paraphyses/-oids: present; [ascm] epihymenium, epithecium: brown(ish) yellow (ochraceous, ochre).  Asci: lecanoralean; [asc] tholus: thickened; [asc] tholus amyloidity (iodine reaction): present; [asc] tholus amyloidity pattern: amyloid with acuate axial body towards the apex (= Bacidia-, Buellia-, Ramalina-types etc).  Ascospores: (median) 8.0; [asp] shape: broadly ellipsoidal | fabiform, reniform; [asp] length [µm]: (low) 11.0 (high) 20.0; [asp] width [µm]: (low) 5.0 (high) 6.0; [asp] septa: present, transversely septate; [asp] transversal septa: (median) 1.0; [asp] pigmentation: hyaline, colourless; [asp] perispore, epispore: not apparent.  Conidiomata: absent | present.  Conidia: bacilliform, bacillary.  Secondary metabolites: absent | present, hypoprotocetraric acid | protocetraric acid | salazinic acid | usnic acid.  Primary photobiont: present, chlorophytaceous – trebouxiaceous, chlorococcoid.  Secondary photobionts (eg in cephalodia): absent.