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- building a Global Consortium of Bryophytes and Lichens as keystones of cryptobiotic communities -
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Melanohalea septentrionalis (Lynge) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch  
Family: Parmeliaceae
[Melanelia septentrionalis (Lynge) Essl., moreParmelia olivacea var. septentrionalis Lynge, Parmelia septentrionalis (Lynge) Ahti]
Melanohalea septentrionalis image
Troy McMullin
  • LIAS
  • Resources
Botanische Staatssammlung München
Life habit: lichenized (mutualistic with algal photobionts) thallus: foliose (foliaceous), leaf-like thallus: continuous, diffuse, effuse [th] upper surface: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) green (olivaceous, olive green) | green(ish) brown (olive brown) [th upper surface]: epruinose | pruinose [th upper surface] pruina: scarce, sparse, fine [th marginal and upper surface] specific structures: absent [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (min) 0.5 (low) 1.0 (high) 3.0 (max) 4.0 [th] morphol substructures (eg areoles, squamules): distantly discontiguous [th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | pseudocyphellate, with pseudocyphellae [th] morphol substructures (eg lobes, branches): subdichotomous | irregular [th] lower surface: black(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) [th lower surface] specific structures: present [th lower surface] rhizines, rhizoid structures: present [th lower surface] rhizines, rhizinoid structures: unbranched, simple ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (median) 3.0 (max) 5.0 ascoma: sessile, superficial [ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) [ascm, if apoth] disc, mazaedium: epruinose [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) brown (if pale: orange brown) [ascm, if apoth] margin excipular photobionts: present [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless [ascm] paraphyses/-oids: present asci: lecanoralean [asc] tholus: thickened [asc] tholus amyloidity (iodine reaction): present [asc] tholus amyloidity pattern: amyloid with widening axial body towards the apex (= Lecanora-, Parmelia-, Rinodina-types etc) ascospores: (median) 8.0 [asp] shape: ellipsoidal [asp] length [µm]: (low) 9.0 (high) 15.0 [asp] width [µm]: (low) 5.0 (high) 8.5 [asp] septa: absent – spore lumen unilocular, monolocular [asp] pigmentation: hyaline, colourless [asp] perispore, epispore: not apparent conidiomata: absent | present conidia: bifusiform | acerose (needle-shaped) [co] length [µm]: (low) 5.0 (high) 6.5 secondary metabolites: absent | present secondary metabolites: fumarprotocetraric acid | protocetraric acid primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: bark, cork, plant surface – trunks, branches, twigs.
Melanohalea septentrionalis
Open Interactive Map
Melanohalea septentrionalis image
Stephen Sharnoff
Melanohalea septentrionalis image
Stephen Sharnoff
Melanohalea septentrionalis image
Lucy Taylor
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This project made possible by National Science Foundation Awards: #1115116, #2001500, #2001394
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