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North American Lichen Herbaria
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Usnea dasopoga (Ach.) Nyl.  
Family: Parmeliaceae
[Parmelia barbata f. dasopoga (Ach.) Zahlbr., moreParmelia barbata var. dasopoga (Ach.) Schaer., Parmelia coralloidea var. dasopoga (Ach.) Eschw., Usnea barbata f. dasopoga (Ach.) Ach., Usnea barbata subsp. dasopoga (Ach.) Fink, Usnea barbata var. dasopoga (Ach.) Ach., Usnea chaetophora Stirton, Usnea dasopoga f. dasopoga (Ach.) Nyl., Usnea dasopoga f. flaccida (Stein) Cretz., Usnea dasopoga f. nidifica (Müll.Arg.) Hue, Usnea dasopoga f. nodulosopisifera Pit. & Harm., Usnea dasopoga f. scabra (Müll.Arg.) Hue, Usnea dasopoga subsp. dasopoga (Ach.) Röhl., Usnea dasopoga subsp. eudasypoga Motyka, Usnea dasopoga subsp. melanorrhiza (Britzelm.) Motyka, Usnea dasopoga var. dasopoga (Ach.) Nyl., Usnea dasopoga var. fibrillosa (Motyka) Keissl., Usnea dasopoga var. laeteviridis Motyka, Usnea dasopoga var. plicata (L.) Cromb. nom. rejic., Usnea dasopoga var. transcaucasica Motyka, Usnea diplotypus Vain., Usnea filipendula Stirt., Usnea filipendula var. transcaucasica (Motyka) N.S. Golubk., Usnea muricata Motyka, Usnea plicata (L.) Weber ex F.H. Wigg. nom. rejic., Usnea plicata var. dasopoga Ach., Usnea sublaxa Vain.]
Usnea dasopoga image
Stephen Sharnoff
  • LIAS
  • Greater Sonoran Desert
  • Resources
Botanische Staatssammlung München
Life habit: lichenized (mutualistic with algal photobionts) thallus: fruticose (fruticous), shrub-like, beard-like thallus: continuous, diffuse, effuse [th] upper surface: green(ish) black | yellow(ish) grey | grey(ish) green [th upper surface]: epruinose [th marginal and upper surface] specific structures: present [th margin] cilia, cilioid structures: absent [th upper surface] isidia, isidioid structures: absent | present [th upper surface] soredia, soralia, soralioid structures: absent | present [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.2 (high) 0.6 [th] morphol substructures (eg areoles, squamules): distantly discontiguous [th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | verrucose, warted [th] morphol substructures (eg lobes, branches): isotomic-dichotomous ascomata: absent secondary metabolites: present secondary metabolites: salazinic acid | usnic acid primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: bark, cork, plant surface – trunks, branches, twigs.
Nash, T.H., Ryan, B.D., Gries, C., Bungartz, F., (eds.) 2007. Lichen Flora of the Greater Sonoran Desert Region. Vol 3.
Thallus: shrubby, 4 to 8 cm long, forming dense erect to subpendant tufts branching: anisotomic-dichotomous basal part: concolorous with the branches distinctly blackened branches: irregular, rarely cylindrical, inconspicuously segmented; lateral branches: not narrowed at point of attachment segments: terete and ±cylindrical, sometimes slightly swollen, often with transverse furrows papillae: usually numerous especially on main branches, usually cylindrical tubercles and fibercles: generally absent fibrils: few and unevenly distributed to numerous and ±fish bone-like soralia: punctiform, smaller than half the diameter of the branch, plane to convex and then efflorescent, sometimes confluent, arising initially on cortex isidiomorphs: generally numerous, in clusters on young and mature soralia Apothecia: not seen cortex: dull, thin to moderately thick (7-10%) medulla: moderately thick, dense axis: moderately thick Spot tests: K+ yellow turning red, C-, KC-, P+ orangish yellow (salazinic acid) or K-, C-, KC-, P-, Secondary metabolites: salazinic acid (major), ±caperatic acid, ±lobaric acid, or none detected. Substrate and ecology: on bark of Pinus spp. and Quercus spp., mainly in mixed deciduous-conifers forests between 1900 and 2600 m World distribution: Europe, western North America, and northern Mexico Sonoran distribution: mountains of SE Arizona, Sonora and Chihuahua. Notes: Soralia of U. diplotypus remain minute, do not enlarge and are characteristic with their numerous tufted isidiomorphs. From U. subfloridana, it is distinguished by its chemistry (e.g. salazinic vs. thamnolic acids as majors), its presence of transversal furrows and its usually anisotomicdichotomous branching.
Usnea dasopoga
Open Interactive Map
Usnea dasopoga image
Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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This project made possible by National Science Foundation Awards: #1115116, #2001500, #2001394
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