Hypogymnia
Hypogymnia (Nyl.) Nyl., 1896
| Common name | Tube Lichens |
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|---|---|---|---|
| Field Characters | Small to medium-sized, leafy chlorolichens. Thalli appressed throughout or ascending or even pendant. Lobes hollow to rarely solid, rounded. Upper surface blue-grey to brown, dull to slightly shiny to very shiny and appearing varnished. Lower cortex black or brown, lacking rhizines. Species commonly sorediate, apotheciate or isidiate. | ||
| Similar species & genera |
Parmelia: with experience these two genera are easily discriminated – Parmelia has hammered, often angular lobes and abundant rhizines. Because they both have some super common species that often grow overtop each other they often are confused by beginners. | ||
| Ecology | Most species in Alberta are epiphytic or on downed wood, a few are saxicolous. Most common in forested sites, reaching their highest diversity in mountain and foothills forests but some species are found occasionally in the grasslands. | ||
| Chemistry | Upper cortex PD+ pale yellow or PD-, K+ yellow, C-, KC- or rarely KC+ yellow, UV- (atranorin, chloroatranorin, rarely usnic acid and not in Alberta species). Medulla has some combination of orcinol or ß-orcinol depsidones and or depsidones or ß-orcinol depsides. | ||
| Molecular support |
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| Links |
Species or subspecies recorded in Alberta: 17
- H. austerodes sensu lato. Can be used to encompass the austerodes s.s. as well as four species recently split from austerodes:
- H. austerodes sensu stricto (Nyl.) Räsänen – See Goward et al. 2012 for recent split to 5 spp.
- H. dichroma Goward
- H. protea Goward, T. Sprib. & Ahti
- H. salsa Goward
- H. verruculosa Goward
- H. bitteri (Lynge) Ahti Syn.: Parmelia bitteri ACIMS, ABMI
- H. duplicata (Ach.) Rass. ACIMS
- H. enteromorpha (Ach.) Nyl. ACIMS, ABMI
- H. imshaugii Krog ACIMS
- H. inactiva (Krog) Ohlsson ACIMS
- H. occidentalis L. Pike ACIMS
- H. physodes (L.) Nyl. Syns.: Parmelia duplicata var. douglasicola, P. physodes, P. oregana ACIMS, ABMI
- H. rugosa (G. Merr.) L. Pike ACIMS
- H. subobscura (Vainio) Poelt Syn.: Parmelia subobscura ACIMS
- H. tubulosa (Schaerer) Hav. Syn.: Parmelia tubulosa ACIMS, ABMI
- H. vittata (Ach.) Parrique Syn.: Parmelia vittata ACIMS
- H. wilfiana Goward, T. Sprib. & Ahti Western NA (Goward et al. 2010) Prev. misided as H. metaphysodes
Click for doc key to Hypogymnia in Alberta_v2025
RENR Students: Know H. physodes, H. tubulosa, and H. austerodes sensu latu– be able to key these species out or recognize them (also covered in Brodo et al. 2001 and Goward 1999).
Resources
Brodo, I. M. 2016. Keys to the lichens of North America. Revised and Expanded. Yale University Press, in collaboration with the Canadian Museum of Nature.
Brodo, I. M., S. D. Sharnoff, and S. Sharnoff. 2001. Lichens of North America. Yale University Press, New Haven and London.
Goward, T., T. Ahti, J. A. Elix & T. Spribille. 2010. Hypogymnia recurva and Hypogymnia wilfiana spp. nov., two new lichens from western North
America. Botany 88: 345-351.
Goward, T., B. McCune & D. Meidinger. 1994. The Lichens of British Columbia Illustrated Keys. Part 1 – Foliose and Squamulose Species. Ministry of Forests Research Program, Province of British Columbia.
Goward, T., T. Spribille, T. Ahti & C. J. Hampton-Miller. 2012. Four new sorediate species in the Hypogymnia austerodes group (lichens) from northwestern North America, with notes on thallus morphology. The Bryologist 115: 84-100.
