Hypogymnia tubulosa (Schaer.) Hav., 1918
| Common name | Dog Bone |
|---|---|
| Code | HYPOTUB |
| Field Characters | Small, leafy chlorolichens. Thalli erect, slightly stiff and cartilaginous. May be short-lobed and compact or long-lobed and leggy. Lobes hollow, rounded, branching sparsely and dichotomously. Upper surface blue-grey to creamy white, dull to slightly shiny. Lower cortex black, lacking rhizines. Soredia present, in discrete soralia on the top of lobe tips. Apothecia not known. |
| Similar species & genera |
Hypogymnia pbysodes: soralia form in hooded lobe tips, typically much larger thalli.
Hypogymnia dichroma: larger lobes, brown, varnished upper cortex, appressed to substrate throughout. |
| Ecology | Epiphytic or on downed wood on a variety of hosts, very rarely on rock. Occasional across the boreal foothills and mountain regions, apparently absent from the shield, parkland and grassland regions. |
| Chemistry | Upper cortex PD+ pale yellow or PD-, K+ yellow, C-, KC- or rarely KC+ yellow, UV- (atranorin, chloroatranorin). Medulla K-, C-, KC+ orange-red, PD- (physodic acid, 3-hydroxyphysodic acid, ±2′-0-methylphysodic acid). |
| Molecular support |
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| Links | |
| Gallery |
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- Hypogymnia tubulosa close-up of soralia, Waterton National Park, AB
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- Hypogymnia tubulosa, Waterton National Park, AB
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- Hypogymnia tubulosa, Waterton National Park, AB
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- Hypogymnia tubulosa close-up of soralia, ALTA collection
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- Hypogymnia tubulosa, Mima Mounds, Washington, USA
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- Hypogymnia tubulosa intergrown with Parmelia sulcata, ABMI collection
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- Hypogymnia tubulosa, Waterton National Park, AB
