Pertusaria saximontana Wetmore
Publ. Mus. Michigan State Univ., Biol. Ser. 3: 369, 1968.
Synonyms: Pertusaria christae Dibben & Poelt
Distribution:
Description: Thallus crustose, continuous to rimose-areolate, 0.4-1 mm thick, smooth to indistinctly verrucose, pale to dark olivaceous brown to greenish grey or ash-grey, usually glossy, epruinose, without a distinct prothallus, forming up to 6 cm wide patches. Apothecia lecanorine, immersed in basally constricted, 0.5-1.5(-2) mm wide thalline warts, often fused, 1(-5) per wart, with an initially punctiform, but soon expanded, urceolate to finally flat, black to blackish brown, epruinose or rarely coarsely pruinose, uneven and roughly verruculose, 0.3-1.5 mm wide disc and an often crenulate and radially cracked thalline margin. Epithecium dark brown to olive-brown, K+ violet; hymenium colourless to pale yellow-brown, often divided by vertical stripes of brown tissue, 230-300 μm high; paraphyses moderately branched and anastomosing, 1-1.5 μm thick, the apical cells not swollen; hypothecium 40-70 μm high colourless to pale olive-brown, the pigmented parts K+ violet. Asci (1-)2(-4)-spored, broadly cylindrical to clavate, the apex with a broad ocular chamber, the outer sheath K/I+ blue, otherwise K/I-, Pertusaria-type, with uniseriately arranged spores. Ascospores 1-celled, hyaline, oval to ellipsoid, (50-)77-110(-140) x (26-)40-62(-78) μm, with 1-layered, 4-14 μm thick, verruculose walls. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: either 2-O-methylperlatolic (in European samples) or 2-O-methylconfluentic acid (major), confluentic acid, di-O-methylolivetoride, planaic acid (all minor or absent), plus traces of unknown depsides.Note: a rare arctic-alpine, circumpolar species based on a type from Wyoming, mostly found on wood and on bark of conifers in Western North America, but the only record from the Alps (Austria) was terricolous. For further details see Zhurbenko & Lumbsch (2006). To be looked for in the Italian Alps.
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Predictive model
Felix Schumm CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
Felix Schumm - CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
Felix Schumm - CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
Felix Schumm - CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
Felix Schumm - CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
Felix Schumm - CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
Felix Schumm - CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
1: 2-O-methylconfluentic acid, 2: unknown, conf. J.A. Elix Pertusaria
Felix Schumm - CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Predictive model
Felix Schumm CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
Felix Schumm - CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
Felix Schumm - CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
Felix Schumm - CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
Felix Schumm - CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
Felix Schumm - CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
Felix Schumm - CC BY-SA 4.0
[2432], USA, Colorado, Garfield County, Grand Hogback 19,2 km NE of Riffle at Rifle Falls, 2150 m, on dead and weathered wood of standing tree-trunks of Juniperus osteosperma and Pinus edulis. Leg. W.A. Weber, Kunkel & Munger,13. June 1974. Lichenes Exsiccati 459.
1: 2-O-methylconfluentic acid, 2: unknown, conf. J.A. Elix Pertusaria
