Search Results - "Björk, Curtis"

Centers of regionally endemic vascular plants in northwestern North America: a quantified approach by Björk, Curtis R.

“…Certain areas of northwestern North America have been identified as plant endemism hotspots previously, but without repeatable methods or comparable results…”
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Stand openness predicts hair lichen (Bryoria) abundance in the lower canopy, with implications for the conservation of Canada’s critically imperiled Deep-Snow Mountain Caribou (Rangifer tarandus caribou) by Goward, Trevor, Gauslaa, Yngvar, Björk, Curtis R., Woods, Derek, Wright, Kenneth G.

“…•Hair lichen (Bryoria) abundance increases with stand openness.•A simple measure of stand openness can predict Bryoria abundance.•Different host trees support…”
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Five new species of North American Taraxacum (Asteraceae) by Björk, Curtis R.

“…Five new species of native North American Taraxacu m are described: T . argilliticola , T . cordilleranum , T . lautellum , T . pugioniferum , and T. simplex ,…”
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Townsendialemhiensis (Asteraceae, Astereae): A narrowly endemic new species from Idaho, USA by Lee, Christopher, Björk, Curtis R, Whitton, Jeannette

“…(Asteraceae) is described from the Lemhi Valley of east-central Idaho. From a genus with weak intrinsic isolating barriers, remains distinct apparently due to…”
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Townsendia lemhiensis (Asteraceae, Astereae): A narrowly endemic new species from Idaho, USA by Lee, Christopher, Björk, Curtis R., Whitton, Jeannette

“…Townsendia lemhiensis (Asteraceae) is described from the Lemhi Valley of east-central Idaho. From a genus with weak intrinsic isolating barriers, T. lemhiensis…”
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On the origin of orphan hybrids between Aquilegia formosa and Aquilegia flavescens by Groh, Jeffrey S, Percy, Diana M, Björk, Curtis R, Cronk, Quentin C B

“…Abstract We report the investigation of an Aquilegia flavescens × A. formosa population in British Columbia that is disjunct from its parents—the latter…”
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Lichens on dead wood: species-substrate relationships in the epiphytic lichen floras of the Pacific Northwest and Fennoscandia by Spribille, Toby, Thor, Göran, Bunnell, Fred L., Goward, Trevor, Björk, Curtis R.

“…Dead wood is an important habitat feature for lichens in forest ecosystems, but little is known about how many and which lichens are dependent on dead wood. We…”
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Expansion of the Stictidaceae by the addition of the saxicolous lichen-forming genus Ingvariella by Fernández-Brime, Samantha, Llimona, Xavier, Molnar, Katalin, Stenroos, Soili, Högnabba, Filip, Björk, Curtis, Lutzoni, François, Gaya, Ester

“…The monotypic, lichen-forming genus Ingvariella originally was segregated from Diploschistes and placed within the Thelotremataceae (Ostropales) based on…”
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Contributions to an epiphytic lichen flora of northwest North America: I. Eight new species from British Columbia inland rain forests by Spribille, Toby, Björk, Curtis R, Ekman, Stefan, Elix, John A, Goward, Trevor, Printzen, Christian, Tønsberg, Tor, Wheeler, Tim

“…Recent surveys of the inland rain forests of British Columbia and adjacent regions have brought to light an unexpectedly rich epiphytic lichen flora, including…”
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Douglasia conservatorum (Primulaceae), a New Species from Idaho and Montana, U.S.A by Björk, Curtis R.

“…Douglasia conservatorum Björk is described as a new species from a single population in the Coeur d'Alene Mountains along the Idaho/Montana border in the…”
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Enterographa Oregonensis (Roccellaceae), a New Foliicolous Species from The Northwest Coast of North America by Sparrius, Laurens B, Björk, Curtis R

“…A new foliicolous lichen species, Enterographa oregonensis (Ascomycota: Arthoniales: Roccellaceae) is described from temperate coastal North America. It…”
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Townsendia lemhiensis : A narrowly endemic new species from Idaho, USA by Lee, Christopher, Björk, Curtis R, Whitton, Jeannette

“… Townsendia lemhiensis (Asteraceae) is described from the Lemhi Valley of east-central Idaho. From a genus with weak intrinsic isolating barriers, T…”
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Eriogonum soliceps (Polygonaceae: Eriogonoideae), a new species from east-central Idaho and southwestern Montana by Reveal, James L., Björk, Curtis R.

“…Reveal, J. L. (Professor Emeritus, University of Maryland, College Park, MD 20742-5815; Honorary Curator, The New York Botanical Garden, Bronx, NY 10458;…”
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Erigeron pacalis (Asteraceae), a New Species from Western Canadian Boreal Grasslands by Björk, Curtis R.

“…Erigeron pacalis Björk (Asteraceae) is a new species found only in the Peace River Grasslands of northeastern British Columbia, Canada. Its characteristics…”
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British Columbia by Björk, Curtis

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British Columbia by Björk, Curtis

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AN INVESTIGATION OF MORPHOLOGICAL EVIDENCE SUPPORTS THE RESURRECTION OF PYRROCOMA SCABERULA (ASTERACEAE: ASTEREAE) by Björk, Curtis R., Darrach, Mark

“…Field data were gathered from 31 wild populations of Pyrrocoma liatriformis sensu lato (Asteraceae, Astereae). These are measures of degree of tomentosity and…”
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Larch Seed Trees Sustain Arboreal Lichens and Encourage Recolonization of Regenerating Stands by Bunnell, F.L, Goward, T, Houde, I, Björk, C

“…In many areas Bryoria lichen is a major winter food for deer and caribou. We examined the role of western larch (Larix occidentalis) seed trees in retaining…”
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Sedum valens (Crassulaceae), a New Species from the Salmon River Canyon of Idaho by Bjoerk, Curtis R

“…Sedum valens (Crassulaceae) is described from the Salmon River Canyon of central Idaho. Though it shares numerous morphological traits with Sedum borschii and…”
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Astragalus asotinensis (Fabaceae), a Newly Discovered Species from Washington and Idaho, United States by Björk, Curtis R., Fishbein, Mark

“…Astragalus asotinensis Björk & Fishbein (Fabaceae) is newly described from a single population on limestone of the Limekiln Formation at the mouth of Hells…”
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