View source for Bucklandiella microcarpa

{{Treatment/ID
|accepted_name=Bucklandiella microcarpa
|accepted_authority=(Hedwig) Bednarek-Ochyra & Ochyra in R. Ochyra et al.
|publications={{Treatment/Publication
|title=in R. Ochyra et al., Cens. Cat. Polish Mosses,
|place=146. 2003,
}}
|basionyms={{Treatment/ID/Basionym
|name=Trichostomum microcarpon
|authority=Hedwig
|rank=species
|publication_title=Sp. Musc. Frond.,
|publication_place=112, plate 23, figs. 8–12. 1801
}}
|synonyms={{Treatment/ID/Synonym
|name=Racomitrium canadense
|authority=(Michaux) Bridel
|rank=species
}} {{Treatment/ID/Synonym
|name=Racomitrium heterostichum var. microcarpon
|authority=(Hedwig) Boulay
|rank=variety
}} {{Treatment/ID/Synonym
|name=Racomitrium heterostichum var. ramulosum
|authority=(Lindberg) G. N. Jones
|rank=variety
}} {{Treatment/ID/Synonym
|name=Racomitrium microcarpon
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Trichostomum canadense
|authority=
|rank=species
}}
|hierarchy=Grimmiaceae;Grimmiaceae subfam. Racomitrioideae;Bucklandiella;Bucklandiella sect. Marginatae;Bucklandiella microcarpa
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Grimmiaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Grimmiaceae subfam. Racomitrioideae]]</div><div class="higher-taxon"><small>genus</small>[[Bucklandiella]]</div><div class="higher-taxon"><small>section</small>[[Bucklandiella sect. Marginatae]]</div><div class="higher-taxon"><small>species</small>[[Bucklandiella microcarpa]]</div></div>
|volume=Volume 27
|mention_page=page 269, 272, 274, 278, 284, 285
|treatment_page=page 271
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism size;whole_organism size;whole_organism coloration;whole_organism coloration;whole_organism coloration;whole_organism coloration;whole_organism pubescence;whole_organism growth form;tuft architecture or fragility;tuft density"><b>Plants </b>small to medium-sized, rarely fairly large, forming loose or dense tufts or mats, green, yellowish or olive green to light yellowish or sometimes grayish in the upper part, brown to blackish proximally, not or hoary.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem atypical some measurement;stem atypical some measurement;stem some measurement;stem architecture;stem shape;branchlet height or length or size;branchlet position;branchlet shape;branchlet architecture"><b>Stems </b>prostrate to erect-ascending, (1–) 2–4 (–7) cm, copiously branched, mostly with short lateral, tuft-like subpinnate branchlets giving the plants a nodose appearance.</span> <span class="statement" id="st-d0_s2" data-properties="leaf arrangement;leaf architecture;distal part condition;distal part orientation;distal part texture;distal part atypical length;distal part atypical length;distal part length;distal part atypical width;distal part atypical width;distal part width;distal part shape;distal part shape;distal part shape;distal part shape;distal part shape;distal part condition;distal part orientation;distal part texture;distal part atypical length;distal part atypical length;distal part length;distal part atypical width;distal part atypical width;distal part width;distal part shape"><b>Leaves </b>loosely imbricate and often secund on drying, erect-spreading to recurved when moist, (1.5–) 2–3.4 (–3.8) × (0.4–) 0.5–0.7 (–0.8) mm, keeled in the distal part, narrowly canaliculate basally, piliferous or seldom epilose;</span> <span class="statement" id="st-d0_s3" data-properties="hairpoint orientation;hairpoint coloration;hairpoint course;hairpoint atypical some measurement;hairpoint some measurement;hairpoint shape">hairpoint erect, hyaline, capillaceus, flexuose, 0.3–0.7 (–1.1) mm, not or slightly decurrent down the leaf margins;</span> <span class="statement" id="st-d0_s4" data-properties="margin orientation;margin shape or vernation;margin length;leaf quantity;patch architecture">margins broadly recurved to revolute on one or both sides for 1/2–3/4 the leaf length, rarely to the apex, 1-stratose throughout, sometimes with 2-stratose patches;</span> <span class="statement" id="st-d0_s5" data-properties="costa architecture;costa shape;costa width;costa width;costa width;costa architecture;base width;base width;adaxial cell atypical quantity;adaxial cell atypical quantity;adaxial cell quantity;adaxial cell size;adaxial cell architecture;adaxial cell atypical quantity;adaxial cell quantity;adaxial cell size;adaxial cell architecture;adaxial cell atypical quantity;adaxial cell atypical quantity;adaxial cell quantity">costa percurrent, convex abaxially, (50–) 60–80 (–100) µm wide near the base, (35–) 40–55 µm wide distally, 2–3-stratose basally with (2–) 3–4 (–5) markedly enlarged adaxial cells, 2–3-stratose in the middle with 2–3 (–4) large adaxial cells and 2-stratose distally with (1–) 2 (–3) adaxial cells;</span> <span class="statement" id="st-d0_s6" data-properties="laminal cell architecture;laminal cell architecture or pubescence or relief;laminal cell relief">laminal cells 1-stratose, smooth or often strongly pseudopapillose;</span> <span class="statement" id="st-d0_s7" data-properties="distal and median cell architecture;distal and median cell shape;distal and median cell length;distal and median cell width;distal and median cell height or length or size;distal and median cell shape">distal and median cells strongly sinuose, rectangular, 20–30 × 9–10 µm, becoming shorter or oblate towards the margins;</span> <span class="statement" id="st-d0_s8" data-properties="wall size;wall architecture">basal-cells elongate to linear, 25–95 × 8–12 µm, with strongly incrassate and porose walls;</span> <span class="statement" id="st-d0_s9" data-properties="basal-cell shape;basal-cell length;basal-cell width;cell variability">alar cells not or weakly differentiated;</span> <span class="statement" id="st-d0_s10" data-properties="basal marginal cell shape;basal marginal cell shape;basal marginal cell architecture;basal marginal cell architecture;basal marginal cell coloration;basal marginal cell coloration;basal marginal cell coloration;border coloration;border architecture or arrangement;cell atypical quantity;cell atypical quantity;cell quantity">basal marginal cells quadrate to short-rectangular, rarely long-rectangular, esinuose or very seldom sinuose, hyaline or very rarely chlorophyllose, forming pellucid, 1 (–2) -seriate border of (5–) 10–20 (–25) cells, very occasionally not transparent.</span> <span class="statement" id="st-d0_s11" data-properties="innermost perichaetial leaf atypical quantity;innermost perichaetial leaf development;innermost perichaetial leaf shape;innermost perichaetial leaf shape;innermost perichaetial leaf shape;innermost perichaetial leaf coloration;cell-wall size"><b>Innermost </b>perichaetial leaves (4–6), markedly modified, ovate, acuminate, epilose or very seldom piliferous, hyaline to yellowish hyaline in the proximal half, chlorophyllose in the distal half with strongly incrassate cell-walls.</span> <span class="statement" id="st-d0_s12" data-properties="seta coloration;seta atypical some measurement;seta some measurement"><b>Seta </b>dark red to reddish-brown, (2.5–) 4.5–8 mm.</span> <span class="statement" id="st-d0_s13" data-properties="capsule shape;capsule atypical length;capsule length;capsule width;capsule coloration;capsule reflectance"><b>Capsule </b>obloid-cylindric to elongate-ovoid, (1.2–) 1.5–2 × 0.3–0.6 mm, brown, dull to weakly lustrous;</span> <span class="statement" id="st-d0_s14" data-properties="peristome tooth coloration;peristome tooth some measurement;peristome tooth relief;peristome tooth shape;peristome tooth height;prong quantity;perforation shape;basal membrane position">peristome teeth yellow-reddish, 310–350 µm, papillose, irregularly divided nearly to the base into 2 prongs, sometimes only with elongate perforations, without or with a low basal membrane, 10–15 µm high.</span> <span class="statement" id="st-d0_s15" data-properties="operculum shape;operculum some measurement;beak course;beak orientation"><b>Operculum </b>conical-rostrate, to 1 mm, with a straight or slanted beak.</span> <span class="statement" id="st-d0_s16" data-properties="spore atypical some measurement;spore atypical some measurement;spore some measurement"><b>Spores </b>(10–) 12–14 (–16) µm.</span><!--

-->{{Treatment/Body
|habitat=Acidic rocks, boulders and cliffs, as well as on soil or gravel, often in late snow areas, on stony mossy tundra, stony slopes and granite rock underhangs on talus slopes, mostly in exposed, dry or moist sites
|elevation=low to high elevations (0-1700 m)
|distribution=Greenland;B.C.;N.B.;Nfld. and Labr.;N.S.;Ont.;Que.;Yukon;Alaska;Maine;Minn.;Mont.;N.H.;N.J.;N.Y.;Vt.;Wash.;Europe;arctic;temperate Asia
|discussion=<p>Bucklandiella microcarpa is a temperate moss, occasionally penetrating into the Arctic. It has a bicentric distribution in North America, being most common and widespread in the eastern part of the continent and less frequent in the west, where it occurs mostly in the Rocky Mountains from the Yukon to Montana. It is principally a Euro-American species, with some scattered records in Siberia. In Europe it shows distinct continental tendencies and is absent from the oceanic western part, including the British Isles.</p><!--
--><p>Bucklandiella microcarpa is an unmistakable species that is at once distinct from other North American congeners by its long, pellucid basal marginal border of esinuose cells and markedly modified innermost perichaetial leaves, with chlorophyllose distal cells having strongly incrassate walls and basal laminal cells that are esinuose and have porose and prominently thickened lateral walls. Also, it is worth noting that the laminal cells are usually pseudopapillose in B. microcarpa and the pseudopapillosity is especially pronounced in the western North American populations.</p><!--
--><p>Bucklandiella microcarpa resembles B. affinis, B. heterosticha, B. sudetica, and B. venusta in leaf shape and in having pilose leaves. The first two species are also similar in having typically 1-stratose leaf margins. In addition to their less well developed or absent basal marginal border, these species differ from B. microcarpa in having broader costae: 80–100 µm versus 60–80 µm in the proximal portion. Bucklandiella sudetica and B. venusta also differ from B. microcarpa in having regularly 2-stratose leaf margins. In Alaska, B. microcarpa is likely to be mistaken with Dryptodon jacuticus (= Grimmia leibergii), which has long-pilose leaves and similar costal anatomy, with 3–4 much enlarged adaxial cells. However, D. jacuticus has 2-stratose leaf margins and subquadrate to short-rectangular laminal cells in the distal part, straight or only slightly flexuose hair-points, and undifferentiated basal marginal cells.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Bucklandiella microcarpa
|authority=(Hedwig) Bednarek-Ochyra & Ochyra in R. Ochyra et al.
|rank=species
|parent rank=section
|synonyms=Racomitrium canadense;Racomitrium heterostichum var. microcarpon;Racomitrium heterostichum var. ramulosum;Racomitrium microcarpon;Trichostomum canadense
|basionyms=Trichostomum microcarpon
|family=Grimmiaceae
|habitat=Acidic rocks, boulders and cliffs, as well as on soil or gravel, often in late snow areas, on stony mossy tundra, stony slopes and granite rock underhangs on talus slopes, mostly in exposed, dry or moist sites
|elevation=low to high elevations (0-1700 m)
|distribution=Greenland;B.C.;N.B.;Nfld. and Labr.;N.S.;Ont.;Que.;Yukon;Alaska;Maine;Minn.;Mont.;N.H.;N.J.;N.Y.;Vt.;Wash.;Europe;arctic;temperate Asia
|reference=None
|publication title=in R. Ochyra et al., Cens. Cat. Polish Mosses,
|publication year=
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V27/V27_374.xml
|subfamily=Grimmiaceae subfam. Racomitrioideae
|genus=Bucklandiella
|section=Bucklandiella sect. Marginatae
|species=Bucklandiella microcarpa
|adaxial cell architecture=2-stratose;2-3-stratose
|adaxial cell atypical quantity=2;3
|adaxial cell quantity=2;2;3
|adaxial cell size=large;enlarged
|basal marginal cell architecture=sinuose;esinuose
|basal marginal cell coloration=transparent;very rarely;hyaline
|basal marginal cell shape=long-rectangular;quadrate;short-rectangular
|basal membrane position=low
|basal-cell length=25um;95um
|basal-cell shape=elongate;linear
|basal-cell width=8um;12um
|base width=40um;55um
|beak course=straight
|beak orientation=slanted
|border architecture or arrangement=1(-2)-seriate
|border coloration=pellucid
|branchlet architecture=subpinnate
|branchlet height or length or size=short
|branchlet position=lateral
|branchlet shape=tuft-like
|capsule atypical length=1.2mm;1.5mm
|capsule coloration=brown
|capsule length=1.5mm;2mm
|capsule reflectance=dull;weakly lustrous
|capsule shape=obloid-cylindric;elongate-ovoid
|capsule width=0.3mm;0.6mm
|cell atypical quantity=20;25
|cell quantity=10;20
|cell variability=differentiated
|cell-wall size=incrassate
|costa architecture=2-3-stratose;percurrent
|costa shape=convex
|costa width=60um;80um
|distal and median cell architecture=sinuose
|distal and median cell height or length or size=shorter
|distal and median cell length=20um;30um
|distal and median cell shape=oblate;rectangular
|distal and median cell width=9um;10um
|distal part atypical length=3.4mm;3.8mm
|distal part atypical width=0.7mm;0.8mm
|distal part condition=drying;drying
|distal part length=2mm;3.4mm
|distal part orientation=erect-spreading;recurved
|distal part shape=keeled;piliferous;canaliculate;piliferous;canaliculate;keeled
|distal part texture=moist;moist
|distal part width=0.5mm;0.7mm
|hairpoint atypical some measurement=0.7mm;1.1mm
|hairpoint coloration=hyaline
|hairpoint course=flexuose
|hairpoint orientation=erect
|hairpoint shape=decurrent
|hairpoint some measurement=0.3mm;0.7mm
|innermost perichaetial leaf atypical quantity=4;6
|innermost perichaetial leaf coloration=hyaline;yellowish hyaline
|innermost perichaetial leaf development=modified
|innermost perichaetial leaf shape=piliferous;acuminate;ovate
|laminal cell architecture=1-stratose
|laminal cell architecture or pubescence or relief=smooth
|laminal cell relief=pseudopapillose
|leaf architecture=secund
|leaf arrangement=imbricate
|leaf quantity=1/2;3/4
|margin length=1-stratose
|margin orientation=recurved
|margin shape or vernation=revolute
|operculum shape=conical-rostrate
|operculum some measurement=0mm;1mm
|patch architecture=2-stratose
|perforation shape=elongate
|peristome tooth coloration=yellow-reddish
|peristome tooth height=10um;15um
|peristome tooth relief=papillose
|peristome tooth shape=divided
|peristome tooth some measurement=310um;350um
|prong quantity=2
|seta atypical some measurement=2.5mm;4.5mm
|seta coloration=dark red;reddish-brown
|seta some measurement=4.5mm;8mm
|spore atypical some measurement=14um;16um
|spore some measurement=12um;14um
|stem architecture=branched
|stem atypical some measurement=4cm;7cm
|stem orientation=prostrate;erect-ascending
|stem shape=nodose
|stem some measurement=2cm;4cm
|tuft architecture or fragility=loose
|tuft density=dense
|wall architecture=porose
|wall size=incrassate
|whole_organism coloration=brown;blackish
|whole_organism growth form=plant
|whole_organism pubescence=not hoary
|whole_organism size=large;small;medium-sized
}}<!--

-->[[Category:Treatment]][[Category:Bucklandiella sect. Marginatae]]