View source for Bucklandiella sect. Laevifoliae

{{Treatment/ID
|accepted_name=Bucklandiella sect. Laevifoliae
|accepted_authority=(Kindberg) Bednarek-Ochyra & Ochyra
|publications={{Treatment/Publication
|title=in R. Ochyra et al., Cens. Cat. Polish Mosses,
|place=142. 2003,
}}
|basionyms={{Treatment/ID/Basionym
|name=Laevifolia
|authority=Kindberg
|rank=unranked
|publication_title=Eur. N. Amer. Bryin.,
|publication_place=235. 1898
}}
|synonyms={{Treatment/ID/Synonym
|name=Racomitrium sect. Laevifolia
|authority=(Kindberg) Noguchi
|rank=section
}}
|hierarchy=Grimmiaceae;Grimmiaceae subfam. Racomitrioideae;Bucklandiella;Bucklandiella sect. Laevifoliae
|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. Laevifoliae]]</div></div>
|volume=Volume 27
|mention_page=page 268, 276
|treatment_page=page 273
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>moderately sized to large, fairly slender to coarse and rigid, often hoary. <b>Stems</b> 1–12 cm long, creeping, curved-ascending to erect, sparingly or profusely branched. <b>Leaves</b> lanceolate, straight to strongly curved; margins recurved to revolute on both sides to the apex, or less often to 2/3–3/4 of the leaf length, 1-stratose or less often 2-stratose; muticous or piliferous, awns often long, erect, flexuose, flattened, distantly denticulate at the margins and sometimes spinulose on the abaxial side; costa 3–4-stratose and strongly convex abaxially in the proximal portion; alar cells undifferentiated; basal marginal border absent. <b>Inner</b> perichaetial leaves strongly modified, hyaline and epilose, or very seldom shortly piliferous and then chlorophyllose close to the apex. <b>Peristome</b> teeth with a basal membrane.</span><!--

-->{{Treatment/Body
|distribution=North America;Europe;Atlantic Islands (Azores;Canary Islands;Iceland;Madeira).
|discussion=<p>Species 7 (5 in the flora).</p><!--
--><p>The strongly differentiated innermost perichaetial bracts that are ovate, epilose, and hyaline to yellowish hyaline throughout are diagnostic of section Laevifoliae. This is a Euro-American taxon consisting of two species that are endemic to Europe, three endemic to North America, and two that are Euro-American disjuncts.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Leaves epilose, with a chlorophyllose apex, awns absent
|[[#key-0-2| > 2]]
|-id=key-0-1
|1
|At least some leaves with a short or long, hyaline to subhyaline awn
|[[#key-0-4| > 4]]
|-id=key-0-2
|2
|Leaf margins recurved to 2/3-3/4 of the leaf length; alar cells differentiated, short, thick- walled and porose, forming a well-defined, sometimes auriculate group.
|[[Bucklandiella pacifica|Bucklandiella pacifica]]
|-id=key-0-2
|2
|Leaf margins recurved to revolute to the apex; alar cells not or weakly differentiated
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Leaf margins 1-stratose, occasionally with 2-stratose patches and smooth in the distal part; costa broader, 80-100 µm, and mostly (3-)4-stratose basally (epilose plants).
|[[Bucklandiella affinis|Bucklandiella affinis]]
|-id=key-0-3
|3
|Leaf margins usually 2-stratose for 1-3 cell rows, wavy and lumpy in the distal part; costa narrow, 50-80 µm, and usually 3-stratose basally (epilose plants).
|[[Bucklandiella venusta|Bucklandiella venusta]]
|-id=key-0-4
|4
|Costa broadly canaliculate in mid leaf, moderately convex on the abaxial side and with 4-9 cells on the adaxial side
|[[#key-0-5| > 5]]
|-id=key-0-4
|4
|Costa narrowly canaliculate or carinate in mid leaf, strongly convex on the abaxial side and with 3-4 adaxial cells
|[[#key-0-6| > 6]]
|-id=key-0-5
|5
|Plants moderately robust and less coarse; leaf margins 1-stratose with infrequent 2-stratose patches and smooth distally; awns weakly flexuose.
|[[Bucklandiella heterosticha|Bucklandiella heterosticha]]
|-id=key-0-5
|5
|Plants coarse and robust; leaf margins 2-stratose for 1-3 cell rows and lumpy distally, broadly recurved to revolute throughout; awns stiff, not flexuose.
|[[Bucklandiella obesa|Bucklandiella obesa]]
|-id=key-0-6
|6
|Leaf margins usually 2-stratose for 1-2(-3) cell rows and lumpy in the distal portion; awns stout, not or weakly flexuose, strongly spinulose
|[[#key-0-7| > 7]]
|-id=key-0-6
|6
|Leaf margins usually 1-stratose with occasional 2-stratose spots and not lumpy distally; awns soft, usually flexuose and faintly spinulose
|[[#key-0-8| > 8]]
|-id=key-0-7
|7
|Plants robust, almost unbranched; costa broad, 80-120 µm with 4-9 adaxial cells in the basal portion; leaves long, 3-4 mm.
|[[Bucklandiella obesa|Bucklandiella obesa]]
|-id=key-0-7
|7
|Plants small to medium-sized, copiously branched; costa narrow, 50-80 µm with 3-5 adaxial cells in the basal portion; leaves short, 1.7-2.4 mm.
|[[Bucklandiella venusta|Bucklandiella venusta]]
|-id=key-0-8
|8
|Costa carinate and predominantly 3-stratose in the middle and lower distal portion.
|[[Bucklandiella affinis|Bucklandiella affinis]]
|-id=key-0-8
|8
|Costa canaliculate and predominantly 2-stratose in the middle and lower distal portion
|[[Bucklandiella heterosticha|Bucklandiella heterosticha]]
|}
</div></div><!--

-->{{#Taxon:
name=Bucklandiella sect. Laevifoliae
|authority=(Kindberg) Bednarek-Ochyra & Ochyra
|rank=section
|parent rank=genus
|synonyms=Racomitrium sect. Laevifolia
|basionyms=Laevifolia
|family=Grimmiaceae
|distribution=North America;Europe;Atlantic Islands (Azores;Canary Islands;Iceland;Madeira).
|reference=None
|publication title=in R. Ochyra et al., Cens. Cat. Polish Mosses,
|publication year=
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V27/V27_376.xml
|subfamily=Grimmiaceae subfam. Racomitrioideae
|genus=Bucklandiella
|section=Bucklandiella sect. Laevifoliae
}}<!--

-->[[Category:Treatment]][[Category:Bucklandiella]]