Difference between revisions of "Bucklandiella sect. Laevifoliae"
in R. Ochyra et al., Cens. Cat. Polish Mosses, 142. 2003,.
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{{Treatment/ID | {{Treatment/ID | ||
|accepted_name=Bucklandiella sect. Laevifoliae | |accepted_name=Bucklandiella sect. Laevifoliae | ||
− | |accepted_authority=(Kindberg) Bednarek-Ochyra & Ochyra | + | |accepted_authority=(Kindberg) Bednarek-Ochyra & Ochyra |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
|title=in R. Ochyra et al., Cens. Cat. Polish Mosses, | |title=in R. Ochyra et al., Cens. Cat. Polish Mosses, | ||
|place=142. 2003, | |place=142. 2003, | ||
}} | }} | ||
− | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Laevifolia | |name=Laevifolia | ||
|authority=Kindberg | |authority=Kindberg | ||
+ | |rank=unranked | ||
+ | |publication_title=Eur. N. Amer. Bryin., | ||
+ | |publication_place=235. 1898 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Racomitrium sect. Laevifolia | |name=Racomitrium sect. Laevifolia | ||
|authority=(Kindberg) Noguchi | |authority=(Kindberg) Noguchi | ||
+ | |rank=section | ||
}} | }} | ||
|hierarchy=Grimmiaceae;Grimmiaceae subfam. Racomitrioideae;Bucklandiella;Bucklandiella sect. Laevifoliae | |hierarchy=Grimmiaceae;Grimmiaceae subfam. Racomitrioideae;Bucklandiella;Bucklandiella sect. Laevifoliae | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Bucklandiella sect. Laevifoliae | name=Bucklandiella sect. Laevifoliae | ||
− | + | |authority=(Kindberg) Bednarek-Ochyra & Ochyra | |
− | |authority=(Kindberg) Bednarek-Ochyra & Ochyra | ||
|rank=section | |rank=section | ||
|parent rank=genus | |parent rank=genus | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
− | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V27/V27_376.xml |
|subfamily=Grimmiaceae subfam. Racomitrioideae | |subfamily=Grimmiaceae subfam. Racomitrioideae | ||
|genus=Bucklandiella | |genus=Bucklandiella |
Latest revision as of 21:25, 5 November 2020
Plants moderately sized to large, fairly slender to coarse and rigid, often hoary. Stems 1–12 cm long, creeping, curved-ascending to erect, sparingly or profusely branched. Leaves 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. Inner perichaetial leaves strongly modified, hyaline and epilose, or very seldom shortly piliferous and then chlorophyllose close to the apex. Peristome teeth with a basal membrane.
Distribution
North America, Europe, Atlantic Islands (Azores, Canary Islands, Iceland, Madeira).
Discussion
Species 7 (5 in the flora).
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.
Selected References
None.
Lower Taxa
Key
1 | Leaves epilose, with a chlorophyllose apex, awns absent | > 2 |
1 | At least some leaves with a short or long, hyaline to subhyaline awn | > 4 |
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 |
2 | Leaf margins recurved to revolute to the apex; alar cells not or weakly differentiated | > 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 |
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 |
4 | Costa broadly canaliculate in mid leaf, moderately convex on the abaxial side and with 4-9 cells on the adaxial side | > 5 |
4 | Costa narrowly canaliculate or carinate in mid leaf, strongly convex on the abaxial side and with 3-4 adaxial cells | > 6 |
5 | Plants moderately robust and less coarse; leaf margins 1-stratose with infrequent 2-stratose patches and smooth distally; awns weakly flexuose. | Bucklandiella heterosticha |
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 |
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 | > 7 |
6 | Leaf margins usually 1-stratose with occasional 2-stratose spots and not lumpy distally; awns soft, usually flexuose and faintly spinulose | > 8 |
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 |
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 |
8 | Costa carinate and predominantly 3-stratose in the middle and lower distal portion. | Bucklandiella affinis |
8 | Costa canaliculate and predominantly 2-stratose in the middle and lower distal portion | Bucklandiella heterosticha |