Difference between revisions of "Bucklandiella sect. Lawtonia"
in R. Ochyra et al., Cens. Cat. Polish Mosses, 143. 2003 (as Lawtoniae),.
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|name=Racomitrium sect. Lawtonia | |name=Racomitrium sect. Lawtonia | ||
|authority=Bednarek-Ochyra | |authority=Bednarek-Ochyra | ||
| + | |rank=section | ||
|publication_title=Fragm. Florist. Geobot. Ser. Polon. | |publication_title=Fragm. Florist. Geobot. Ser. Polon. | ||
|publication_place=2: 65. 1995 | |publication_place=2: 65. 1995 | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Bucklandiella sect. Lawtonia | name=Bucklandiella sect. Lawtonia | ||
| − | |||
|authority=(Bednarek-Ochyra) Bednarek-Ochyra & Ochyra in R. Ochyra et al. | |authority=(Bednarek-Ochyra) Bednarek-Ochyra & Ochyra in R. Ochyra et al. | ||
|rank=section | |rank=section | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V27/V27_382.xml |
|subfamily=Grimmiaceae subfam. Racomitrioideae | |subfamily=Grimmiaceae subfam. Racomitrioideae | ||
|genus=Bucklandiella | |genus=Bucklandiella | ||
Revision as of 22:01, 16 December 2019
Plants fairly large to robust, coarse and rigid, yellowish, olivaceous or brownish in the upper part. Stems often more than 10 cm long. Leaves lanceolate; margins recurved on both sides to 1/3–1/2(–3/4) of the leaf length, 1-stratose; long pilose, awns erect-recurved to squarrose, flattened, distantly sharply denticulate at the margins, distinctly decurrent; costa predominantly 3-stratose basally; alar cells undifferentiated; basal marginal border absent or present. Inner perichaetial leaves strongly modified, yellowish hyaline, chlorophyllose distally, sometimes with a short hyaline hair-point. Capsule peristome teeth without a basal membrane.
Distribution
nw North America, e Asia (China, Japan, Korea, Russian Far East, Taiwan).
Discussion
Species 2 (1 in the flora).
The strongly modified innermost perichaetial bracts with thick-walled, chlorophyllose distal portion and sometimes also with a short hyaline hair-point, as well as not flexuose and distinctly erect-recurved to squarrose hyaline leaf hair-points are diagnostic for sect. Lawtonia. Apart from Bucklandiella lawtoniae, it contains only B. laeta, a closely related East Asian counterpart of the American species.
Selected References
None.