Difference between revisions of "Sphagnum sect. Polyclada"
J. Bot. 38: 119. 1900,.
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|place=38: 119. 1900, | |place=38: 119. 1900, | ||
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| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Polyclada | |name=Polyclada | ||
|authority=C. E. O. Jensen | |authority=C. E. O. Jensen | ||
| + | |publication_title=in Botaniske Forening København, Festskrift, | ||
| + | |publication_place=82. 1890 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
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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/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V27/V27_79.xml |
|genus=Sphagnum | |genus=Sphagnum | ||
|section=Sphagnum sect. Polyclada | |section=Sphagnum sect. Polyclada | ||
Revision as of 19:41, 24 September 2019
Plants small to moderate-sized, with distinct capitulum; green, brown or variegated brown and red. Stems green to red-brown, superficial cortex of 2–4 layers of efibrillose, non-ornamented, enlarged, short-rectangular cells. Stem leaves smaller than branch leaves, triangular-lingulate, with rounded apex, border entire; hyaline cells efibrillose, non-ornamented, rhomboid, septate; resorbed on convex surface; concave surface intact except near apex. Branches dimorphic, spreading branches stiff; pendent branches slender and delicate. Branch fascicles with 3(–8) spreading and 3(–8) pendent branches. Branch stems with distinct solitary retort cells, necks not or slightly rostrate. Branch leaves ovate-lanceolate, apex involute, border entire; hyaline cells fibrillose and non-ornamented, convex surface with 4–6 small ringed ovate pores (approximately 1/4 the diameter of the cell), concave surface with 0–4 unringed pores per cell; chlorophyllous cells elliptic to truncate-elliptic in transverse section, qually exposed on both surfaces. Sexual condition monoicous or dioicous. Capsule with few pseudostomata. Spores 15–24 µm; finely papillose on both surfaces; proximal laesura less than 0.5 the length of the spore.
Distribution
North America, Eurasia.
Discussion
Species 1.
Selected References
None.