Difference between revisions of "Carex sect. Filifoliae"
in N. L. Britton et al., N. Amer. Fl. 18: 177. 1935.
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| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Filifoliae | |name=Filifoliae | ||
|authority=Tuckerman | |authority=Tuckerman | ||
| + | |publication_title=Enum. Meth. Caric., | ||
| + | |publication_place=8. 1844 | ||
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| − | |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/V23/V23_1080.xml |
|genus=Carex | |genus=Carex | ||
|section=Carex sect. Filifoliae | |section=Carex sect. Filifoliae | ||
Revision as of 19:07, 24 September 2019
Plants cespitose, short-rhizomatous. Culms brown at base. Leaves: basal sheaths fibrous; sheath fronts membranous; blades filiform or V-shaped in cross section when young, glabrous. Inflorescences a single spike; bracts absent; spike androgynous. Proximal pistillate scales with apex obtuse or mucronate. Perigynia erect or ascending, veinless, or with 2 prominent marginal veins, obovate, ovate, or elliptic, rounded trigonous in cross section, base ± tapering or rounded, apex rounded or truncate, to abrupt beak or not, puberulent distally; beak 0.2–1 mm, orifice truncate. Stigmas 3. Achenes trigonous, almost as large as bodies of perigynia; style deciduous.
Distribution
North America, Mexico.
Discussion
Species 5 (3 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Leaf blades folded to channeled, not quill-shaped, 1.5–2 mm wide near base; proximal pistillate scale usually conspicuously long-awned. | Carex oreocharis |
| 1 | Leaf blades involute-cylindric, quill-shaped, 0.2–0.8 mm wide near base; proximal pistillate scale obtuse to short-awned. | > 2 |
| 2 | Perigynium body glabrous or at most very sparsely short-hirsute near beak; style base not conspicuously exserted from beak, rachilla absent. | Carex elynoides |
| 2 | Perigynium body short-pubescent, at least on distal 1/4; style base often conspicuously exserted from beak; rachilla present. | Carex filifolia |