Difference between revisions of "Carex scopulorum"
Amer. J. Sci. 164: 422, figs. 1–6. 1902.
FNA>Volume Importer |
FNA>Volume Importer |
||
| Line 21: | Line 21: | ||
|distribution=North America. | |distribution=North America. | ||
|discussion=<p>Varieties 3 (3 in the flora).</p><!-- | |discussion=<p>Varieties 3 (3 in the flora).</p><!-- | ||
| − | --><p>Carex scopulorum is the common species of sect. Phacocystis in subalpine, seasonally wet meadows in the western mountains. It is replaced on the western slope of the Cascade range by C. spectabilis, a member of sect. Scitae. Where sympatric with C. aquatilis, C. scopulorum occurs in drier portions of the habitat.</p><!-- | + | --><p><i>Carex scopulorum</i> is the common species of sect. Phacocystis in subalpine, seasonally wet meadows in the western mountains. It is replaced on the western slope of the Cascade range by <i>C. spectabilis</i>, a member of sect. Scitae. Where sympatric with <i>C. aquatilis</i>, <i>C. scopulorum</i> occurs in drier portions of the habitat.</p><!-- |
| − | --><p>Carex scopulorum is frequently confused with members of sect. Racemosae because of the similarity in habitat, size, inflorescence dimensions, and perigynium shape; it is distinguished by the two stigmas and flattened achenes. Carex scopulorum is probably most closely related to C. bigelowii, based on the similarity in vegetative morphology, hypostomic leaves, perigynia characteristics (absence of veins), and chromosome numbers.</p> | + | --><p><i>Carex scopulorum</i> is frequently confused with members of sect. Racemosae because of the similarity in habitat, size, inflorescence dimensions, and perigynium shape; it is distinguished by the two stigmas and flattened achenes. <i>Carex scopulorum</i> is probably most closely related to <i>C. bigelowii</i>, based on the similarity in vegetative morphology, hypostomic leaves, perigynia characteristics (absence of veins), and chromosome numbers.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
| Line 65: | Line 65: | ||
|publication year=1902 | |publication year=1902 | ||
|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/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V23/V23_714.xml |
|genus=Carex | |genus=Carex | ||
|section=Carex sect. Phacocystis | |section=Carex sect. Phacocystis | ||
Revision as of 16:10, 18 September 2019
Plants not cespitose. Culms acutely angled, 10–90 cm, glabrous. Leaves: basal sheaths red-brown; sheath apex U-shaped; blades hypostomic, glabrous, 3–6 mm wide. Inflorescences: proximal bract shorter than inflorescence, 0.5–3 mm wide. Spikes erect; proximal 2–4 spikes pistillate, 1–2.5 cm × 3–5 mm, base cuneate; terminal 1–2 spikes staminate. Pistillate scales purple-brown, equaling perigynia, apex obtuse or acute, awnless. Perigynia ascending, pale brown with red-brown spots on apical 1/2, veinless, somewhat flattened, loosely enclosing achenes, ellipsoid or obovoid, 2–4 × 1.2–2.3 mm, dull, apex obtuse or acute, papillose; beak red-brown, 0.2–0.3 mm. Achenes not constricted, dull.
Distribution
North America.
Discussion
Varieties 3 (3 in the flora).
Carex scopulorum is the common species of sect. Phacocystis in subalpine, seasonally wet meadows in the western mountains. It is replaced on the western slope of the Cascade range by C. spectabilis, a member of sect. Scitae. Where sympatric with C. aquatilis, C. scopulorum occurs in drier portions of the habitat.
Carex scopulorum is frequently confused with members of sect. Racemosae because of the similarity in habitat, size, inflorescence dimensions, and perigynium shape; it is distinguished by the two stigmas and flattened achenes. Carex scopulorum is probably most closely related to C. bigelowii, based on the similarity in vegetative morphology, hypostomic leaves, perigynia characteristics (absence of veins), and chromosome numbers.
Selected References
None.
Lower Taxa
Key
| 1 | Proximal sheaths brown, glabrous; culms glabrous on angles; perigynia obovoid. | Carex scopulorum var. scopulorum |
| 1 | Proximal sheaths red-brown, scabrous; culms scabrous on angles; perigynia ellipsoid to obovoid. | > 2 |
| 2 | Proximal sheaths with blades, fronts veinless; apex of perigynium obtuse or rounded. | Carex scopulorum var. bracteosa |
| 2 | Proximal sheaths bladeless, fronts with persistent veins; apex of perigynium acute. | Carex scopulorum var. prionophylla |