Difference between revisions of "Cyperus subg. Pycreus"
Carices North. U. S., 517. 1847.
Basionym: Undefined subg. Pycreus Palisot de Beauvois
Synonyms: Cyperus sect. Pycreus (Palisot de Beauvois) Grisebach
Treatment appears in FNA Volume 23.
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|distribution=Worldwide. | |distribution=Worldwide. | ||
|discussion=<p>Species ca. 100 (11 in the flora).</p><!-- | |discussion=<p>Species ca. 100 (11 in the flora).</p><!-- | ||
| − | --><p>Laterally compressed, biconvex achenes, a feature not occurring elsewhere in the family, distinguish Cyperus subg. Pycreus. The taxon has been treated as a genus in Flora Mesoamericana (C. D. Adams 1994), an idea that may have merit.</p> | + | --><p>Laterally compressed, biconvex achenes, a feature not occurring elsewhere in the family, distinguish <i>Cyperus </i>subg.<i> Pycreus</i>. The taxon has been treated as a genus in Flora Mesoamericana (C. D. Adams 1994), an idea that may have merit.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1847 | |publication year=1847 | ||
|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_249.xml |
|genus=Cyperus | |genus=Cyperus | ||
|subgenus=Cyperus subg. Pycreus | |subgenus=Cyperus subg. Pycreus | ||
Revision as of 17:06, 18 September 2019
Culms and leaves with Kranz (chlorocyperoid) anatomy. Inflorescences: spikes; rachilla persistent, wingless or nearly so. Spikelets borne in loosely spicate to ± digitate clusters; floral scales deciduous, 2-keeled or folded. Flowers: stamens (1–)2–3; pistils 2; stigmas 2. Achenes biconvex or ± cylindric, laterally compressed, edge borne toward rachilla.
Discussion
Species ca. 100 (11 in the flora).
Laterally compressed, biconvex achenes, a feature not occurring elsewhere in the family, distinguish Cyperus subg. Pycreus. The taxon has been treated as a genus in Flora Mesoamericana (C. D. Adams 1994), an idea that may have merit.
Selected References
None.