Difference between revisions of "Hackelochloa"
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|distribution=Puerto Rico;Miss.;Tex.;La.;Md.;Mo.;Ala.;Pacific Islands (Hawaii);Ga.;Ariz.;Fla.;N.Mex. | |distribution=Puerto Rico;Miss.;Tex.;La.;Md.;Mo.;Ala.;Pacific Islands (Hawaii);Ga.;Ariz.;Fla.;N.Mex. | ||
| − | |discussion=<p>Hackelochloa is treated here as a monospecific genus that is widely distributed in warm regions of the world, often as a weed. Veldkamp et al. (1986) combined it with Coelorachis Brongn., Heteropholis C.E. Hubb., Ratzeburgia Kunth, and Rottboellia formosa R. Br. in Mnesithea Kunth. The traditional treatment for Hackelochloa is retained here.</p> | + | |discussion=<p><i>Hackelochloa</i> is treated here as a monospecific genus that is widely distributed in warm regions of the world, often as a weed. Veldkamp et al. (1986) combined it with <i>Coelorachis</i> Brongn., Heteropholis C.E. Hubb., Ratzeburgia Kunth, and <i>Rottboellia</i> formosa R. Br. in Mnesithea Kunth. The traditional treatment for <i>Hackelochloa</i> is retained here.</p> |
|tables= | |tables= | ||
|references={{Treatment/Reference | |references={{Treatment/Reference | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_1652.xml |
|subfamily=Poaceae subfam. Panicoideae | |subfamily=Poaceae subfam. Panicoideae | ||
|tribe=Poaceae tribe Andropogoneae | |tribe=Poaceae tribe Andropogoneae | ||
Latest revision as of 17:58, 11 May 2021
Plants annual; cespitose. Culms 20-120 cm, erect to decumbent, often rooting at the lower nodes, branching above the bases. Leaves not aromatic; sheaths open; auricles absent; ligules membranous, ciliate. Inflorescences terminal and axillary, solitary, 2-sided rames, these some¬times fascicled and partially enclosed in subtending leaf sheaths at maturity; disarticulation in the rames, beneath the sessile spikelets. Spikelets in heterogamous sessile-pedicellate pairs. Sessile spikelets hemispherical, partly embedded in the rame axes; lower glumes as long as the spikelets, indurate, alveolate, indistinctly 7-11-veined, not keeled, margins involute; upper glumes chartaceous, 3-veined, usually adherent to the rame axes; lower florets sterile; upper florets bisexual; anthers 3. Pedicels adnate to the rame axes, concealed by the sessile spikelets. Pedicellate spikelets as long as or longer than the sessile spikelets, ovate; lower glumes dorsally compressed, 5-9-veined; upper glumes laterally compressed, 5-7-veined; lower florets sterile; upper florets staminate; anthers 3. x = 7 (probably).
Distribution
Puerto Rico, Miss., Tex., La., Md., Mo., Ala., Pacific Islands (Hawaii), Ga., Ariz., Fla., N.Mex.
Discussion
Hackelochloa is treated here as a monospecific genus that is widely distributed in warm regions of the world, often as a weed. Veldkamp et al. (1986) combined it with Coelorachis Brongn., Heteropholis C.E. Hubb., Ratzeburgia Kunth, and Rottboellia formosa R. Br. in Mnesithea Kunth. The traditional treatment for Hackelochloa is retained here.