Difference between revisions of "Paronychia chartacea"
Rhodora 38: 418. 1936.
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|distribution=Fla.. | |distribution=Fla.. | ||
|discussion=<p>Varieties 2 (2 in the flora).</p><!-- | |discussion=<p>Varieties 2 (2 in the flora).</p><!-- | ||
| − | --><p>The occasional occurrence of 3- or 4-merous flowers is unique to Paronychia chartacea among North American species of the genus.</p><!-- | + | --><p>The occasional occurrence of 3- or 4-merous flowers is unique to <i>Paronychia chartacea</i> among North American species of the genus.</p><!-- |
| − | --><p>Paronychia chartacea is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p><!-- | + | --><p><i>Paronychia chartacea</i> is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p><!-- |
--><p>The following key is adapted from L. C. Anderson (1991).</p> | --><p>The following key is adapted from L. C. Anderson (1991).</p> | ||
|tables= | |tables= | ||
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|publication year=1936 | |publication year=1936 | ||
|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/V5/V5_58.xml |
|subfamily=Caryophyllaceae subfam. Paronychioideae | |subfamily=Caryophyllaceae subfam. Paronychioideae | ||
|genus=Paronychia | |genus=Paronychia | ||
Revision as of 17:39, 18 September 2019
Plants annual or short-lived perennial, often densely matted; taproot filiform to slender. Stems prostrate to ascending, dichotomously branched, 5–20 cm, often retrorsely pubescent on 1 side. Leaves: stipules ovate-lanceolate, 1–1.5 mm, apex obtuse to acuminate, fimbriate; blade oblong to triangular-ovate, 1.5–6 × 0.5–1.5 mm, leathery, apex acute to obtuse, glabrous. Cymes terminal, 7–25+-flowered, much-branched and very profusely developed along all branches, 1.5–20 mm wide. Flowers 5-merous, occasionally 3- or 4-merous, obconic to short-campanulate, with gradually expanded hypanthium and calyx widening distally, 0.5–0.8 mm, pubescent proximally with straight to hooked hairs; sepals brown-purple, white to greenish at apex, sometimes proximally, veins absent, ± oblong, 0.5–0.7 mm, leathery to rigid, margins whitish to translucent, 0.1–0.2 mm wide, scarious, apex terminated by crest or mucro, hood broadly rounded, mucro rounded-triangular, ca. 0.1 mm, glabrous; staminodes absent or rudimentary; styles 2(–3), ca. 0.3 mm. Utricles ovoid or ellipsoid to subglobose, 0.4–0.5 mm, smooth, glabrous.
Discussion
Varieties 2 (2 in the flora).
The occasional occurrence of 3- or 4-merous flowers is unique to Paronychia chartacea among North American species of the genus.
Paronychia chartacea is in the Center for Plant Conservation’s National Collection of Endangered Plants.
The following key is adapted from L. C. Anderson (1991).
Selected References
None.
Key
| 1 | Caudex (stem base) (1-)1.5-3.5(-4.2) mm; leaf blades 0.5-1.5 mm wide; flower clusters 3-20 mm wide; c peninsular Florida | Paronychia chartacea var. chartacea |
| 1 | Caudex (stem base) (0.4-)0.7-1(-1.5) mm; leaf blades 1.2-3 mm wide; flower clusters 1.5-4 mm wide; Florida panhandle | Paronychia chartacea var. minima |