Difference between revisions of "Mentzelia collomiae"
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|elevation=1300–2500 m. | |elevation=1300–2500 m. | ||
|distribution=Ariz. | |distribution=Ariz. | ||
| − | |discussion=<p>Mentzelia collomiae is known only from the San Francisco Volcanic Field of Coconino County.</p> | + | |discussion=<p><i>Mentzelia collomiae</i> is known only from the San Francisco Volcanic Field of Coconino County.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Mentzelia collomiae | name=Mentzelia collomiae | ||
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|authority=Christy | |authority=Christy | ||
|rank=species | |rank=species | ||
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|publication year=1997 | |publication year=1997 | ||
|special status=Endemic;Conservation concern | |special status=Endemic;Conservation concern | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V12/V12_204.xml |
|genus=Mentzelia | |genus=Mentzelia | ||
|section=Mentzelia sect. Bartonia | |section=Mentzelia sect. Bartonia | ||
Latest revision as of 19:14, 5 November 2020
Plants biennial, candelabra-form. Stems solitary, erect, straight; branches distal, distal longest, antrorse, straight; hairy. Leaves: blade 17.8–55.2 × 3–16.6(–26.3) mm, widest intersinus distance 1.4–4.9 mm; proximal oblanceolate, lanceolate, or elliptic, margins dentate to pinnate, teeth or lobes 8–18, perpendicular to leaf axis, 0.6–5.3 mm; distal elliptic to lanceolate, base not clasping, margins dentate to pinnate, teeth or lobes 4–12, perpendicular to leaf axis, 0.7–6.8 mm; abaxial surface with simple grappling-hook, complex grappling-hook, and needlelike trichomes, adaxial surface with simple grappling-hook and needlelike trichomes. Bracts: margins usually entire, occasionally toothed. Flowers: petals golden yellow, 8.5–16.2 × 2.6–6.4 mm, apex acute to rounded, glabrous abaxially; stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, strongly clawed, (6–)9.9–13.8 × (1–)2.4–4.3 mm, without anthers, second whorl with anthers; anthers straight after dehiscence, epidermis smooth; styles (5–)7.8–11 mm. Capsules cylindric, 9.3–16.1 × 3.6–5.9 mm, base tapering, not longitudinally ridged. Seeds: coat anticlinal cell walls sinuous, papillae 51–59 per cell. 2n = 22.
Phenology: Flowering Jun–Aug.
Habitat: Sparsely vegetated level ground, slopes, black (to sometimes reddish) volcanic cinder cone soils.
Elevation: 1300–2500 m.
Discussion
Mentzelia collomiae is known only from the San Francisco Volcanic Field of Coconino County.
Selected References
None.