Difference between revisions of "Mentzelia lindleyi"

Torrey & A. Gray

Fl. N. Amer. 1: 533. 1840.

Common names: Lindley’s blazingstar
IllustratedEndemic
Basionym: Bartonia aurea Lindley Edwards’s Bot. Reg. 22: plate 1831. 1836
Treatment appears in FNA Volume 12. Treatment on page 538. Mentioned on page 498, 531, 532, 536.
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|code=F
|label=Selected by author to be illustrated
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|name=Bartonia aurea
 
|name=Bartonia aurea
 
|authority=Lindley
 
|authority=Lindley
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|rank=species
 
|publication_title=Edwards’s Bot. Reg.
 
|publication_title=Edwards’s Bot. Reg.
 
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name=Mentzelia lindleyi
 
name=Mentzelia lindleyi
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|authority=Torrey & A. Gray
 
|authority=Torrey & A. Gray
 
|rank=species
 
|rank=species
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|publication title=Fl. N. Amer.
 
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|publication year=1840
 
|publication year=1840
|special status=Selected by author to be illustrated;Endemic
+
|special status=Illustrated;Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V12/V12_908.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V12/V12_908.xml
 
|genus=Mentzelia
 
|genus=Mentzelia
 
|section=Mentzelia sect. Trachyphytum
 
|section=Mentzelia sect. Trachyphytum

Revision as of 19:01, 16 December 2019

Plants candelabra-form, 30–70 cm. Basal leaves persisting; petiole present or absent; blade lanceolate to linear, margins usually deeply lobed, lobes rounded. Cauline leaves: petiole absent; blade ovate to lanceolate, to 17 cm, margins deeply to shallowly lobed. Bracts green, ovate to lanceolate, 6.1–14.2 × 3.6–5.1 mm, width 1/3–2/3 length, not concealing capsule, margins 3–7-lobed. Flowers: sepals 9–19 mm; petals orange proximally, yellow distally, obovate, 20–40 × (12–)16–33 mm, apex mucronate; stamens 20+, 12–30 mm, filaments heteromorphic, 5 outermost linear, inner filiform, unlobed; styles 15–24 mm. Capsules clavate, 25–40 × 4–5 mm, axillary curved to 90° at maturity, usually inconspicuously longitudinally ribbed. Seeds 30–40, in 2+ rows distal to mid fruit, tan, dark-mottled or not, irregularly polygonal, surface minutely tessellate under 10× magnification; recurved flap over hilum absent; seed coat cell outer periclinal wall domed, domes on seed edges less than 1/2 as tall as wide at maturity. 2n = 36.


Phenology: Flowering May–Jun.
Habitat: Rocky, open slopes, coastal sage scrub, oak-pine woodlands.
Elevation: 90–1400 m.

Discussion

Naturally occurring populations of Mentzelia lindleyi are limited primarily to the Coast Ranges of the San Francisco Bay area. However, commercial distribution of seeds has resulted in casual alien populations of M. lindleyi throughout the southwestern United States. See 68. M. crocea for discussion of similarities between these species.

Selected References

None.

Lower Taxa

None.