Difference between revisions of "Lasthenia sect. Burrielia"
Univ. Calif. Publ. Bot. 40: 62. 1966.
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| − | --><span class="statement" id="st-undefined" data-properties=""><b>Annuals.</b> Leaves ± entire or toothed (not pinnatifid). <b>Involucres</b> campanulate to cylindric. <b>Phyllaries</b> falling with cypselae, distinct. <b>Receptacles</b> subulate, papillate, glabrous. <b>Ray</b> corollas yellow, laminae 0–1 or 3–5 mm, floral pigments turning deep red in dilute aqueous alkali. <b>Disc</b> corolla lobes 4–5; anther appendages subulate or deltate (with 1–4 wartlike glands in L. debilis); style apices lanceolate and glabrous, or ± deltate with apical tufts of hairs and subapical fringes of shorter hairs. <b>Cypselae</b> to 5 mm; epappose or pappose. <b>2n</b> = 8, 24.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Annuals.</b> Leaves ± entire or toothed (not pinnatifid). <b>Involucres</b> campanulate to cylindric. <b>Phyllaries</b> falling with cypselae, distinct. <b>Receptacles</b> subulate, papillate, glabrous. <b>Ray</b> corollas yellow, laminae 0–1 or 3–5 mm, floral pigments turning deep red in dilute aqueous alkali. <b>Disc</b> corolla lobes 4–5; anther appendages subulate or deltate (with 1–4 wartlike glands in <i>L. debilis</i>); style apices lanceolate and glabrous, or ± deltate with apical tufts of hairs and subapical fringes of shorter hairs. <b>Cypselae</b> to 5 mm; epappose or pappose. <b>2n</b> = 8, 24.</span><!-- |
-->{{Treatment/Body | -->{{Treatment/Body | ||
|distribution=Calif. | |distribution=Calif. | ||
|discussion=<p>Species 2 (2 in the flora).</p><!-- | |discussion=<p>Species 2 (2 in the flora).</p><!-- | ||
| − | --><p>Within Lasthenia, only members of sects. Amphiachaenia and Burrielia have floral anthochlor pigments that turn red in aqueous alkali. Unlike most lasthenias, the two members of Lasthenia sect. Burrielia are inconspicuous and usually occur in relatively moist, shaded woodland areas. Both have relatively thick stems, relatively broad, obscurely toothed leaves, relatively few rays, phyllaries that fall with cypselae, and similar induments.</p> | + | --><p>Within <i>Lasthenia</i>, only members of sects. Amphiachaenia and Burrielia have floral anthochlor pigments that turn red in aqueous alkali. Unlike most lasthenias, the two members of <i>Lasthenia </i>sect.<i> Burrielia</i> are inconspicuous and usually occur in relatively moist, shaded woodland areas. Both have relatively thick stems, relatively broad, obscurely toothed leaves, relatively few rays, phyllaries that fall with cypselae, and similar induments.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1966 | |publication year=1966 | ||
|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/V19-20-21/V21_849.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Baeriinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Baeriinae | ||
Revision as of 16:37, 18 September 2019
Annuals. Leaves ± entire or toothed (not pinnatifid). Involucres campanulate to cylindric. Phyllaries falling with cypselae, distinct. Receptacles subulate, papillate, glabrous. Ray corollas yellow, laminae 0–1 or 3–5 mm, floral pigments turning deep red in dilute aqueous alkali. Disc corolla lobes 4–5; anther appendages subulate or deltate (with 1–4 wartlike glands in L. debilis); style apices lanceolate and glabrous, or ± deltate with apical tufts of hairs and subapical fringes of shorter hairs. Cypselae to 5 mm; epappose or pappose. 2n = 8, 24.
Discussion
Species 2 (2 in the flora).
Within Lasthenia, only members of sects. Amphiachaenia and Burrielia have floral anthochlor pigments that turn red in aqueous alkali. Unlike most lasthenias, the two members of Lasthenia sect. Burrielia are inconspicuous and usually occur in relatively moist, shaded woodland areas. Both have relatively thick stems, relatively broad, obscurely toothed leaves, relatively few rays, phyllaries that fall with cypselae, and similar induments.
Selected References
None.
Lower Taxa
Key
| 1 | Ray laminae 3–5 mm; disc corolla lobes 5; anther appendages deltate | Lasthenia debilis |
| 1 | Ray laminae 0–1 mm; disc corolla lobes 4(–5); anther appendages subulate | Lasthenia microglossa |