Difference between revisions of "Boechera ultra-alsa"
Harvard Pap. Bot. 11: 86. 2006.
FNA>Volume Importer |
imported>Volume Importer |
||
| (6 intermediate revisions by 2 users not shown) | |||
| Line 23: | Line 23: | ||
|elevation=ca. 1800 m | |elevation=ca. 1800 m | ||
|distribution=Calif. | |distribution=Calif. | ||
| − | |discussion=<p>Boechera ultra-alsa is known only from the holotype, from Snow Mountain in Lake County. Originally identified as Arabis (Boechera) platysperma, this specimen differs from that taxon by having petioles without obvious cilia, basal leaves with long-stalked (0.1–0.2 versus less than 0.1 mm) trichomes, and fruits edges parallel (not undulate or constricted between the seeds).</p> | + | |discussion=<p><i>Boechera ultra-alsa</i> is known only from the holotype, from Snow Mountain in Lake County. Originally identified as <i>Arabis</i> (<i>Boechera</i>) platysperma, this specimen differs from that taxon by having petioles without obvious cilia, basal leaves with long-stalked (0.1–0.2 versus less than 0.1 mm) trichomes, and fruits edges parallel (not undulate or constricted between the seeds).</p> |
|tables= | |tables= | ||
|references= | |references= | ||
| Line 32: | Line 32: | ||
-->{{#Taxon: | -->{{#Taxon: | ||
name=Boechera ultra-alsa | name=Boechera ultra-alsa | ||
| − | |||
|authority=Windham & Al-Shehbaz | |authority=Windham & Al-Shehbaz | ||
|rank=species | |rank=species | ||
| Line 47: | Line 46: | ||
|publication year=2006 | |publication year=2006 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_600.xml |
|tribe=Brassicaceae tribe Boechereae | |tribe=Brassicaceae tribe Boechereae | ||
|genus=Boechera | |genus=Boechera | ||
Latest revision as of 22:34, 5 November 2020
Perennials; long-lived; reproductive mode unknown; caudex woody. Stems 1 per caudex branch, arising from center of rosette near ground surface, ca. 1 dm, densely pubescent proximally, trichomes stalked, (2 or) 3–6-rayed, 0.2–0.5 mm, glabrate distally. Basal leaves: blade oblanceolate, 4–6 mm wide, margins entire, not ciliate, surfaces moderately pubescent, trichomes long-stalked, 3–6 (or 7)-rayed, 0.2–0.5 mm. Cauline leaves: 2–5, concealing stem proximally; blade auricles absent, surfaces of distalmost leaves pubescent. Racemes 3- or 4-flowered, unbranched. Fruiting pedicels erect-ascending, straight, 4–5 mm, glabrous or sparsely pubescent, trichomes appressed, branched. Flowers not seen. Fruits erect-ascending, sometimes appressed to rachis, not secund, straight, edges parallel, 3–4 cm × ca. 5 mm; valves glabrous; ovules ca. 16 per ovary; style 0.5–0.7 mm. Seeds uniseriate, 5.5–6.5 × 4–4.5 mm; wing continuous, 1–2 mm wide.
Phenology: Flowering Jun–Jul.
Habitat: Rocky soil
Elevation: ca. 1800 m
Discussion
Boechera ultra-alsa is known only from the holotype, from Snow Mountain in Lake County. Originally identified as Arabis (Boechera) platysperma, this specimen differs from that taxon by having petioles without obvious cilia, basal leaves with long-stalked (0.1–0.2 versus less than 0.1 mm) trichomes, and fruits edges parallel (not undulate or constricted between the seeds).
Selected References
None.