Difference between revisions of "Acanthoscyphus"
Bull. Torrey Bot. Club 25: 53. 1898.
FNA>Volume Importer |
imported>Volume Importer |
||
| (5 intermediate revisions by one other user not shown) | |||
| Line 12: | Line 12: | ||
|name=Oxytheca sect. Acanthoscyphus | |name=Oxytheca sect. Acanthoscyphus | ||
|authority=(Small) Ertter | |authority=(Small) Ertter | ||
| + | |rank=section | ||
}} | }} | ||
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Acanthoscyphus | |hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Acanthoscyphus | ||
| Line 26: | Line 27: | ||
|distribution=s Calif. | |distribution=s Calif. | ||
|discussion=<p>Species 1.</p><!-- | |discussion=<p>Species 1.</p><!-- | ||
| − | --><p>Acanthoscyphus is allied to Eriogonum subg. Ganysma, specifically to E. parishii, E. apiculatum, and their close relatives. It is distinguished from Eriogonum by its awned involucres.</p> | + | --><p><i>Acanthoscyphus</i> is allied to <i>Eriogonum </i>subg.<i> Ganysma</i>, specifically to <i>E. parishii</i>, <i>E. apiculatum</i>, and their close relatives. It is distinguished from <i>Eriogonum</i> by its awned involucres.</p> |
|tables= | |tables= | ||
|references={{Treatment/Reference | |references={{Treatment/Reference | ||
| Line 50: | Line 51: | ||
|publication year=1898 | |publication year=1898 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_911.xml |
|subfamily=Polygonaceae subfam. Eriogonoideae | |subfamily=Polygonaceae subfam. Eriogonoideae | ||
|genus=Acanthoscyphus | |genus=Acanthoscyphus | ||
Latest revision as of 22:15, 5 November 2020
Herbs, annual; taproot slender. Stems arising directly from the root, erect to somewhat spreading, solid, not fistulose or disarticulating into ringlike segments, glabrous, partially glandular. Leaves usually persistent through anthesis, basal, rosulate; petiole indistinct; blade broadly obovate or spatulate to oblong or oblanceolate, margins ciliate-denticulate. Inflorescences terminal, cymose; branches dichotomous, not brittle or disarticulating into segments, round, glabrous except for glandular nodes and proximal 1/2 of internode; bracts 2–3, connate basally, scalelike, triangular to lanceolate or subulate, awned at proximal nodes, glabrous or sparsely glandular. Peduncles erect to deflexed. Involucres 1 per node, not ribbed, tubular, turbinate; teeth 4(–5) or 7–30(–36), 1/2 to completely connate, awn-tipped, glandular distally adaxially. Flowers 3–10(–20) per involucre at any single time during full anthesis; perianth white to rose, occasionally greenish white to cream, broadly campanulate when open, narrowly urceolate when closed, hirsute to strigose and sparsely glandular abaxially; tepals 6, connate 1/4–1/3 their length, monomorphic, entire or rarely irregularly divided apically; stamens 9; filaments basally adnate, glabrous or sparsely pubescent basally; anthers red to maroon, oblong to oval. Achenes usually included, dark brown to deep maroon, not winged, globose-lenticular, glabrous. Seeds: embryo curved. x = 20.
Discussion
Species 1.
Acanthoscyphus is allied to Eriogonum subg. Ganysma, specifically to E. parishii, E. apiculatum, and their close relatives. It is distinguished from Eriogonum by its awned involucres.