Difference between revisions of "Hypericum ascyron subsp. pyramidatum"
Bull. Nat. Hist. Mus. London, Bot. 31: 58. 2001.
FNA>Volume Importer |
imported>Volume Importer |
||
| (6 intermediate revisions by 2 users not shown) | |||
| Line 10: | Line 10: | ||
|special_status={{Treatment/ID/Special_status | |special_status={{Treatment/ID/Special_status | ||
|code=F | |code=F | ||
| − | |label= | + | |label=Illustrated |
}} | }} | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Hypericum pyramidatum | |name=Hypericum pyramidatum | ||
|authority=Aiton | |authority=Aiton | ||
| + | |rank=species | ||
| + | |publication_title=Hort. Kew. | ||
| + | |publication_place=3: 103. 1789 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=H. ascyroides | |name=H. ascyroides | ||
|authority=Willdenow | |authority=Willdenow | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=H. ascyron var. americanum | |name=H. ascyron var. americanum | ||
|authority=(Spach) Y. Kimura | |authority=(Spach) Y. Kimura | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=variety |
| + | }} {{Treatment/ID/Synonym | ||
|name=H. bartramium | |name=H. bartramium | ||
|authority=Michaux | |authority=Michaux | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=H. macrocarpum | |name=H. macrocarpum | ||
|authority=Spach | |authority=Spach | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=Roscyna americana | |name=Roscyna americana | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Hypericaceae;Hypericum;Hypericum sect. Roscyna;Hypericum ascyron;Hypericum ascyron subsp. pyramidatum | |hierarchy=Hypericaceae;Hypericum;Hypericum sect. Roscyna;Hypericum ascyron;Hypericum ascyron subsp. pyramidatum | ||
| Line 46: | Line 54: | ||
|elevation=0–1500 m | |elevation=0–1500 m | ||
|distribution=Ont.;Que.;Conn.;Ill.;Ind.;Iowa;Kans.;Md.;Mass.;Mich.;Minn.;Mo.;N.Y.;Ohio;Pa.;Vt.;Wis. | |distribution=Ont.;Que.;Conn.;Ill.;Ind.;Iowa;Kans.;Md.;Mass.;Mich.;Minn.;Mo.;N.Y.;Ohio;Pa.;Vt.;Wis. | ||
| − | |discussion=<p>The American populations of Hypericum ascyron sometimes have been treated as distinct from those of eastern Asia, usually as H. pyramidatum. These populations can be distinguished by the combination of relatively broad leaves, acute sepals, and, usually, almost distinct styles; they are better treated as subsp. pyramidatum (see N. K. B. Robson 2001). The scattered American distribution of Hypericum ascyron, which seems to coincide well with earlier Native American campsites, led W. G. Dore (in herbarium notes) to suggest that it was distributed by aborigines for an as yet unknown reason (see J. M. Gillett and N. K. B. Robson 1981).</p> | + | |discussion=<p>The American populations of <i>Hypericum ascyron</i> sometimes have been treated as distinct from those of eastern Asia, usually as H. pyramidatum. These populations can be distinguished by the combination of relatively broad leaves, acute sepals, and, usually, almost distinct styles; they are better treated as <i></i>subsp.<i> pyramidatum</i> (see N. K. B. Robson 2001). The scattered American distribution of <i>Hypericum ascyron</i>, which seems to coincide well with earlier Native American campsites, led W. G. Dore (in herbarium notes) to suggest that it was distributed by aborigines for an as yet unknown reason (see J. M. Gillett and N. K. B. Robson 1981).</p> |
|tables= | |tables= | ||
|references= | |references= | ||
| Line 55: | Line 63: | ||
-->{{#Taxon: | -->{{#Taxon: | ||
name=Hypericum ascyron subsp. pyramidatum | name=Hypericum ascyron subsp. pyramidatum | ||
| − | |||
|authority=(Aiton) N. Robson | |authority=(Aiton) N. Robson | ||
|rank=subspecies | |rank=subspecies | ||
| Line 69: | Line 76: | ||
|publication title=Bull. Nat. Hist. Mus. London, Bot. | |publication title=Bull. Nat. Hist. Mus. London, Bot. | ||
|publication year=2001 | |publication year=2001 | ||
| − | |special status= | + | |special status=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V6/V6_169.xml |
|genus=Hypericum | |genus=Hypericum | ||
|section=Hypericum sect. Roscyna | |section=Hypericum sect. Roscyna | ||
Latest revision as of 22:19, 5 November 2020
Herbs erect, branched from base and often with strict, narrowly ascending branches, 5–20 dm. Stems: internodes 4-lined at first, then 4-angled. Leaves spreading, sessile, amplexicaul; blade ovate-lanceolate to lanceolate or oblong, 40–85 × 18–37 mm on main stem, smaller distally and on branches, base rounded to cordate, margins plane, apex usually acute to apiculate, sometimes obtuse, midrib with 4–7 pairs of branches, tertiary veins densely reticulate toward margins. Inflorescences cylindric to narrowly pyramidal, 1–35-flowered. Flowers: sepals ovate to lanceolate or oblong-elliptic, subequal or equal, 8–13 × 4–8 mm, apex acute to acuminate; petals golden yellow, sometimes red-tinged, narrowly obovate to oblanceolate-falcate, 25–40 mm; styles (4–)5, 3–7 mm. Capsules ovoid, 12–20(–30) × 10–13 mm. Seeds 1.5 mm, narrowly winged; testa shallowly linear-reticulate.
Phenology: Flowering summer (Jun–Aug).
Habitat: Stream sides, roadside ditches, fens, damp meadows
Elevation: 0–1500 m
Distribution
Ont., Que., Conn., Ill., Ind., Iowa, Kans., Md., Mass., Mich., Minn., Mo., N.Y., Ohio, Pa., Vt., Wis.
Discussion
The American populations of Hypericum ascyron sometimes have been treated as distinct from those of eastern Asia, usually as H. pyramidatum. These populations can be distinguished by the combination of relatively broad leaves, acute sepals, and, usually, almost distinct styles; they are better treated as subsp. pyramidatum (see N. K. B. Robson 2001). The scattered American distribution of Hypericum ascyron, which seems to coincide well with earlier Native American campsites, led W. G. Dore (in herbarium notes) to suggest that it was distributed by aborigines for an as yet unknown reason (see J. M. Gillett and N. K. B. Robson 1981).
Selected References
None.