Difference between revisions of "Hypericum adpressum"
Comp. Fl. Philadelph. 2: 15. 1818.
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|name=Brathydium fastigiatum | |name=Brathydium fastigiatum | ||
|authority=(Elliott) K. Koch | |authority=(Elliott) K. Koch | ||
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}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Hypericum adpressum var. fastigiatum | |name=Hypericum adpressum var. fastigiatum | ||
|authority=(Elliott) Torrey & A. Gray | |authority=(Elliott) Torrey & A. Gray | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=H. adpressum var. spongiosum | |name=H. adpressum var. spongiosum | ||
|authority=B. L. Robinson | |authority=B. L. Robinson | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=H. bonaparteae | |name=H. bonaparteae | ||
|authority=(W. P. C. Barton) K. Koch | |authority=(W. P. C. Barton) K. Koch | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=H. fastigiatum | |name=H. fastigiatum | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Myriandra adpressa | |name=Myriandra adpressa | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Hypericaceae;Hypericum;Hypericum sect. Myriandra;Hypericum adpressum | |hierarchy=Hypericaceae;Hypericum;Hypericum sect. Myriandra;Hypericum adpressum | ||
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name=Hypericum adpressum | name=Hypericum adpressum | ||
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|authority=W. P. C. Barton | |authority=W. P. C. Barton | ||
|rank=species | |rank=species | ||
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|publication year=1818 | |publication year=1818 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |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/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V6/V6_136.xml |
|genus=Hypericum | |genus=Hypericum | ||
|section=Hypericum sect. Myriandra | |section=Hypericum sect. Myriandra | ||
Revision as of 22:02, 16 December 2019
Inflorescences rounded-corymbiform, 13–60-flowered, narrowly branched, without subsidiary branches. Flowers 10–15 mm diam.; sepals persistent, not enclosing capsule, 5, ovate-lanceolate to lanceolate, subequal, (2–)4–7 × 1–1.5 mm; petals 5, bright yellow, obovate-oblanceolate, 6–8 mm; stamens persistent, 60–80; ovary 3-merous, placentation parietal. Capsules ellipsoid to ovoid-ellipsoid, 3.5–6 × 2–4 mm. Seeds slightly carinate, 0.6–0.7 mm; testa scalariform. 2n = 18.
Phenology: Flowering late summer (Jul–Sep).
Habitat: Marshes, pond margins, wet ditches, bogs, coastal plain
Elevation: 0–1000 m
Distribution
Conn., Del., Ga., Ill., Ind., Md., Mass., Mo., N.J., N.Y., N.C., Pa., R.I., S.C., Tenn., Va., W.Va.
Discussion
Hypericum adpressum is more herbaceous and rhizomatous than H. sphaerocarpum and has narrower capsules and smaller seeds.
The plants with aerenchymatous tissue in the rhizome (var. spongiosum) are not taxonomically distinct but merely the result of a habitat-induced modification.
Selected References
None.