Hypericum microsepalum

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Hypericum microsepalum
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Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida – Dicotyledons
Order: Theales
Family: Clusiaceae ⁄ Guttiferae
Genus: Hypericum
Species: H. microsepalum
Binomial name
Hypericum microsepalum
(Torr. & A. Gray) A. Gray ex S. Watson
HYPE MICR dist.jpg
Natural range of Hypericum microsepalum from USDA NRCS Plants Database.

Description

Hypericum microsepalum, H. brachyphyllum, and H. chapmanii are evergreen, arborescent plants that occur along coastal ecoclines of the Florida panhandle (nomenclature follows Godfrey 1988).[1]

Distribution

Ecology

Hypericum microsepalum and H. brachyphyllum are shrubby in habit, producing multiple shoots from the base, whereas H. chapmanii produces a single stem with thick, flaky bark (Godfrey 1988; Robson 2003).Cite error: Closing </ref> missing for <ref> tag Found in Pine savanna and seepage bog community types of Florida.[2] H. microsepalum is one of the most abundant seepage savanna shrubs that resprout from root crowns.[3]

Phenology

Seed dispersal

All species produce perfect flowers and dehiscent, septicidal capsules containing numerous seeds. Seeds are dispersed by gravity and occasionally by birds (Robson 2003).[4]

Seed bank and germination

All species have life spans 10 years and persistent seed banks.[5]

Fire ecology

“Biennial dormant and growing season fires affected Hypericum microsepalum. Stem densities were eight times greater after dormant season than growing season fires, but not significantly (P = 0.218). They also changed with time (P < 0.001), and were affected by treatment interactions (P = 0.039). Densities were 5 times greater after a first set of dormant season than growing season fires, but responses were variable (P = 0.258; Fig. 1b). Compared to initial levels, densities were 7 times greater after repeated dormant season fires (P < 0.001). After biennial growing season fires, densities were similar to those initially (P = 0.654). Densities were 13 times greater after repeated dormant season than growing season fires; this difference was not significant (P =0.060).”[3]

Pollination

Use by animals

Diseases and parasites

Conservation and Management

Cultivation and restoration

Photo Gallery

References and notes

  1. citations needed
  2. Drewa, P., W. Platt, et al. (2002). "Community Structure along Elevation Gradients in Headwater Regions of Longleaf Pine Savannas." Plant Ecology 160(1): 61-78.
  3. 3.0 3.1 Drewa, P. B., J. M. Thaxton, et al. (2006). "Responses of root-crown bearing shrubs to differences in fire regimes in Pinus palustris (Longleaf pine) savannas: exploring old-growth questions in second-growth systems." Applied Vegetation Science 9: 27-36.
  4. citations needed
  5. Cite error: Invalid <ref> tag; no text was provided for refs named Crandall 2013