Peltandra Raf.
  • J. Phys. Chim. Hist. Nat. Élément 89: 102 (1819) 


Notes: , nom. cons. Distribution: E. Canada to C. & E. U.S.A., Cuba

General Description

HABIT : seasonally dormant herbs, rhizome short, erect, hypogeal, sometimes branching. LEAVES : several. PETIOLE : sheath rather long, up to at least half as long as petiole. BLADE : lanceolate to broadly ovate, sagittate, hastate or rarely cordate; basal ribs well-developed, primary lateral veins pinnate, sometimes only weakly differentiated, forming submarginal collective vein, 2 or more distinct marginal veins also present, secondary laterals parallel-pinnate, higher order venation parallel-pinnate near midrib, becoming reticulate towards margin. INFLORESCENCE : 1-2 in each floral sympodium. PEDUNCLE : subequal to or shorter than petiole, erect at anthesis, bent downwards in fruit. SPATHE : constricted between tube and blade, tube convolute, externally green to yellow-green, ellipsoid, persistent, blade green to white, erect, widely expanded (P. sagittifolia) or only gaping (P. virginica), later deciduous. SPADIX : cylindric, female zone shorter than male, either contiguous with male zone or with a short zone of sterile flowers in between, male zone with short terminal appendix of sterile flowers. FLOWERS : unisexual, perigone absent. MALE FLOWER : synandrium 4-5-androus, truncate, often slightly excavated centrally, anthers lateral, thecae adjacent, oblong-ellipsoid, dehiscing by apical pore. POLLEN : inaperturate, ellipsoid or spherical, medium-sized (mean 33 µm., range 28-37 µm.), exine spinose (P. virginica) or almost psilate (P. sagittifolia). FEMALE FLOWER : gynoecium closely surrounded by 3-5 free staminodes or some staminodes free and others connate or all connate into truncate-urceolate synandrodium, ovary ovoid, 1-locular, ovules 1-few, hemiorthotropous, funicle short, placenta parietal to basal, style shortly attenuate, narrower than ovary, stigma discoid-hemispheric. BERRY : obconical to irregularly subglobose, green to blackish-purple (P. virginica) or red (P. sagittifolia), 1-3-seeded, with mucilaginous contents. SEED : large, ovoid to subglobose, laterally flattened, embryo large, plumule well-developed with 6-7 leaf primordia, endosperm vestigial or absent.

Diagnostic Description

Seasonally dormant helophytes with short, hypogeal rthizome; leaf blade sagittate, hastate or rarely cordate, fine venation parallel-pinnate becoming reticulate near margin, submarginal collective vein and marginal veins present; peduncle bent downwards in fruit; spathe with constriction, after flowering blade withering, tube persistent; flowers unisexual, perigone absent; male flower a truncate synandrium . Differs from Typhonodorum in lacking pseudostem of petiole sheaths, staminodes of female flowers often partly or completely connate into a cup-like synandrode and eastern North American range.

Habitat

Temperate wetland habitats; helophytes, marshes, along watercourses, brackish water.

Distribution

E. Canada, C. & E. U.S.A.

Distribution Map

 
  • Native distribution
  • Introduced distribution
Found in
  • Northern America Eastern Canada Ontario
  • Québec
  • North-Central U.S.A. Illinois
  • Iowa
  • Kansas
  • Minnesota
  • Missouri
  • Oklahoma
  • Wisconsin
  • Northeastern U.S.A. Connecticut
  • Indiana
  • Maine
  • Masachusettes
  • Michigan
  • New Hampshire
  • New Jersey
  • New York
  • Ohio
  • Pennsylvania
  • Rhode I.
  • Vermont
  • West Virginia
  • South-Central U.S.A. Texas
  • Southeastern U.S.A. Alabama
  • Arkansas
  • Delaware
  • District of Columbia
  • Florida
  • Georgia
  • Kentucky
  • Louisiana
  • Maryland
  • Mississippi
  • North Carolina
  • South Carolina
  • Tennessee
  • Virginia
  • Southern America Caribbean Cuba
Introduced into
  • Northern America Northwestern U.S.A. Oregon
  • Southwestern U.S.A. California

  Bibliography

  • 1 Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • 2 Gardens, K.""Royal Bot World Checklist of Selected Plant Families. (2008).
  • 3 Mayo, S.J., Bogner, J. & Boyce, P.C. The Genera of Araceae. (Royal Botanic Gardens Kew: 1997).

 Information From

CATE Araceae
http://araceae.e-monocot.org
Haigh, A., Clark, B., Reynolds, L., Mayo, S.J., Croat, T.B., Lay, L., Boyce, P.C., Mora, M., Bogner, J., Sellaro, M., Wong, S.Y., Kostelac, C., Grayum, M.H., Keating, R.C., Ruckert, G., Naylor, M.F. and Hay, A., CATE Araceae, 14 Dec 2011 . 17 Dec 2011.
  • A All Rights Reserved
eMonocot
http://e-monocot.org
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
  • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
World Checklist of Selected Plant Families
http://apps.kew.org/wcsp/
WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/ Retrieved 2011 onwards
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