Montrichardia Crueg.
  • Bot. Zeitung (Berlin) 12: 25 (1854) 


Notes: , nom. cons. Distribution: Trop. America

General Description

HABIT : robust to sometimes gigantic arborescent evergreen herbs, stem erect, multiplying at base from hypogeal rhizomes, internodes well-developed, smooth or aculeate, ± slender to massive. LEAVES : several, borne in terminal crown. PETIOLE : sheath half as long as petiole or longer, with free apical ligule. BLADE : cordate-sagittate to sagittate, hastate to trifid, rarely trisect, posterior divisions often longer than anterior division; basal ribs well-developed, primary lateral veins pinnate, running into marginal vein, secondary laterals ± parallel-pinnate, higher order venation reticulate. INFLORESCENCE : 1(-2) in each floral sympodium. PEDUNCLE : shorter than petiole. SPATHE : erect, thick, entirely deciduous after anthesis, ± constricted between tube and blade, tube convolute, blade longer than tube, widely gaping at anthesis, ± boat-shaped. SPADIX : erect, subequal to spathe, female zone cylindric, male zone subconoid, contiguous with and much longer than female zone, fertile to apex. FLOWERS : unisexual, perigone absent. MALE FLOWER : 3-6-androus, stamens free, obpyramidal-prismatic, truncate at apex, anthers sessile, connective thick, overtopping thecae, thecae oblong-ellipsoid, dehiscing by longitudinal slit. POLLEN : inaperturate, spherical to subspheroidal, large (mean 94 µm., range 92-96 µm.), exine psilate. FEMALE FLOWER : gynoecia prismatic-cylindric, ovary 1-locular, ovules 1-2, anatropous, funicle short, placenta subbasal to basal, stylar region prismatic, thick, excavated and rugulose at apex, stigma small, on low central boss, irregular to elliptic or roundish. BERRIES : free, large, subcylindric, somewhat compressed, pericarp spongiose, at apex excavated and radiately furrowed, 1-seeded. SEED : large, obovoid to ellipsoid, testa smooth or rough, brown, embryo large, endosperm absent.

Diagnostic Description

Robust to gigantic, rhizomatous helophytes forming large colonies along rivers with erect aerial stems and well-developed internodes sometimes bearing prickles; leaves borne in apical crown; leaf blade cordate-sagittate to hastate (rarely trisect), fine venation reticulate; spadix fertile to apex, male and female zones contiguous; flowers unisexual, perigone absent; stamens free; berries furrowed and excavated at apex, seeds large, brown.

Habitat

Tropical humid forest; helophytes in tranquil freshwater habitats, forming dense, often extensive stands along river margins.

Distribution

Trop. America.

Distribution Map

 
  • Native distribution
Specimens
Found in
  • Southern America Brazil Brazil North
  • Brazil Northeast
  • Brazil Southeast
  • Caribbean Leeward Is.
  • Trinidad-Tobago
  • Windward Is.
  • Central America Belize
  • Costa Rica
  • Guatemala
  • Honduras
  • Nicaragua
  • Panamá
  • Northern South America French Guiana
  • Guyana
  • Suriname
  • Venezuela
  • Western South America Colombia
  • Ecuador
  • Peru
Not found in
  • Southern America Caribbean Puerto Rico

  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
Global Biodiversity Information Facility
http://data.gbif.org
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eMonocot
http://e-monocot.org
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
  • C 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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