Holochlamys Engl.
  • Malesia 1: 265 (1883) 


Notes: Distribution: E. Malesia

General Description

Trichosclereids present. HABIT : evergreen herbs, stem short, upright. LEAVES : several. PETIOLE : geniculate apically. BLADE : oblong-elliptic, or ovate to lanceolate, often oblique, apex cuspidate to acuminate, base attenuate to rounded; primary lateral veins pinnate, running into marginal vein, secondary and tertiary laterals parallel-pinnate, higher order venation forming transverse cross connections, often obscured. INFLORESCENCE : solitary. PEDUNCLE : shorter than petiole. SPATHE : white, with distinct midrib and pinnate primary lateral veins, tightly clasping the spadix, marcescent after anthesis, gradually decomposing. SPADIX : sessile to shortly stipitate, cylindric, fertile to apex. FLOWERS : bisexual, perigoniate; tepals 4, fornicate apically and ± truncate, connate into a truncate cup. STAMENS : 4, filaments short, oblong, subequal to anthers, connective slender, thecae oblong, dehiscing by longitudinal slit. POLLEN : inaperturate, ellipsoid, medium-sized (mean 33 µm., range 32-34 µm.), exine striate. GYNOECIUM : subcylindric to ovoid, ovary 1-locular, ovules many, anatropous, funicle long, placenta basal, stylar region cylindric, ± as broad as ovary, stigma oblong or 3-4-lobed. BERRY : 1-few-seeded. SEED : irregularly oblong-ellipsoid, narrowed towards micropyle, testa minutely verrucose or smooth, embryo elongate, endosperm copious.

Diagnostic Description

Evergreen herbs with short erect stem; tissues with numerous, small trichosclereids occuring in bundles; petiole geniculate apically, sheath long; leaf blade simple, oblong to lanceolate, with fine venation parallel-pinnate; flowers bisexual, tepals connate into a truncate cup. Differs from Spathiphyllum in having a spathe which withers, then gradually decomposes after anthesis, connate tepals (Spathiphyllum has free or connate tepals), 1-locular ovary, many ovules and basal placentation.

Habitat

Tropical humid forest; on forest floor, particularly along small streams, on river banks or on rocks.

Distribution

E. Malesia.

Distribution Map

 
  • Native distribution
Specimens
Found in
  • Asia-Tropical Papuasia Bismarck Archipelago
  • New Guinea

  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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