[Taxacom] [HERBARIA] Fruit geotropism? Cyperaceae!

[Jeremy Bruhl]

Also in Cyperaceae in Eleochars casespitosissima, as follows. I can send a
PDF; here is the abstract.
Cheers
Jeremy

http://www.publish.csiro.au/paper/BT9940441.htm

Amphicarpy in the Cyperaceae, With Novel Variation in the Wetland Sedge
Eleocharis caespitosissima Baker

JJ Bruhl
Abstract

Amphicarpy, the heterocarpic production of serial and basal fruits, occurs
in the Cyperaceae in species of the primarily mesophytic genera
Bulbostylis and Trianoptiles and in species of the helophytic genera
Eleocharis and Schoenoplectus. There is a variety of breeding systems and
growth forms across these amphicarpic species. Eleocharis caespitosissima
is amphicarpic, with basal fruits buried by positively geotropic culms.
The seeds of basal fruits in this species may arise asexually. The
selective pressures likely to be important in the development of
amphicarpy in the Cyperaceae are discussed.

Australian Journal of Botany 42(4) 441 - 448

Full text doi:10.1071/BT9940441

© CSIRO 1994

==================================
Jeremy J. Bruhl
Associate Professor, Botany
Director, NCW Beadle Herbarium (NE)
     CITES Australian Reg. No. AU 015

Mail address:
Botany, University of New England,
Armidale, NSW 2351 Australia

jbruhl at une.edu.au
Voice: +61 2 6773 2429
Fax: +61 2 6773 3283

> Dear Lena,
>
> Cyclamen spp.
> Cymbalaria muralis
> Cucumis humifructus (but some reports say the aardvarks take the fruits
> to their burrows), etc.
>
> Van der Pijl, L. 1982. Principles of dispersal in higher plants, ed. 3:
> 94, gives refrences to about 30 species falling into seven types (Still
> a gold mine of information!). Since then no dounbt more have been added.
> Hope this helps,
>
> JeF
>
> -----Original Message-----
> From: herbaria-bounces at nacse.org [mailto:herbaria-bounces at nacse.org] On
> Behalf Of Lena Struwe
> Sent: Friday, October 02, 2009 3:12 AM
> To: herbaria at nacse.org
> Subject: [HERBARIA] Fruit geotropism?
>
> Hi,
>
> We have a new species that shows fruit geotropism (pushing the once
> erect fruit into the soil) and I am looking for other examples for this
> in the plant kingdom.  So far, we have only found Arachis (peanuts), the
> obvious one, but there must be other species that show this too, right?
>
> Any suggestions?  Thanks in advance, and you can respond off-list if you
> like. Best wishes,
>
> Lena
>
> --
> *************************************
> Dr. Lena Struwe
> Associate Professor
> Dept. of Ecology, Evolution, & Natural Resources/ Dept. of Plant Biology
> & Pathology Rutgers University
> 237 Foran Hall, 59 Dudley Road
> New Brunswick, NJ 08901-8551, USA
> phone: (732) 932-9711 ext. 235, fax: (732) 932-9441
> e-mail: struwe at aesop.rutgers.edu
> home page: www.rci.rutgers.edu/~struwe
> GENTIAN RESEARCH NETWORK: http://gentian.rutgers.edu Director, CHRYSLER
> HERBARIUM: http://herbarium.rutgers.edu
>
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