[Taxacom] monoecious/dioecious in plant descriptions
artemisiella89 at hotmail.com
Mon Dec 5 18:50:48 CST 2011
The application of terms should be as given by George H. M. Lawrence's book "Taxonomy of Vascular Plants" and as I always used is as follows
Monoecious: with staminate and pistillate flowers on the same plant, as in corn; a term properly applied to a taxonomic unit, not to flowers
Dioecious: having staminate and pistillate flowers on different plants; a term properly applied to a taxonomic unit, not to flowers
An inflorescence having male and female flowers in it is called Androgynus
Stating that flowers are monoecious or dioecious is misappropriate .....
Hope this clarifies your confusion...
> From: Marc.Sosef at wur.nl
> To: taxacom at mailman.nhm.ku.edu
> Date: Sun, 4 Dec 2011 19:57:58 +0100
> Subject: [Taxacom] monoecious/dioecious in plant descriptions
> Dear colleagues,
> I stumbled upon the question what the right/correct position is of the words monoecious, dioecious, androdioecious, etc. in a plant description. When browsing through quit some species descriptions, in Floras as well as revisions, it seems there is no consensus at all amongst plant taxonomists. The indication may appear roughly in the following places:
> Monoecious. Plants up to 1 m high, ....
> Plants monoecious, up to 1 m high, .....
> ..... Inflorescence monoecious, axillary, ......
> ..... Flowers monoecious, on short pedicels, ......
> To me personally, the first, or maybe second option is most appealing, but I am open for any well-defended other opinion. The question is of course, are these terms an adjective, and if so to the species, the plant(s), the inflorescence, the flowers, or what?
> best regards,
> Marc Sosef
> Netherlands Centre for Biodiversity Naturalis (section NHN), Biosystematics group, Wageningen University
> Gen. Foulkesweg 37, 6703 BL Wageningen, The Netherlands
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