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  taxonomic terms
From: Richard_Berry at doh.state.fl.us on 2000.03.04 at 04:47:54(4135)
I recently encountered two taxonomic terms that are new to me: 
"homotypic synonym" and "heterotypic synonym". I can not find their
definitions in any botanical or horticultural dictionary to which I have
access.  Can someone out there help?  Thanks.

From: "Wilbert Hetterscheid" hetter at worldonline.nl> on 2000.03.04 at 17:06:24(4136)
O.k., it's hardcore time:

Homotypic synonym is a synonym(ous name) of a species based on the SAME type
specimen that was also used previously as the basis for an older (and
priorable) name. Or: at one time somebody came up with a name for a new
species and anchored that name to a type specimen and later a less observant
person, created a new name of that species based on that same type specimen
(gosh, I DO hope you know what type specimens are, or this explanation
doesn't make any sense). So the priorable name and its synonym are based on
the SAME (homo-) type (-typic) specimen.

Heterotypic synonym: a person creates name for a newly described species,
and achors that name to a type specimen. Later another person also
recognises that new species but from another specimen (apparently not having
seen the previous specimen with the older new name on it [we're talking
herbarium specimens or stuffed animal specimens.....]) and so he/she creates
a second name (synonym) for a species but anchored this name to a specimen
that is NOT the same (hetero-) specimen (-type) to which was anchored the
first and priorable name.

For further confusion: a type specimen is a preserved specimen of a species
upon which a taxonomist has based his/her name for that species. Or better:
the one specimen to which the name of a new species is forever anchored.
Blah, blah, blah........

Anyone understanding this needs treatment FAST!!!!!!!! (taxonomists
excepted, because they are already locked up in "herbaria"........which is a
homotypic synonym for "mental institution"....).


From: "George R Stilwell, Jr." grsjr at juno.com> on 2000.03.04 at 20:23:50(4148)

I thought Homotypic synonym was where both plants were the same sex and
Heterotypic synonym was where they were of opposite sex.

It sounds much simpler than your explanation, Wilbert.


From: "Wilbert Hetterscheid" hetter at worldonline.nl> on 2000.03.05 at 14:48:59(4156)

Indeed, your (s)explanation sounds much easier but alas, the terms I tried
to explain are not gender-related.


From: "Peter Boyce" Boyce at pothos.demon.co.uk> on 2000.03.05 at 23:03:40(4160)
Sadly, Ray and all others Wilbert is bang on the button. The terms are all
nomenclaturally based (and you thought systematics was bad enough....)


From: Richard_Berry at doh.state.fl.us on 2000.03.08 at 03:08:34(4177)
Thanks for the definitions of the terms homotypic and heterotypic synonyms.
Actually, I think I do understand what you were saying. I have completed a
course in introductory plant taxonomy, which helped my understanding, to
some degree anyway. Thanks again for taking the time to respond.

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