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Re: Not-so-Simple Peace Lilies

  • Subject: Re: Not-so-Simple Peace Lilies
  • From: "Julius Boos" <ju-bo@email.msn.com>
  • Date: Sun, 17 Jun 2001 10:30:21 -0500 (CDT)

-----Original Message-----
From: SelbyHort@aol.com <SelbyHort@aol.com>
To: Multiple recipients of list AROID-L <aroid-l@mobot.org>
Date: Wednesday, June 13, 2001 11:17 PM
Subject: Re: Not-so-Simple Peace Lilies

Dear Donna,

I`d love to read it, as I had an interest in Catasetum orchids and their
pollenators years ago in Trinidad (two species found there).



>Ron and Al,

I have that 1976 Selbyana article. The paper is a discussion about
pollination of Spaths in neotropics, particularly by Euglossine bees. Some
species of Spathiphyllum attract only one Euglossine species, others attract
several species. There is a comparison of pollinators visiting Anthurium.
Parallels are drawn between Euglossine pollination in orchids (esp. in
Catasetinae and Gongoreae and others). Scents in all these various flowers
are similar (to our noses), although this paper does not go into fragrance
analysis. In addition, the paper discusses a couple of different theories
about Spathiphyllum sect. Massowia in the old world and seemingly unrelated
species in the neotropics, why did this dispersal occur in the genus? There
is a link to Holochlamys evolution from Spathiphyllum in old world. The
of fused tepals (old world sect. Massowia) vs. free tepals (most neotropical
species) seems to suggest that the old world species are more advanced, yet
is it possible that Spaths originated in the old world and neotropical
members of the genus came later? If so, why do the neotropical species have
free tepals, which are considered less advanced? I have not read lately the
evolutionary discussion in "Genera of the Araceae" to see if any of these
theories have been developed or thrown out, so I need to read it again.
be these hypotheses are all considered bunk now. The paper presents an
interesting speculation that diverse Spathiphyllum species evolved in the
neotropics as adaptation to selective attraction of pollinators via slight
changes in floral scents. Since no Euglossines occur in the old world
this is why there are more spath species in the neotropics?

If there is enough interest in this paper perhaps we should try to get
permission to put it online?

Donna Atwood

In a message dated 06/13/2001 11:03:21 AM Eastern Daylight Time,
roniles@eircom.net writes:

<< | Well, Ron, I didn't have a Spath but after reading your posts I bought
| first one I saw at my local Lowe's.  So far, I haven't enjoyed any
| noticeable scent from it.  I'd be interested in hearing some more on the
| range of scents, colors, sizes, etc. in the genus---the page at aroid.org
| is interesting but somewhat silent on this.  It does note the very unusual
| distribution of the genus which is apparently discussed in a 1976
| article in Selbyana by Williams and Dressler not in the U. Va. library
| How did it come to be in Middle America and New Guinea/Philippines?  I
| go consult Deni's book...
| Clear skies,
| Al >>

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