IAS Aroid Quasi Forum

About Aroid-L
 This is a continuously updated archive of the Aroid-L mailing list in a forum format - not an actual Forum. If you want to post, you will still need to register for the Aroid-L mailing list and send your postings by e-mail for moderation in the normal way.

  Not-so-Simple Peace Lilies
From: SelbyHort at aol.com on 2001.06.14 at 03:17:18(6734)
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 issue
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. Could
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 perhaps
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

From: "Ron Iles" roniles at eircom.net> on 2001.06.14 at 16:22:28(6740)
Dear Donna,

Thank you so very much. Helen Kennedy, bless her, told me about pollination
by the Euglossine Bees, I DO find fragrances of various Spathiphyllum
species vary significantly.

It would be good to have a photostat or buy a copy of the paper or could you

I am especially interested in why there has been such presumably adaptive
radiation of NW species, whereas there are few but apparently very
differently adapted OW species. Maybe this obvious tepal thing is a blind
alley and the true way leads somehere else! ('Sorry for the obtuse pun).
It seems strange to me that with such world wide distribution there can be
so few species. Maybe it is because they all look like, well,
Spathiphyllum. Is this because we are not euglossine and do not target
features which separates one kind from another within a species or section.
How can there be just two or three Asian spp and if so why? WHY only white
or green Spaths? Do the greens in particular have different fragrances for
different bees or are bees interested at all? And why the either reflexed
or hooded spathes? Because I always seem to be in a flight path towards
Spathiphyllum was I re-incarnated from an educationally subnormal
e-bee?!!!!. It might explain my strange need to seek incessantly for
another "different" Peace Lily!!!. I have a very strong predeliction for
very dark green forms with most shy corrugated leaves with toothed margins
No matter how large & attractive the spathe matt leaves are just not, well,

But maybe other people might agree that the shinies are the "best"? The
great variation in morphology of the genus is also most interesting. Plant
size (10cms to 4m), root structure vs wetness of habitat, leaf form and
structure including shininess, thickness, bilateral symmetry etc etc, spathe
open-ness and size. Also the relationship between light preferences and
tolerances (deepest shade10 to fill sun,10,000 fcs) of various forms. So
maybe questions can be answered only by LIVING with them closely, time to
watch & wonder freely but cautiously. Euglossines maybe know a lot we don't
about, (as you write), "Not so Simple Peace Lilies". I feel that
hybridisation and tissue culture, particularly involving widely different &
geographical spp needs to be very careful. Horticulture can mangle millions
of years of evolution in seconds what Botanic Gardens & Collections try to
keep intact. After fifty or more years haphazard hybridisation (and the
genus hybridises very easily) collecting all the cultivars as well I may be
laying down a minefield. It is SO important to know the origin of
definitive "species" and anything else needs numbering with their "names".
This started off as a supplementary botanical labour of love, now major
issues are arising because of you IAS catalysts, Thank goodness I chose a
small(?), simple(?) genus. I forgot that often infinite complexity just
seems elegantly simple. WotavIstarted again? Anyway, thanks to so many
people there should be a meaningful assembly of species and cultivars
growing here by Fall. As it develops I will send photo scans & reports to

Once again, thank you!


From: "Julius Boos" ju-bo at email.msn.com> on 2001.06.17 at 15:30:21(6746)
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).



From: SelbyHort at aol.com on 2001.06.18 at 02:32:55(6749)

Will see what can be done about getting this paper and others online on the
IAS site or elsewhere, but I am certain there are copyright issues so I do
not know if we will be successful.

There's quite a bit of research been done on pollination biology of
Euglossines and orchids. On the IAS web site are some wonderful images and a
aroid pollination study done by Danny Beath. This can be found in the
"pollination" link on left hand menu on the home page.

Donna Atwood

From: "Julius Boos" ju-bo at email.msn.com> on 2001.06.18 at 15:34:42(6750)
Hi Donna!

I would think that there would be some sort of 'disclaimer' like we have in
Aroideana saying that re-printing is permitted with permission of the
publisher, or better as long as credit is given to the author, but am not
sure as to the legalities of this, seems like everyone is on a 'legal' kick
these days. Sad state of affairs.
I will check Danny`s article on the web, but if it is about beetle
pollenation in Dieffenbachia, he published it in a past Aroideana. Good
Must run, so hope that things go well for you in the cold North!



From: "George R Stilwell, Jr." grsjr at juno.com> on 2001.06.18 at 15:35:38(6751)

Let me recommend that you start documents-on-line in .PDF form using
Acrobat software.

From: SelbyHort at aol.com on 2001.06.20 at 06:45:17(6763)

Very good idea re password protecting via Acrobat files. There has been some
discussion lately about some kind of "members only" content on the IAS web
site and this might be a workable solution. Even if we don't go with a
password, the PDF format is very platform independent and works well for


Donna Atwood

From: StellrJ at aol.com on 2001.06.23 at 05:16:34(6849)
In a message dated Mon, 18 Jun 2001 11:35:09 AM Eastern Daylight Time, "Julius Boos" writes:

<< seems like everyone is on a 'legal' kick
these days. Sad state of affairs.

While I applaud your attitude, I am sure that others would find it irresponsibly flippant. These days, anybody can sue anybody, for anything. If I don't like the color of your house, I can find some lawyer who can find some legal basis for my complaint. Clearly, lawyers these days are still too affordable; if they were expensive, fewer people would be hiring them.

Jason Hernandez

From: "Julius Boos" ju-bo at email.msn.com> on 2001.06.24 at 05:26:42(6858)
In a message dated Mon, 18 Jun 2001 11:35:09 AM Eastern Daylight Time,
"Julius Boos" writes:

<< seems like everyone is on a 'legal' kick

From: Betsy Feuerstein ecuador at midsouth.rr.com> on 2001.06.25 at 00:36:41(6867)
You may think lawyers are still too cheap, until you need one and then you will
think you have lost your first and second born and the rest of the clan. You hit
a raw button after it took a fortune to get my freedom.

Note: this is a very old post, so no reply function is available.