Are Snowdrops Thermogenic?

Here is a link to a different article on the subject:
http://4e.plantphys.net/article.php?ch=&id=126. There is quite a lot of
research, but I can't find anything about snowdrops.

Carolyn Walker
Carolyn's Shade Gardens
http://www.carolynsshadegardens.com/
carolynsshadegardens@verizon.net
325 S Roberts Rd
Bryn Mawr, PA 19010

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Today's Topics:

1. Re: Puya (lou jost)
2. Lachenalia pic needs ID (Justin Smith)
3. Re: Lachenalia pic needs ID (AW)
4. Re: Lachenalia pic needs ID (Don Journet)
5. Lachenalia (arnold140@verizon.net)
6. Re: Are snowdrops thermogenic? (Mary Sue Ittner)
7. Re: Eastern Cape Trip (Mary Sue Ittner)
8. Re: Eastern Cape Trip (Susan B)

----------------------------------------------------------------------

Message: 1
Date: Mon, 7 Feb 2011 13:12:18 -0800 (PST)
From: lou jost <loujost@yahoo.com>
To: pbs@lists.ibiblio.org
Subject: Re: [pbs] Puya
Message-ID: <823892.59697.qm@web120513.mail.ne1.yahoo.com>
Content-Type: text/plain; charset=us-ascii

Hi Kathleen,
Sphagnum bogs are my favorite US habitat as well (Maybe we shouldn't
admit this on a geophyte forum). This particular alpine bog surrounds a
little pond, and several acres of it are covered with giant Puyas whose
branched flower stalks form a little forest more than ten feet tall. Every
time I visit, the place is misty, and the network of flower stalks just sort
of fades off into the white fog.
LOu

------------------------------

Message: 2
Date: Mon, 7 Feb 2011 16:40:56 -0600
From: Justin Smith <oothal@hotmail.com>
To: <pbs@lists.ibiblio.org>
Subject: [pbs] Lachenalia pic needs ID
Message-ID: <SNT112-W22D08C3C1ADEED2E59EF95DEEB0@phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"

Hi All,

I have been very busy since last fall but I have finally managed a spare
moment to ask for a bit-o-help with an ID for this pic. The pic was taken
today.

http://www.flickr.com/photos/oothal/5426196602/

The seed were sold to me as Lachenalia barkeriana. After reading a few
descriptions of L. barkeriana mine does not quite fit. Mine has a single
wide leaf and I have read that it is suppose to have several narrow leaves.

So anyone want to give a shot at an it's ID?

Thanks for your help.

Justin
Woodville, TX 8b/9a

------------------------------

Message: 3
Date: Mon, 7 Feb 2011 19:54:17 -0800
From: "AW" <awilson@avonia.com>
To: "'Pacific Bulb Society'" <pbs@lists.ibiblio.org>
Subject: Re: [pbs] Lachenalia pic needs ID
Message-ID: <E718B4BE203240579E880FE084DEAFC3@Desktop>
Content-Type: text/plain; charset="us-ascii"

Dear Justin,

I can confirm your contention that it is NOT Lachenalia barkeriana. That
species is so unlike any other lachenalia that it cannot be mistaken. In
fact, acccording to Graham Duncan, it is sometimes considered a Polyxena.

As an ID I might suggest L. bolusii, but I am not certain about that.

Andrew
San Diego

I have been very busy since last fall but I have finally managed a spare
moment to ask for a bit-o-help with an ID for this pic. The pic was taken
today.

http://www.flickr.com/photos/oothal/5426196602/

So anyone want to give a shot at an it's ID?

Thanks for your help.

Justin
Woodville, TX 8b/9a

------------------------------

Message: 4
Date: Wed, 09 Feb 2011 00:39:50 +1100
From: Don Journet <donjournet@netspace.net.au>
To: Pacific Bulb Society <pbs@lists.ibiblio.org>
Subject: Re: [pbs] Lachenalia pic needs ID
Message-ID: <4D5147A6.7060808@netspace.net.au>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Hello Justin,
You are absolutely right that it is not L.
barkeriana. I would suggest that it is closest to L. longibracteata
which is somewhat variable but is characterised by the bracts that can
be clearly seen in the photograph. The colouring and shape of the
flowers is close and probably in the range of L. longibracteata but I am
not sure about only one leaf I would have expected two. Hope this gives
you a starting point at least.

Regards
Don Journet
Victoria, Australia

Hi All,

I have been very busy since last fall but I have finally managed a spare

moment to ask for a bit-o-help with an ID for this pic. The pic was taken
today.

http://www.flickr.com/photos/oothal/5426196602/

The seed were sold to me as Lachenalia barkeriana. After reading a few

descriptions of L. barkeriana mine does not quite fit. Mine has a single
wide leaf and I have read that it is suppose to have several narrow leaves.

So anyone want to give a shot at an it's ID?

Thanks for your help.

Justin
Woodville, TX 8b/9a

------------------------------

Message: 5
Date: Tue, 08 Feb 2011 09:10:12 -0600 (CST)
From: arnold140@verizon.net
To: pbs@lists.ibiblio.org
Subject: [pbs] Lachenalia
Message-ID:
<2027492555.1421549.1297177812236.JavaMail.root@vznit170072>
Content-Type: text/plain; charset=UTF-8

G. Duncan says about Lachenalia longibracteata:

" It has one or two lanceolate, often leathery leaves which my be plain of
spotted above"

Arnold

------------------------------

Message: 6
Date: Tue, 08 Feb 2011 07:17:58 -0800
From: Mary Sue Ittner <msittner@mcn.org>
To: Pacific Bulb Society <pbs@lists.ibiblio.org>
Subject: Re: [pbs] Are snowdrops thermogenic?
Message-ID: <20110208151828.843854C4DF@lists.ibiblio.org>
Content-Type: text/plain; charset="us-ascii"; format=flowed

Hi,

Jon Suzuki's message to our list was held since it included an
attachment, a paper with the title:
The Corpse Flower: A Thermographer's Perspective
Steve Mirowski Steven Kramer Advantage Infrared

It looks like an interesting paper. I found this summary by searching:
The Amorphophallus Titanum, Titan Arum (the Corpse Flower) is a rare
specimen with limited physical access that experiences metabolic heat
generation. These elements make this an enticing investigation to a
thermographer. The Corpse Flower is a unique life form with an air of
mystification, and questions remain regarding its thermal functions
and their purpose. The approach this paper takes is strictly from a
thermographer's perspective, utilizing limited interdisciplinary
knowledge of botany and entomology. The results of our investigation
confirm that the plant generates heat both at the tip of the spadix
and inside at the base where the spathe and spadix intersect. The
latter indicates further confirmation of the common hypothesis that
the plant intentionally smells like a rotting flesh in order to
attract bugs for pollination. However, the former is not consistent
with this hypothesis. The tip of the spadix is not the source of the
pollen and is not likely to aid in propagating the stench any
further. However, it may indicate the possibility that some of the
symbiotic insects, in which the plant relies, actually see in
infrared. As can be seen in the thermal images, the tip of the spadix
would act like a visual beacon for locating the source of what the
insect smells. This kind of investigation could lead to a better
understanding of ecological interconnectivity and the potential for
increased opportunities within the realm of scientific investigation.

If someone has a link to the whole paper, please let us know.
Otherwise you could email Jon (PRIVATELY please) and ask for a copy.
I don't think we could add this to the wiki to download from there
unless we had permission from the author. Message from Jon below.

Mary Sue

From: Jon Suzuki <jysuzuki@gmail.com>

Dear Carolyn and Arnold,

I also am interested in thermogenesis. I had a person from an
infrared camera try to detect heat differences on tropical
aroids. The particular ones I had tested did not show heat
differences, but even plants that do produce heat usually produce it
during a particular developmental time period. I was really
interested in the heat produced by lotus blossoms.

Keep on it and I think you might find something interesting.

Someone sent me this on the "corpse flower" an example of the
decaying meat flower per Arnold.

Aloha

Jon

------------------------------

Message: 7
Date: Tue, 08 Feb 2011 08:30:58 -0800
From: Mary Sue Ittner <msittner@mcn.org>
To: Pacific Bulb Society <pbs@lists.ibiblio.org>
Subject: Re: [pbs] Eastern Cape Trip
Message-ID: <20110208163123.E98F24C512@lists.ibiblio.org>
Content-Type: text/plain; charset="us-ascii"; format=flowed

I have added another page for Gaika's Kop.
<http://pacificbulbsociety.org/pbswiki/index.php/…>

It includes another orchid from the summit, Eulophia aculeata. Other
species seen on the summit or on the way there were Hesperantha
pulchra and Moraea elliotii. There was a Kniphofia there that they
decided mostly keyed out to Kniphofia uvaria even though this is
mostly a winter rainfall species.

On the lower part of the mountain we saw a nice form of Eucomis
autumnalis, Hypoxis argentea (also seen higher up), and two more
Kniphofia species, Kniphofia northiae and Kniphofia triangularis. K.
northiae was done flowering, but K. triangularis was quite wonderful.
It is such a striking species.

Mary Sue

------------------------------

Message: 8
Date: Tue, 8 Feb 2011 08:38:49 -0800 (PST)
From: Susan B <honeybunny442@yahoo.com>
To: Pacific Bulb Society <pbs@lists.ibiblio.org>
Subject: Re: [pbs] Eastern Cape Trip
Message-ID: <398833.5225.qm@web56103.mail.re3.yahoo.com>
Content-Type: text/plain; charset=us-ascii

Mary Sue,
Thank you for the photos and travel notes, I've been enjoying them very
much!
What a great trip.
Susan

------------------------------

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