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  A. titanum at Berkeley
From: "Weaver, Bill" <bill.weaver at hp.com> on 2007.07.20 at 07:29:12(15986)
I just received the attached photo from the UC
Botanical Garden at Berkeley. It is currently
36.5 inches in height and is sure looking like
it is going to be a bloom.

Is there any way to estimate when this will
actually open?

Thank you for any information

Bill Weaver

From: "Julius Boos" <ju-bo at msn.com> on 2007.07.20 at 21:42:59(15989)
Reply-To : Discussion of aroids
Sent : Friday, July 20, 2007 7:29 AM
To : Discussion of aroids
Subject : [Aroid-l] A. titanum at Berkeley

Attachment : Titanarum7-19-07JW(4)PS.jpg (0.27 MB)

Dear Bill,

This is almost certainly a flower bud, and may be at LEAST a couple of weeks
away from opening! Perhaps others on this list who were closely involved
w/ other recent bloomings of this species may be able to take a look at the
stage of the bud`s development and give a more accurate prediction!
Thanks for sharing!


From: "Brian O'Brien" <bobrien at gustavus.edu> on 2007.07.21 at 20:43:47(15992)
As one of those persons to whom Julius refers with regard to
recent flowerings of A. titanum - yes, I agree that it looks like an
inflorescence. The bulging shape is an indicator; the leaf shoots
are more conical. Based on our plant, I would say, very roughly,
that it has about three weeks to go. For a better feel as to what
the different stages look like, see my collection of aroid photos at my
Flickr site, which contains numerous dated photos of the progress of the
growth of our plant's inflorescence (the inflorescence began opening in
late afternoon of May 12, and close to fully open (85%) about six hours
later. Here's the link:


From: "Brian O'Brien" <bobrien at gustavus.edu> on 2007.07.22 at 07:25:58(15994)
I should add (and should have included earlier) links for
the flowerings of A. titanum at the Botanical Garden of Bonn. The
posted graphs of the rate of growth of the inflorescence should be
particularly useful for prediction of the time of flowering. Here's
the link:


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