[Plant-education] unusual oak

[Perry, James]

Scott, check out http://www.ca.uky.edu/ENTOMOLOGY/entfacts/ef408.asp and
http://images.google.com/images?sourceid=navclient&rlz=1T4RNTN_enUS344US
344&q=picture+of+oak+galls&um=1&ie=UTF-8&ei=HVgLS7OvHIv-M57siMsC&sa=X&oi
=image_result_group&ct=title&resnum=1&ved=0CBAQsAQwAA . Probably gouty
oak galls?

Jim 

James W. Perry, Ph.D.
Campus Executive Officer and Dean
University of Wisconsin-Fox Valley
1478 Midway Road
Menasha, WI 54952
(920) 832-2610 (voice)
(920) 832-2674 (fax)
james.perry from uwc.edu
www.uwfox.uwc.edu
http://uwfox.blogspot.com


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-----Original Message-----
From: plant-ed-bounces from oat.bio.indiana.edu
[mailto:plant-ed-bounces from oat.bio.indiana.edu] On Behalf Of Scott Shumway
Sent: Monday, November 23, 2009 8:07 PM
To: plant-ed from magpie.bio.indiana.edu
Subject: [Plant-education] unusual oak

Today I saw an oak tree (Pin Oak, I think) that appeared from a distance

to be covered with round fruits.  This was in MA, so there weren't any 
leaves on the tree and the "fruits" (NOT acorns) showed up very well.  
Upon closer inspection, they appeared to be galls.  But then I noticed 
that they were woody and covered with buds.  These structures were the 
size of golf balls and numbered in the hundreds, if not thousands.

What are they?  Witches brooms?

-- 
Scott Shumway
Professor of Biology
Wheaton College
Norton, MA 02766
http://www.wheatoncollege.edu/Faculty/ScottWShumway.html
sshumway from wheatonma.edu

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