Found a few interesting seed pods on a hike yesterday (30 May 09) in Southern Vermont. They were firm, very lightweight, and about an inch diameter. I could not find any attached to a plant, so have no flower or leaves to add to the description. I broke one open and found a spiky odd bit inside. None of the three forestry folks I have asked knew what they were from. Can anyone here help solve my mystery? Here's hoping!
Actually a gall. They had me stumped last year trying to find their tree...this year I'm finding them on Oak. I've not noticed them doing any damage or harm luckily.
What causes these to form, C.W.? Are they of insect (or maybe extraterrestrial) origin? Do they form on leaves and then drop off? If so, why? ---Again, I am amazed at nature's infinite variety. a bowl of these would be a great centerpiece on a table in an episode of Star Trek.
Oak Apple Galls
"Insects are the major gall makers. Aphids, mites, wasps, and flies cause the majority of plant galls.
In certain cases, as with cedar apple rust gall, a fungus is the primary cause." http://forestry.about.com/od/foresti..._com_ogall.htm
What causes these to form, C.W.? Are they of insect (or maybe extraterrestrial) origin? Do they form on leaves and then drop off? If so, why? ---Again, I am amazed at nature's infinite variety. a bowl of these would be a great centerpiece on a table in an episode of Star Trek.
I have to agree that nature is just infinitely wonderous in all it's proportions. Wether it be an insect forming these galls (this is a wasp)...or the actual BEAUTY of them. They're an incredible irridescent green....that turn a reddish pink with age (if the wasp larva dies) or grow larger till they're mistaken for actual apples. The dots on them go purple (with the death) or fade with the growth. Even once they've fallen off the leaves/stems of their hosts they dry up and still maintain a beauty to them.
I've collected many that have dried in their larger sizes...a smooth skinned brown 'golf ball'...and have even used in crafts. :o)
