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One of the most defining characteristics of Horse Chestnut buds, that lovely shiny rich reddish/brown colour, and the stickyness.
I read somewhere that it was possible to differentiate between the buds of normal Aesculus hippocastrum, and A. x carnea, the red-flowered one (which from memory is a cross between A. hippocastrum and Red Buckeye), the buds of the red one being grayish rather than reddish.
Anyone seen this for themselves? I'll try to find one this afternoon, and will report back!
How to take close-ups with cheap phone and hand-lens:
Field Guides for Budding Botanists:
... is the posh term for sticky.
(There may be some species with glandular hairs which produce non-sticky exudates, but none comes to mind.)
Thank you very much, you are quite correct, as always!
For some reason I tend to think of "glandular" as merely "having glands", and glands are "nodules or growths that secrete substances", not necessarily sticky.
*updates internal software to reflect better definition*
... is probably a more precise, if more informal, description, so there's nothing wrong with describing horse chestnut buds as sticky. (A nearer posh equivalent to sticky would be viscid.)
The presence of gossypol glands is a defining feature of Gossypieae (some other Malvaceae produce gossypol, but don't concentrate it in glands). As gossypol is a toxic anti-herbivore defense, rather than a mechanical one such as mucilage or latex, there's no a priori reason to conclude that the contents of gossypol glands are sticky (and I don't know whether they are).
Some nectaries are formed from glandular hairs; sufficiently dilute nectar isn't sticky. And I guess that all nectaries are by definition glandular.
Always good to learn something new.
Viscid, viscid, yes, much better than merely "sticky".
I assume that is pronounced Vissid, not Viss-kid?
must be the ultimate viscid plant but there is an element of slimy as well as sticky.
... about the pronunciation, to my surprise. All the other words (viscous, viscosity, etc.) derived from the Latin viscum (mistletoe, birdlime) are pronounced with a k, but this one isn't.
[Fide Collins English Dictionary.]
Hooray, I surprised Stewart by being correct!
*does I-surprised-Stewart dance*
Seriously, that's why I asked: I had assumed it to be "vissid" but - having never learned Latin - I was fully prepared to be corrected.
Thank you for taking the time to look it up!
Am now eagerly awaiting my next Botany Crew outing, (Tree ID in winter) so that I can impress them with my correct pronounciation when looking at Horse Chestnut buds... which I am sure we will be doing!
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