Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 exptools 1/6/84; site ihuxj.UUCP Path: utzoo!watmath!clyde!floyd!harpo!ihnp4!ihuxj!duhon From: duhon@ihuxj.UUCP (duhon) Newsgroups: net.garden Subject: Re: Leaves on oak trees Message-ID: <434@ihuxj.UUCP> Date: Mon, 19-Mar-84 08:48:49 EST Article-I.D.: ihuxj.434 Posted: Mon Mar 19 08:48:49 1984 Date-Received: Tue, 20-Mar-84 00:43:50 EST References: <171@siemens.UUCP> Organization: AT&T Bell Labs, Naperville, IL Lines: 5 In northeastern Illinois some oaks keep some of their leaves until spring. This is often the case with a mild fall. I believe this is mostly due to callous tissue forming incompletely or more slowly between the leaf scar (twig) and petiole. You can notice this same "leaf holding" in many beeches (the oaks are in the beech family).