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Spring Indices First Leaf Date (Average 1961-1990) Spring Indices First Bloom Date (Average 1961-1990) NPN Presentation as of May 1, 2007 (ppt, 11.4Mb) NPN Registered Observers as of June 7, 2007 (jpg, 166Kb)
Send your comments concerning the site to Mark D. Schwartz © 2004 University of Wisconsin-MilwaukeeLast Updated: June 7, 2007
