TAMU Herbarium - Department of Biology, Texas A&M University
Texas Vascular Plant Checklist - Summary Page



Electronic files provided by the Biota of North America Program via the USDA Plants database represent the only current information available regarding the vascular plant diversity of Texas and the southwestern United States. As part of its academic mission, the TAMU Herbarium is working with various systems that function to expand expression and analysis of floristic data. This checklist enterprise involves a file download from the Plants Database website, conversion of the downloaded text file (http://plants.usda.gov/java/stateDownload?statefips=US48) to an excel spreadsheet, output from the spreadsheet to to an ascii file that is delimited to allow attachment to a GURU database table, usdalist.itb (http://www.mdbs.com/prod_guru.htm). The program 'texcheck.ipf', written by TAMU curator Hugh Wilson, walks through this table and produces an HTML page for each vascular plant family present in the Texas flora. Page production involves parsing to format names and out links and also the production of a new table (usdafams.itb) that carries the vascular plant family name and a genus, species, subspecies, and variety count for each family. The program uses the Plants Database taxon code to query GURU data tables derived from Plants data for Louisiana, Arkanas, Oklahoma and New Mexico to produced the distribution statment that follows each name in the listing. Once pages are printed, this table is expanded with higher-level taxonomic tags, based mostly on the Cronquist System of classification, sorted, and used to print the base page of the system.

The final action of the program is to produce this page, which at this point in time is descriptive. However, as development proceeds, statistical summaries will be placed here.


This page was machine-generated using data downloaded in October of 2008 from the Plants Database processed by the program texcheck.ipf on: 01/15/09.
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