3. ID, Collect, Storage

3. ID, Collect, Storage - dentifying Collecting Pressing...

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Identifying, Collecting, Pressing, Mounting, and Storing Plants To correctly identify a plant, you must have : 1. Knowledge of terminology 2. Knowledge of floras, manuals, and use of herbaria 3. Experience in identification Methods of identification 1. Naming by comparison -compare unknown plant to herbarium specimens, photographs, or drawings -may have a plant not illustrated or collected 2. Naming by using an expert -send specimens to an expert and let them attach annotation labels 3. Identification yourself using a key -best way to get to know a flora of a region
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Key- artificial analytical arrangement of taxa designed for identification -uses contrasting terms to divide organisms into smaller groups -should be dichotomous -found in floras (without complete descriptions) and manuals (with complete descriptions) Two types of keys: 1. Bracketed or parallel key -couplets next to each other -Manual of Vascular Plants of Texas is an example of this type of space-efficient key. 2. Indented Key -couplets indented a fixed distance - Shinners and Mahler’s Illustrated Flora of North Central Texas is an example of this most common, though not as space-efficient type of key
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Select an average plant or collect several small specimens showing e range of variation. Do not collect sterile specimens. Collect all the plant when possible, including the underground parts, pecially if these are unusual in some way (such as bulbs, izomes). Roots of woody plants are seldom collected. A large ant can be bent to fit the press and later the mounting paper. ollect several individuals of a small sized specimen so that it will fill p the herbarium sheet. Place the plant at once in the press, vasculum, or a plastic collecting g. Use a field notebook to keep accurate information on each plant.
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3. ID, Collect, Storage - dentifying Collecting Pressing...

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