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Biological Techniques Collecting Preserving and ~ Biological Techniques Collecting Preserving and Illustrating Plants and Animals Jens W Knudsen on FREE shipping on qualifying offers

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Vol 38 No 1 Mar 1967 of Bios on JSTOR ~ Biological Techniques Collecting Preserving and Illustrating Plants and Animals by Jens W Knudsen Biological Techniques Collecting Preserving and Illustrating Plants and Animals by Jens W Knudsen p

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Techniques and Procedures for Collecting Preserving ~ ing techniquesIn the field take care when selecting the plant material for collection Do not collect species that are rare or endangered Three species are protected by statute in British Columbia western flowering dogwood Cornus nuttallii Pacific rhododendron Rhododendron macrophyllum and western trillium Trillium ovatum

Collecting and preserving plant specimens a manual ~ A good specimen includes stems leaves flowers and fruits Basal parts of grasses sedges ferns and bulbous plants are essential for identification Underground parts tubers rhizomes are important for some plant groups

Collection and Field Preparation of Specimens ~ Plants too large for a single sheet may be divided and pressed as a series of sheets see discussion below In collecting large herbs shrubs and tr ees different types of foliage flowers and fruits should be collected from the same plant Collect sufficient material to fill an herbarium sheet and still leave enough room for the label

Collection and Preservation of Plants Biology Discussion ~ 1 Collection and Preservation of Algae Most of the filamentous and other macrophytic algae are collected from the natural habitats by collecting net or directly by hand using scalpel Planktonic algae are collected through filtration of surface water using plankton net mesh sizes 40 – 60 µm

Collecting and Preserving Zoological Specimens NZETC ~ Collecting Methods Organisation of field work is best left to the collector Most marine work will be done between tide marks and full advantage should be taken of the predictions and times of lowest tides in the Nautical Almanac On rocky coasts especially the area should be reached an hour or two before low tide