Garden Dictionary Word: field preservatives
Materials used to hold wet plant samples for long periods of time, or to hold plant specimens in tropical areas. Examples are 2:3 commercial 40 percent formaldehyde and water; 1:2 formaldehyde and 70 percent alcohol; 40-50 percent alcohol; 1-2 percent aqueous solution of oxyquinoline sulfate. Specimens may be dipped, sprayed, or brushed with one of these, then enclosed in an airtight container.
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