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(botany) Resembling a member of the genus Nostoc of cyanobacterium quotations examples
The Nostocoid type consists of small rounded blue-green cells not over 5p. in diameter and arranged in chains which are often much broken up in the cephalodium, so that the concatenate arrangement is hardly apparent.
1947, Ivan Mackenzie Lamb, A monograph of the lichen genus Placopsis Nyl, page 166
The filaments are typically somewhat twisted or nostocoid and the trichomes are very narrow, barely three micra in diameter.
1953, Natural and Applied Science Bulletin