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出典:Wiktionary
出典:『Wiktionary』 (2025/11/20 21:17 UTC 版)
cystolith (plural cystoliths)
Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “cystolith”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)
出典:Wikipedia
出典:『Wikipedia』 (2011/04/16 19:41 UTC 版)
Cystolith (Gr. "cavity" and "stone") is a botanical term for the inorganic concretions, usually of calcium carbonate, formed in a cellulose matrix in special cells, generally in the leaf of plants of certain families, e.g. Ficus elastica, the Indian rubber plant of the family Moraceae. Plants in the family Urticaceae, also known as Stinging Nettles, also form leaf cystoliths, but only during their later flowering and seed setting stages. Cannabis and other plants in the family Cannabaceae also produce leaf and flower cystoliths.