peristome

英語（米国） (en-US) 英語（イギリス） (en-GB)

名詞

(botany) One or two rings of tooth-like appendages surrounding the opening of the capsule of many mosses. / (zoology) The parts of or surrounding the mouths of numerous invertebrates.

日本語の意味

苔類の胞子嚢の開口部を取り囲む、一重または二重の歯状の構造 / 無脊椎動物の口またはその周囲の構造

英語の意味

(botany) One or two rings of tooth-like appendages surrounding the opening of the capsule of many mosses. / (zoology) The parts of or surrounding the mouths of numerous invertebrates.

このボタンはなに？

The peristome controls the release of spores from the moss capsule as humidity changes.

コケの蒴（胞子嚢）の開口部を囲む一列または二列の歯状の付属物は、湿度の変化に応じて胞子の放出を調節する。

詳細

意味（1）

(botany) One or two rings of tooth-like appendages surrounding the opening of the capsule of many mosses.

Its removal does not, however, leave the mouth of the capsule wide open, for around the margin are two circles of pointed teeth forming the peristome.

詳細

意味（2）

(zoology) The parts of or surrounding the mouths of numerous invertebrates.

We can distinguish therefore in the body of a polyp the column, circular or oval in section, forming the trunk, resting on a base or foot and surmounted by the crown of tentacles, which enclose an area termed the peristome, in the centre of which again is the mouth. […] The mouth may be level with the surface of the peristome, or may be projecting and trumpet-shaped.

詳細

意味（3）

The lip, or edge of the aperture, of a spiral shell.

peristomes （ plural ）