Sessile

(adj.) attached directly by the base; not having an intervening stalk; 'sessile flowers'; 'the shell of a sessile barnacle is attached directly to a substrate' .

(adj.) permanently attached to a substrate; not free to move about; 'sessile marine animals and plants' .

克利夫顿录入

• Bosquet, sent me a drawing of a perfect specimen of an unmistakable sessile cirripede, which he had himself extracted from the chalk of Belgium. 查尔斯·达尔文. 物种起源.

达拉整理