| 释义 |
‖ peridium Bot.|pɪˈrɪdɪəm|
Pl. -ia.
[a. Gr. πηρίδιον, dim. of πήρα leathern bag, wallet.]
The outer coat or envelope of certain fungi, which encloses the spores; it is variously shaped, and often partly gelatinous.
1823in Crabb Technol. Dict. 1826G. N. Lloyd Bot. Terminol. 148 Peridium, a thin membrane in some Fungi, which separates in various ways, under which lie the seeds or seed-bearing bodies. 1832Lindley Introd. Bot. i. iii. 209 Peridium, is also a kind of covering of sporidia; peridiolum is its diminutive. 1861Bentley Man. Bot. 387. 1874 Cooke Fungi 34 The peridia are seated upon this mycelium.
Hence peˈridial a., of or pertaining to the peridium; peˈridiiform a., of the form of a peridium; peˈridiole [mod.L. peridiolum, dim. of peridium], a small or secondary peridium, or the inner layer of a peridium when double.
1832[see peridium]. 1832Lindley Introd. Bot. 207 Peridiole, Fr.; the membrane by which the sporules are immediately covered. 1857Mayne Expos. Lex., Peridiolum,..a peridiole. 1874Cooke Fungi 35 Externally there is a filamentous tunic, composed of interlaced fibres, sometimes called the peridiole. 1887Garnsey & Balfour tr. De Bary's Fungi lxxxix. 312 A very massive peridial wall. |