simple pit

simple pit

[′sim·pəl ′pit]
(botany)
A pit that lacks a border.
References in periodicals archive ?
Hyphae can grow through the torus and through simple pit pairs of parenchyma cells.
The most common responses were simple pit (22% regional median) and open pit (16% regional median).
This, however, was only possible because a large number of the dead were buried in thick-walled pithoi, not simple pits or stone cists which were also present but did not show up on the magnetometer graphs.