Definition of Exostome. Meaning of Exostome. Synonyms of Exostome

Here you will find one or more explanations in English for the word Exostome. Also in the bottom left of the page several parts of wikipedia pages related to the word Exostome and, of course, Exostome synonyms and on the right images related to the word Exostome.

Definition of Exostome

Exostome
Exostome Ex"o*stome, n. [Exo- + Gr. ? mouth :cf. F. exostome.] (Bot.) The small aperture or foremen in the outer coat of the ovule of a plant.

Meaning of Exostome from wikipedia

- endoperistome) and an exostome. The endostome is a more delicate membrane, and its teeth are aligned between the teeth of the exostome. There are a few mosses...
- endoperistome) and an exostome. The endostome is a more delicate membrane, and its teeth are aligned between the teeth of the exostome. There are a few mosses...
- in which there are two rings of teeth - the inner endostome and outer exostome. Divisural line – Elater – structures derived from the sporangium of liverworts...
- opening. All species have two rows of peristome teeth. The outer surface of exostome teeth have zigzag lines as well as lamellae. The annulus is either 1-3-...
- mosses of the Bryopsida class, Plagiomnium venustum contain papillose exostome teeth and endostome peristome teeth. The sporangial jacket contains mammillose...
- spores; the peristome teeth are haplolepideous with a 4:2:3 formula, and an exostome is absent. Dicranidae are an acrocarpous class of moss. Their foliage is...
- 472 in) in length. The capsules are cylindric, oblong, or globose. The exostome teeth are lanceolate and smooth to densely papillose. They somewhat cross...
- The mature sporangium have two rows of peristome teeth (exostome and endostome). The exostome teeth are lance-shaped and bordered with multiple ridges...
- rostrum. Peristomes are pale, double; strongly bordered and shouldered 16 exostome teeth with a zig-zag median line, trabeculae on inner surface; endostome...
- (diplolepidious) formed from the cell walls of disintegrated cells. The exostome (outer row) consists of 16 short articulated "teeth". Unlike most other...