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...
- in which there are two rings of teeth - the inner endostome and outer exostome. Divisural line – Elaterstructures derived from the sporangium of liverworts...
- 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...
- spores; the peristome teeth are haplolepideous with a 4:2:3 formula, and an exostome is absent. Goffinet, Bernard; William R. Buck & Jonathan Shaw (2008). Goffinet...
- sets of teeth, an inner endostome and an outer exostome, which ring the mouth of the capsule. The exostome teeth are orange- or yellow-brown to pale yellow...
- mosses of the Bryopsida class, Plagiomnium venustum contain papillose exostome teeth and endostome peristome teeth. The sporangial jacket contains mammillose...
- rostrum. Peristomes are pale, double; strongly bordered and shouldered 16 exostome teeth with a zig-zag median line, trabeculae on inner surface; endostome...
- 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-...
- strands lacking in shoots, shortened setae (bristles), no annuli, and an exostome (the outer ring of peristome teeth) that flexes open when moist and flexes...
- species. The sporangia have peristome teeth are diplolepidous, with 8 to 16 exostome teeth and 8 endostome teeth. The sporangia sit on top of a seta which attaches...