plural noun
Pot·ti·a·les | \-ā(ˌ)lēz\

Definition of Pottiales 

: an order of Musci comprising mosses that have gametophores with many-ranked leaves having a distinct midrib and a usually acrocarpous sporophyte with a capsule having either a simple 16-toothed peristome or none

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History and Etymology for Pottiales

New Latin, from Pottia + -ales

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