plural noun
Grim·​mi·​a·​les | \ ˌgrimēˈā(ˌ)lēz\

Definition of Grimmiales

: an order of Musci comprising acrocarpous mosses that are usually blackish green with branching stems and densely crowded leaves and that grow chiefly on rocks

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History and Etymology for Grimmiales

New Latin, from Grimmia + -ales

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