An order of (mainly) acrocarpous mosses of medium size; mostly tufted, or cushion-forming. The leaves often terminate in long, fine, hair-points. They are mostly saxicolous. Genera include Grimmia, Racomitrium, and Schistidium. S. maritimum and S. apocarpum were formerly known as Grimmia maritima and Grimmia apocarpa, respectively. S. maritimum is found only on rocks by the sea; S. apocarpum is common on rocks and walls, often in association with G. pulvinata and Tortula muralis.
Subjects: Plant Sciences and Forestry.