EXTINGUISHER MOSS

any of the plants of the genus Encalypta (order Bryales), which form large tufts on limestone rocks, ledges, and walls. About eight species are native to North America. They are usually 1 to 3 cm (0.4 to 1.2 inches) tall, with erect capsules (spore cases) borne on setae (stalks) about 5 to 10 mm (0.2 to 0.4 inches) long. The calyptra (hoodlike covering) of each capsule resembles a candle snuffer, or extinguisher, and extends below the capsule; in E. ciliata the calyptra is fringed.