Dawsonia (plant) lamella – chains of small cells on the upper surface of the leaves analogous to the mesophyll cells of vascular plant leaves. They increase the surface area of cell walls available for CO uptake, while at the same time maintaining layers of moist air between lamellae, reducing water loss. Lamella margins have a surface wax layer which prevents water from flooding into the interlamellar spaces. Dawsonia (plant) Dawsonia is a genus of acrocarpous mosses. "Dawsonia", along with other members of the order Polytrichales, are taller than most mosses and have thicker leaves. Their sporophytes have conducting systems analogous to those
Kiaeria (plant) Kiaeria (plant) Kiaeria is a genus of mosses of the family Dicranaceae. The genus is named after Franz Caspar Kiaer (1835-1893), a Norwegian doctor and bryologist. The moss is similar to small "Dicranum" species and form loose to dense cushions. The stems are erect, 1-2 inches high (occasionally higher) and are sparsely fibrous with rhizoids below. The leaves are lanceolate, erect-spreading, sometimes falcate, with full margins, to cut up against the blade tip, with emerging veining. The leaf cells are elongated at the leaf base and smooth, the top sheet portion extends to approximately square and smooth. The leaf wing