308 American Midland Naturalist Monograph No. 6 



Glossary of Bryological Terms Used in the Manual 



Acaulescent , stemless. 



Acrocarpous, with the fruit terminal on the stem or branch. 



Acumen, a slenderly tapering apex, — acumination. 



Acuminate, narrowly and slenderly tapering at the apex. 



Acute, rather abruptly sharply pointed. 



Alar, applied to the cells at the basal angles of the leaf. 



Angular, applied to the alar group of cells. 



Annulus, the ring of specialized cells often occurring between the rim of the capsule and 



the op>erculum. 

 Antheridium, the male reproductive organ. See Introduction. 

 Apiculate, ending in a sharp and short point or apiculus. 

 Apophysis, the hypophysis or swelling of the seta just below the capsule. 

 Appendiculate, with reference to the cilia, with short transverse bars. 

 Arcbegonium, the more or less flask-shap>ed female organ. 

 Arcuate, bent like a bow. 



Areolation, the cellular mesh or network of the leaf. 

 Aristale, awn-like or bristle-like. 

 Articulate, jointed, or with cross-bars. 

 Attenuate, long drawn out. 

 Auriculate, furnished with more or less ear-like lobes at the basal angles, applied to the 



leaf. 

 Autoicous, having the archegonia and antheridia in separate clusters on the same plant. 

 Axillary, situated in the axil or upper angle of the insertion of a leaf. 



Beak, the prolonged narrow apex of the operculum. 



Bicostate, having a double costa or midrib. 



Bifid, two-cleft. 



Bifurcate, forked. 



Bi-stratose, with two layers of cells. 



Bi-striate, with two parallel lines or striae. 



Calyptra, the thin and usually more or less membranous hood or cap on top of the 



capsule. 

 Campanulate, bell-shaped. 

 Canaliculate, channeled. 

 Cancellate, (teeth) lattice-like. 



Capsule, the spore-case or so-called "fruit" of a moss. 

 Carinate, keeled. 



Caulescent, furnished with a stem. 

 Castaneous, chestnut-brown in color. 



Central Strand, a central bundle of narrow and elongated cells found in some moss-stems. 

 Cernuous, somewhat drooping, nodding. 

 Cespitose, forming mats or tufts. 



Cblorophyllose, containing chlorophyll or the green coloring matter of leaves. 

 Cilia, fine hair-like processes, usually applied to the hair-like structures often occurring 



between the peristome-segments. 

 Ciranate, coiled inward from the apex. 

 Cirrate, curling up in drying. 

 Clavate, club-shaped. 



Cleistocarpous, applied to a capsule which bursts open irregularly. 

 Collum, the more or less tafjering neck or base of the capsule. 

 Columella, the central axis of the capsule around which the spores are produced. 

 Comose, tufted at the apex, in a coma. 

 Complanate, flattened. 



