Psilotum nudum (L.) P.Beauv.
Lycopodium nudum L. Sp. Pl. 1753, 1100.
P. triquetrum Swartz Syn. Fil. 1806, 117.
P. heterocarpum Col. in T.N.Z.I. 20, 1888, 237.
Aerial axis up to 4 dm. long, erect, much branched, branchlets triquetrous. Lobes on angles of axis and branchlets, 2-4 mm. long, ovate-subulate. Sporangia subsessile, globose, subcoriac., 1·5-3 mm. diam., 3-lobed, 3-celled.
DIST.: K., common; N., various lowland localities from lat. 35º to 39º, usually terrestrial.