CEPHALOZIA BISCUSPIDATA (L.) Dumort. Recueil d'Obs. sur les Jung. i8. 1835.
Jungermannia bicuspidata L. Sp. P1. 1132. 1753. Jungermannia LammArdana Hiiben. Hepaticol. Germ. 165.
Gametophyte a slender prostrate greenish leafy stem, 1-3 cm, long, flagelliferous branching; leaves distant in the basal portion. imbricate toward the apex, round-ovate, cleft to the middle or be yond, with spreading lanceolate, acute or acuminate lobes ; leaf cells uniform, in diameter: monoicous or in one form dioicous; perianth on a very short branch, about four times the length of the leaves, somewhat fusiform. Sporophyte cylindric oblong on a short seta ; calyptra thin ; spores purple.
On rotten wood and on the ground ; widely distributed from Newfoundland to British Columbia and southward along the Appalachian area ; also reported from California (Howe); the species is also European. It was distributed by Sullivant Musc.
Alleg. 240 (as Jungennannia bicuspidate); by Austin : Hep. Bor. Am. 58, 59, the latter as var. cenrferta, a form with crowded leaves ; and in Hep. Amer. 71. The form known as C. La111111CISialla found in the British Possessions can hardly be maintained as distinct.
The species has been frequently figured, the best figures being Hooker, Brit. Jung. pl. II , and Suppl. .,1; Ekart, Syn. Jung. Germ. pl. 1, f. 23 ; and Smith, Engl. Bot. p1. 2239.