Bot. [L. trāma woof, weft, filling of a web.] The substance between the surfaces of the ‘gills’ of hymenomycetous fungi. Also called intralamellar substance, dissepiment. Hence Tramal a. (Cent. Dict., 1891).
1857. Berkeley, Cryptog. Bot., § 399. In Schizophyllum, the gills split in the direction of their trama.
1874. Cooke, Fungi, 23. In Lactarius and Russula the trama, or inner substance, is vesicular.
1875. Bennett & Dyer, trans. Sachs’ Bot., 250. The substance of the lamella, called the Trama.
