Fern constituents: Six tetracyclic triterpenoid hydrocarbons having different carbon skeletons, isolated from Lemmaphyllum microphyllum var. obovatum.

Abstract

The presence of six tetracyclic triterpenoid hydrocarbons, bacchara-12, 21-diene (1), lemmaphylla-7, 21-diene (2), shiona-3, 21-diene (3), dammara-18 (28), 21-diene (4), tirucalla-7, 21-diene (5) and eupha-7, 21-diene (6) was proved in the fresh whole plants of Lemmaphyllum microphyllum var. obovatum.