**2.1.** *Aeollanthus* **genus**

*Aeollanthus* genus represented by 43 species globally and 7 in SA. From *A. buchnerianus,* an abietane diterpene, [(rel)-14α-acetoxyabiet-7-en-18-oic acid] (**1**) [14], 3*β*-acetoxy-7,15-isopimaradiene (**2**), 3*β*-acetoxy-7,15-isopimaradien-19-ol (**3**) and 19-acetoxy-7,15-isopimaradien-3*β*-ol (**4**), 7,15-isopimaradien-19-ol (**5**, akhdarenol) and 7,15-isopimaradien-3*β*,19-diol (**6**, virescenol), a mixture of 19-isobutyryloxy- and 19-butyryloxy-8*β*-hydroxy-15-isopimarene (**7**), and a 3:1 mixture of 5-stigmasten-3*β*-ol and *β*-sitosterol were isolated from the aerial parts of *A. rydingianus*. 5 and 6 showed activity against *S. aureus* and *Enterococcus hirae* [15].
