Senecio bachmannii Muschl. (original description)
Senecio bussei Muschl. accepted as Senecio purpureus L. (original description)
Senecio conradii Muschl. accepted as Senecio milanjianus S.Moore (original description)
Senecio cupulatus Volkens & Muschl. accepted as Senecio macroglossus DC. (original description)
Senecio deaniensis Muschl. accepted as Senecio meyeri-johannis Engl. (original description)
Senecio dielsii Muschl. (original description)
Senecio diversidentatus Muschl. accepted as Senecio inornatus DC. (original description)
Senecio evelynae Muschl. (original description)
Senecio gilgianus Muschl. (original description)
Senecio glanduloso-pilosus Volkens & Muschl. (original description)
Senecio hoffmannianus Muschl. accepted as Emilia discifolia (Oliv.) C.Jeffrey (original description)
Senecio insularis Muschl. (original description)
Senecio krauseanus Muschl. (original description)
Senecio lambomboensis Muschl. (original description)
Senecio massaiensis Muschl. accepted as Senecio schweinfurthii O.Hoffm. (original description)
Senecio melanophyllus Muschl. accepted as Senecio schweinfurthii O.Hoffm. (original description)
Senecio mildbraedii Muschl. (original description)
Senecio mirabilis Muschl. accepted as Solanecio mirabilis (Muschl.) C.Jeffrey (original description)
Senecio nigrescens Muschl. (original description)
Senecio petraeus (R.E.Fr.) Muschl. accepted as Kleinia petraea (R.E.Fr.) C.Jeffrey (original description)
Senecio phellorhizus Muschl. accepted as Kleinia grantii (Oliv. & Hiern) Hook.f. (original description)
Senecio pilgerianus Muschl. (original description)
Senecio platzii Volkens (original description)
Senecio schinzianus Muschl. (original description)
Senecio tenuicaulis Muschl. (original description)
Senecio thomsianus Muschl. accepted as Senecio subsessilis Oliv. & Hiern (original description)
Senecio tylodis Muschl. (original description)
Senecio uhligii Muschl. accepted as Senecio meyeri-johannis Engl. (original description)
Senecio usambarensis Muschl. accepted as Mikaniopsis usambarensis (Muschl.) Milne-Redh. (original description)