Austrosynotis C.Jeffrey (original description)
Austrosynotis rectirama (Baker) C.Jeffrey (original description)
Crassocephalum effusum (Mattf.) C.Jeffrey (original description)
Crassocephalum heteromorphum (Hutch. & B.L.Burtt) C.Jeffrey accepted as Crassocephalum radiatum S.Moore (original description)
Crassocephalum paludum C.Jeffrey (original description)
Crassocephalum splendens C.Jeffrey (original description)
Emilia abyssinica (Sch.Bip. ex A.Rich.) C.Jeffrey (original description)
Emilia abyssinica var. macroglossa C.Jeffrey (original description)
Emilia ambifaria (S.Moore) C.Jeffrey (original description)
Emilia aurita C.Jeffrey (original description)
Emilia baberka (Hutch.) C.Jeffrey (original description)
Emilia bellioides (Chiov.) C.Jeffrey (original description)
Emilia brachycephala (R.E.Fr.) C.Jeffrey (original description)
Emilia cenioides C.Jeffrey (original description)
Emilia coloniaria (S.Moore) C.Jeffrey (original description)
Emilia crispata C.Jeffrey (original description)
Emilia cryptantha C.Jeffrey (original description)
Emilia decipiens C.Jeffrey (original description)
Emilia discifolia (Oliv.) C.Jeffrey (original description)
Emilia emilioides (Sch.Bip.) C.Jeffrey (original description)
Emilia fallax (Mattf.) C.Jeffrey (original description)
Emilia flaccida C.Jeffrey (original description)
Emilia fugax C.Jeffrey (original description)
Emilia gossweileri (S.Moore) C.Jeffrey (original description)
Emilia helianthella C.Jeffrey (original description)
Emilia hiernii C.Jeffrey (original description)
Emilia hockii (De Wild. & Muschl.) C.Jeffrey (original description)
Emilia homblei (De Wild.) C.Jeffrey (original description)
Emilia irregularibracteata (De Wild.) C.Jeffrey (original description)
Emilia juncea var. iringensis C.Jeffrey (original description)
Emilia kilwensis C.Jeffrey (original description)
Emilia kivuensis (Muschl.) C.Jeffrey (original description)
Emilia leptocephala (Mattf.) C.Jeffrey (original description)
Emilia leucantha C.Jeffrey (original description)
Emilia limosa (O.Hoffm.) C.Jeffrey (original description)
Emilia longifolia C.Jeffrey (original description)
Emilia longipes C.Jeffrey (original description)
Emilia longiramea (S.Moore) C.Jeffrey (original description)
Emilia lopollensis (Hiern) C.Jeffrey (original description)
Emilia marlothiana (O.Hoffm.) C.Jeffrey (original description)
Emilia micrura C.Jeffrey (original description)
Emilia myriocephala C.Jeffrey (original description)
Emilia newtonii (O.Hoffm.) C.Jeffrey accepted as Psednotrichia newtonii (O.Hoffm.) Anderb. & P.O.Karis (original description)
Emilia pammicrocephala (S.Moore) C.Jeffrey (original description)
Emilia pseudactis C.Jeffrey (original description)
Emilia rigida C.Jeffrey (original description)
Emilia sect. Spathulatae (Muschl.) C.Jeffrey (original description)
Emilia simulans C.Jeffrey (original description)
Emilia somalensis (S.Moore) C.Jeffrey (original description)
Emilia tenellula (S.Moore) C.Jeffrey (original description)
Emilia tenera (O.Hoffm.) C.Jeffrey (original description)
Emilia tenuipes C.Jeffrey (original description)
Emilia tenuis C.Jeffrey (original description)
Emilia tessmannii (Mattf.) C.Jeffrey (original description)
Emilia transvaalensis (Bolus) C.Jeffrey (original description)
Emilia tricholepis C.Jeffrey (original description)
Emilia ukambensis (O.Hoffm.) C.Jeffrey (original description)
Emilia ukingensis (O.Hoffm.) C.Jeffrey (original description)
Emilia xyridopsis (O.Hoffm.) C.Jeffrey accepted as Psednotrichia xyridopsis (O.Hoffm.) Anderb. & P.O.Karis (original description)
Gynura campanulata C.Jeffrey (original description)
Kleinia abyssinica var. hildebrandtii (Vatke) C.Jeffrey (original description)
Kleinia breviflora C.Jeffrey (original description)
Kleinia dolichocoma C.Jeffrey (original description)
Kleinia gregorii (S.Moore) C.Jeffrey (original description)
Kleinia implexa (P.R.O.Bally) C.Jeffrey (original description)
Kleinia leptophylla C.Jeffrey (original description)
Kleinia mweroensis (Baker) C.Jeffrey (original description)
Kleinia oligondonta C.Jeffrey (original description)
Kleinia patriciae C.Jeffrey (original description)
Kleinia petraea (R.E.Fr.) C.Jeffrey (original description)
Kleinia picticaulis (P.R.O.Bally) C.Jeffrey (original description)
Kleinia scottioides C.Jeffrey (original description)
Kleinia subg. Notonia (DC.) C.Jeffrey accepted as Kleinia Mill. (original description)
Kleinia vermicularis C.Jeffrey (original description)
Mikaniopsis bambuseti (R.E.Fr.) C.Jeffrey (original description)
Mikaniopsis cissampelina (DC.) C.Jeffrey (original description)
Senecio amplificatus C.Jeffrey (original description)
Senecio crispatipilosus C.Jeffrey (original description)
Senecio dentato-alatus Mildbr. ex C.Jeffrey (original description)
Senecio discokaraguensis C.Jeffrey (original description)
Senecio doryphoroides C.Jeffrey (original description)
Senecio exarachnoideus C.Jeffrey (original description)
Senecio gramineticola C.Jeffrey (original description)
Senecio greenwayi C.Jeffrey (original description)
Senecio hedbergii C.Jeffrey (original description)
Senecio immixtus C.Jeffrey (original description)
Senecio johnstonii subsp. adnivalis (Stapf) C.Jeffrey (original description)
Senecio johnstonii var. adnivalis (Stapf) C.Jeffrey accepted as Senecio johnstonii subsp. adnivalis (Stapf) C.Jeffrey (original description)
Senecio johnstonii var. alticola (T.C.E.Fr.) C.Jeffrey accepted as Dendrosenecio erici-rosenii subsp. alticola (Mildbr.) E.B.Knox (original description)
Senecio johnstonii var. battiscombei (R.E.Fr. & T.C.E.Fr.) C.Jeffrey accepted as Dendrosenecio battiscombei (R.E.Fr. & T.C.E.Fr.) E.B.Knox (original description)
Senecio johnstonii var. cheranganiensis C.Jeffrey (original description)
Senecio johnstonii var. cottonii (Hutch. & G.Taylor) C.Jeffrey accepted as Dendrosenecio kilimanjari subsp. cottonii (Hutch. & G.Taylor) E.B.Knox (original description)
Senecio johnstonii var. dalei C.Jeffrey accepted as Dendrosenecio cheranganiensis subsp. dalei (Cotton & Blakelock) E.B.Knox (original description)
Senecio johnstonii var. elgonensis (T.C.E.Fr.) C.Jeffrey accepted as Dendrosenecio elgonensis subsp. elgonensis (original description)
Senecio johnstonii var. erici-rosenii (R.E.Fr. & T.C.E.Fr.) C.Jeffrey (original description)
Senecio johnstonii var. kilimanjari (Mildbr.) C.Jeffrey (original description)
Senecio johnstonii var. ligulatus C.Jeffrey accepted as Dendrosenecio elgonensis subsp. barbatipes (Hedberg) E.B.Knox (original description)
Senecio johnstonii var. meruensis (Cotton & Blakelock) C.Jeffrey accepted as Dendrosenecio meruensis (Cotton & Blakelock) E.B.Knox (original description)
Senecio keniensis subsp. brassiciformis (R.E.Fr. & T.C.E.Fr.) C.Jeffrey accepted as Dendrosenecio brassiciformis (R.E.Fr. & T.C.E.Fr.) Mabb. (original description)
Senecio mabberleyi C.Jeffrey (original description)