Achyrocline insularis Humbert accepted as Helichrysum globosum Sch.Bip. (original description)
Aspilia minima Humbert (original description)
Bojeria perrieri Humbert accepted as Inula perrieri (Humbert) Mattf. (original description)
Brachylaena argentea Humbert accepted as Vernonia ibityensis Humbert accepted as Distephanus ibityensis (Humbert) V.A.Funk & H.Rob. (original description)
Brachylaena coriifolia (Baker) Humbert accepted as Brachylaena merana (Baker) O.Hoffm. (original description)
Brachylaena merana (Baker) Humbert accepted as Brachylaena merana (Baker) O.Hoffm. (original description)
Brachylaena perrieri (Drake) Humbert (original description)
Brachylaena ramiflora (DC.) Humbert (original description)
Brachylaena stellulifera Humbert (original description)
Catatia Humbert (original description)
Catatia attenuata Humbert (original description)
Catatia cordata Humbert (original description)
Centauropsis antanossi (Scott-Elliot) Humbert (original description)
Centauropsis cuspidata Humbert (original description)
Centauropsis perrieri Humbert (original description)
Centauropsis vilersii Humbert (original description)
Colobanthera Humbert (original description)
Colobanthera waterlotii Humbert (original description)
Conyza alluaudii Humbert (original description)
Conyza andringitrana Humbert (original description)
Conyza bakeri Humbert (original description)
Conyza perrieri Humbert (original description)
Conyza sarmentosa Humbert (original description)
Conyza urticifolia (Baker) Humbert (original description)
Conyza viguieri Humbert (original description)
Decastylocarpus Humbert (original description)
Decastylocarpus perrieri Humbert (original description)
Diaphractanthus Humbert (original description)
Dicoma carbonaria (S.Moore) Humbert (original description)
Dicoma grandidieri (Drake) Humbert (original description)
Dicoma oleifolia Humbert accepted as Cloiselia oleifolia (Humbert) S.Ortiz (original description)
Diplostephium madagascariense Humbert accepted as Madagaster madagascariensis (Humbert) G.L.Nesom (original description)
Eleutheranthera madagascariensis Humbert accepted as Exomiocarpon madagascariense (Humbert) Lawalrée (original description)
Emilia capillaris Humbert (original description)
Emilia perrieri Humbert (original description)
Epallage boinensis Humbert accepted as Anisopappus boinensis (Humbert) Wild accepted as Epallage dentata var. boinensis (Humbert) Humbert (original description)
Epallage buchwaldii (O.Hoffm.) Humbert accepted as Anisopappus chinensis var. buchwaldii (O.Hoffm.) S.Ortiz, Paiva & Rodr.Oubiña (original description)
Epallage calva Humbert accepted as Epallage anemonifolia var. calva (Humbert) Humbert (original description)
Epallage imbricata Humbert accepted as Anisopappus orbicularis (Humbert) Wild (original description)
Epallage nuda Humbert accepted as Epallage dentata var. dentata (original description)
Epallage orbicularis Humbert accepted as Anisopappus orbicularis (Humbert) Wild (original description)
Epallage pusilla (S.Moore) Humbert (original description)
Epallage scrophulariifolia Humbert (original description)
Epallage sylvatica Humbert accepted as Anisopappus sylvaticus (Humbert) Wild (original description)
Epaltes madagascariensis Humbert (original description)
Gerbera diversifolia Humbert (original description)
Gerbera elliptica Hambert (original description)
Gerbera perrieri Humbert (original description)
Gerbera petasitifolia Humbert (original description)
Grangea hispida Humbert accepted as Grangea maderaspatana (L.) Poir. (original description)
Grangea lanata Humbert accepted as Dichrocephala gossypina Baker (original description)
Grangeopsis Humbert (original description)
Grangeopsis perrieri Humbert (original description)
Gynura lutea Humbert accepted as Crassocephalum montuosum (S.Moore) Milne-Redh. (original description)
Helichrysum abietifolium Humbert (original description)
Helichrysum attenuatum Humbert (original description)
Helichrysum bakeri Humbert (original description)
Helichrysum baronii Humbert (original description)
Helichrysum bracteiferum (DC.) Humbert (original description)
Helichrysum brevifolium Humbert (original description)
Helichrysum calocladum Humbert (original description)
Helichrysum campanulatum Humbert (original description)
Helichrysum cephalotrichum Humbert accepted as Helichrysum heterotrichum Humbert (original description)
Helichrysum chermezonii Humbert (original description)
Helichrysum coarctatum Humbert accepted as Helichrysum leucosphaerum Baker (original description)
Helichrysum danguyanum Humbert (original description)
Helichrysum delicatum Humbert accepted as Helichrysum heterotrichum Humbert (original description)
Helichrysum deltoideum Humbert (original description)
Helichrysum dichroum Humbert (original description)
Helichrysum dracaenifolium Humbert (original description)
Helichrysum empetroides Humbert accepted as Helichrysum retrorsum var. empetroides (Humbert) Humbert (original description)
Helichrysum filaginoides (DC.) Humbert (original description)
Helichrysum foliosum Humbert (original description)
Helichrysum forsythii Humbert (original description)
Helichrysum gracilifolium Humbert accepted as Helichrysum abietifolium subsp. gracilifolium (Humbert) Humbert (original description)
Helichrysum gradatum Humbert (original description)
Helichrysum gymnocephalum (DC.) Humbert (original description)
Helichrysum heterotrichum Humbert (original description)
Helichrysum hirtum Humbert (original description)
Helichrysum isalense Humbert (original description)
Helichrysum manopappoides Humbert (original description)
Helichrysum minutiflorum Humbert (original description)
Helichrysum mirabile Humbert (original description)
Helichrysum myriocephalum Humbert (original description)
Helichrysum perrieri Humbert (original description)
Helichrysum sordidum Humbert (original description)
Helichrysum stenocephalum Humbert accepted as Helichrysum heterotrichum Humbert (original description)
Helichrysum stenoclinoides (Baker) Humbert (original description)
Helichrysum stilpnocephalum Humbert (original description)
Helichrysum subglobosum Humbert (original description)
Helichrysum subumbellatum Humbert (original description)
Helichrysum tenue Humbert (original description)
Helichrysum tomentosum Humbert (original description)
Helichrysum translucidum Humbert (original description)
Helichrysum viguieri Humbert (original description)
Humea madagascariensis Humbert accepted as Humeocline madagascariensis (Humbert) Anderb. (original description)
Lactuca rogersii Humbert accepted as Launaea rogersii (Humbert) Humbert & Boulos (original description)
Notonia madagascariensis Humbert accepted as Senecio longiflorus subsp. madagascariensis (Humbert) G.D.Rowley (original description)
Pluchea aphanantha (Baker) Humbert (original description)
Pluchea bojeri (DC.) Humbert (original description)