• Cyathea J.E. Smith, 1793
• Cyathea andina (Karst.) Domin
• Cyathea annulata Cookson, 1957 †
• Cyathea aquilina (Christ) Domin accepted as Cyathea parvula (Jenman) Domin
• Cyathea araneosa Maxon accepted as Cyathea woodwardioides Kaulf.
• Cyathea arborea (L.) Sm.
• Cyathea armata (Sw.) Domin
• Cyathea balanocarpa D.C. Eaton
• Cyathea borinquena (Maxon) Domin
• Cyathea brittoniana Maxon accepted as Cyathea tenera (J. Sm. ex Hook.) T. Moore
• Cyathea brooksii Maxon accepted as Alsophila brooksii (Maxon) R. Tryon
• Cyathea bryophila (R. Tryon) Proctor accepted as Alsophila bryophila R. Tryon
• Cyathea cooperi (Hook. ex F. Muell.) Domin
• Cyathea cubensis Underw. ex Maxon
• Cyathea dryopteroides Maxon accepted as Alsophila amintae Conant
• Cyathea elegans Heward accepted as Cyathea grevilleana Mart.
• Cyathea escuquensis (Karst.) Domin accepted as Cyathea andina (Karst.) Domin
• Cyathea furfuracea Baker
• Cyathea grandifolia Willd.
• Cyathea grevilleana Mart.
• Cyathea horrida (L.) Sm. accepted as Cnemidaria horrida (L.) K. Presl
• Cyathea insignis D.C. Eaton
• Cyathea obtusa (Kaulf.) Domin
• Cyathea parvula (Jenman) Domin
• Cyathea portoricensis Spreng. ex Kuhn accepted as Alsophila portoricensis (Spreng. ex Kuhn) Conant
• Cyathea pungens (Willd.) Domin
• Cyathea spectabilis (Kunze) Domin
• Cyathea tenera (J. Sm. ex Hook.) T. Moore
• Cyathea tenuis Brause
• Cyathea villosus
• Cyathea wilsonii (Hook.) Domin
• Cyathea woodwardioides Kaulf.
• Cyatheaceae Kaulfuss, 1827
• Cyatheacidites I.C. Cookson ex R. Potonié, 1956 †
• Cyatheacidites annulatus Cookson, 1947 †
• Cyatheales
• Cyatheales (awaiting allocation) (temporary name)