• Cucurbita Jablonsky, 1973 † [Family: Milioliporidae]
• Cucurbita Linnaeus, 1753 [Family: Cucurbitaceae]
• Cucurbita Scudder, 1882 (unaccepted > nomen nudum) [Family: Mollusca (awaiting allocation)]
• Cucurbita andreana Naudin accepted as Cupressus macnabiana A. Murr.
• Cucurbita californica Torr. ex S. Wats. accepted as Cucurbita palmata S. Wats.
• Cucurbita digitata Gray
• Cucurbita ficifolia Bouche
• Cucurbita foetidissima Kunth
• Cucurbita lagenaria Linnaeus accepted as Lagenaria siceraria (Molina) Standl.
• Cucurbita maxima Duchesne
• Cucurbita mixta Pang.
• Cucurbita moschata (Duchesne ex Lam.) Duchesne ex Poir.
• Cucurbita okeechobeensis (Small) Bailey
• Cucurbita ovifera Linnaeus accepted as Cucurbita pepo Linnaeus
• Cucurbita palmata S. Wats.
• Cucurbita pepo Linnaeus
• Cucurbita siceraria Molina accepted as Lagenaria siceraria (Molina) Standl.
• Cucurbita texana Scheele accepted as Cucurbita pepo Linnaeus
• Cucurbitaceae de Jussieu, 1789
• Cucurbitales
• Cucurbitaria Gray, 1821
• Cucurbitaria acervata (Fr.) Fr., 1849
• Cucurbitaria aspegrenii (Fr.) Cooke accepted as Melanomma aspegrenii (Fr.) Fuckel, 1870
• Cucurbitaria aspegrenii Ces. & De Not., 1863
• Cucurbitaria berberidis (Pers.) Grev., 1821
• Cucurbitaria bicolor Fuckel, 1871
• Cucurbitaria cinnabarina (Tode) Grev., 1825 accepted as Nectria cinnabarina (Tode) Fr., 1849
• Cucurbitaria coccinea (Pers.) Gray, 1821 accepted as Nectria coccinea (Pers.) Fr., 1849
• Cucurbitaria conglobata (Fr.) Ces. & De Not., 1863 accepted as Melanomma pulvis-pyrius (Pers.) Fuckel, 1870
• Cucurbitaria conorum (Fuckel) Petr., 1940 accepted as Anthostomella conorum (Fuckel) Sacc., 1882
• Cucurbitaria cupularis (Pers.) Gray accepted as Nitschkia cupularis (Pers.) P. Karst., 1873
• Cucurbitaria dioica (Moug.) Cooke accepted as Leptosphaeria dioica (Moug.) Sacc., 1883
• Cucurbitaria dulcamarae (Kunze & J.C. Schmidt) Fr., 1849
• Cucurbitaria elongata (Fr.) Grev., 1826
• Cucurbitaria euonymi Cooke, 1874
• Cucurbitaria homalea (Fr.) Sacc., 1883
• Cucurbitaria ignavis De Not., 1863 accepted as Teichospora ignavis (De Not.) P. Karst., 1871
• Cucurbitaria laburni (Pers.) De Not., 1862
• Cucurbitaria laurocerasi W. Phillips & Plowr., 1881
• Cucurbitaria macrospora (Desm.) Tul. & C. Tul. accepted as Asteromassaria macrospora (Desm.) Höhn., 1917
• Cucurbitaria minor (Tul. & C. Tul.) Chernetsk., 1929 accepted as Fenestella minor Tul. & C. Tul., 1863
• Cucurbitaria morbosa (Schwein.) Ellis, 1881 accepted as Apiosporina morbosa (Schwein.) Arx, 1954
• Cucurbitaria naucosa (Fr.) Fuckel, 1870
• Cucurbitaria nigrella Rabenh., 1873 accepted as Pleospora pellita (Fr.) Sacc., 1880
• Cucurbitaria obducens (Schumach.) Petr., 1927
• Cucurbitaria papaveracea De Not., 1863 accepted as Pleospora papaveracea (De Not.) Sacc., 1883
• Cucurbitaria piceae Borthw., 1909
• Cucurbitaria pithyophila (J.C. Schmidt & Kunze) De Not. accepted as Curreya pityophila (J.C. Schmidt & Kunze) Arx & E. Müll., 1975
• Cucurbitaria pithyophila (J.C. Schmidt & Kunze) De Not., 1862 accepted as Curreya pityophila (J.C. Schmidt & Kunze) Arx & E. Müll., 1975
• Cucurbitaria populina (Pers.) anon. ined. accepted as Cryptosphaeria ligniota (Fr.) Auersw., 1874
• Cucurbitaria pteridis Rabenh., 1857 accepted as Cryptomycina pteridis (Rebent.) Höhn., 1918
• Cucurbitaria quercus (Fuckel) Sacc. accepted as Diaporthe eres Nitschke, 1870
• Cucurbitaria rhamni (Nees) Fuckel, 1869
• Cucurbitaria ribis Niessl, 1872
• Cucurbitaria rubefaciens Petr., 1923
• Cucurbitaria sorbi P. Karst., 1873
• Cucurbitaria spartii (Nees) Ces. & De Not., 1863 accepted as Montagnula spartii (Castagne) Aptroot, 1995
• Cucurbitaria spiraearum Fuckel, 1864 accepted as Otthia spiraeae (Fuckel) Fuckel, 1870
• Cucurbitaria squamulosa (Ellis) Kuntze, 1898 accepted as Nectriopsis squamulosa (Ellis) Samuels, 1988
• Cucurbitaria staphula Dearn. ex R.H. Arnold & R.C. Russell, 1961
• Cucurbitaria syringae (Niessl ex Sacc.) Cooke & Plowr. accepted as Otthia spiraeae (Fuckel) Fuckel, 1870
• Cucurbitaria truncata (Ellis) Kuntze, 1898 accepted as Nectria truncata Ellis, 1883
• Cucurbitaria urceolus (Speg.) Kuntze, 1898 accepted as Nectria urceolus Speg., 1879
• Cucurbitaria vulgaris (Speg.) Kuntze, 1898 accepted as Bionectria ochroleuca (Schwein.) Schroers & Samuels, 1997
• Cucurbitariaceae
• Cucurbitariaceites R.K. Kar, R.Y. Singh & S.C.D. Sah, 1972 †
• Cucurbitariella Petrak, 1917 accepted as Coniochaeta (P.A. Saccardo) M.C. Cooke, 1887
• Cucurbitariopsis C. Massalongo, 1889 accepted as Rhabdospora (Durieu de Maisonneuve & Montagne ex P.A. Saccardo) P.A. Saccardo, 1884 [Phylum: Ascomycota]
• Cucurbitariopsis R. Beck, 1882 † (uncertain) [Phylum: Fungi (awaiting allocation)]
• Cucurbitariopsis Vassilkov, 1960 accepted as Cucurbitaria Gray, 1821 [Phylum: Ascomycota]