| Forced plumes BR Morton Journal of Fluid mechanics 5 (1), 151-163, 1959 | 732 | 1959 |
| The genera, subgenera, and sections of the Hymenophyllaceae CV Morton Contributions from the United States National Herbarium 38 (5), 153-214, 1968 | 145 | 1968 |
| Studies of fern types, II CV Morton Contributions from the United States National Herbarium 38 (6), 215-281, 1973 | 125 | 1973 |
| A revision of the Argentine species of Solanum CV Morton Córdoba: Academia Nacional de Ciencias,, 1976 | 109 | 1976 |
| The American Species of Hymenophyllum, Section Sphaerocionium CV Morton Systematic Plant Studies, 1947 | 58 | 1947 |
| Taxonomic studies of tropical American plants CV Morton Systematic Plant Studies, 1944 | 57* | 1944 |
| The Polypodiaceae subfamily Asplenioideae in Venezuela. CV Morton Mem. New York Bot. Gard. 15, 1-49, 1966 | 52 | 1966 |
| Studies of fern types, I CV Morton Contributions from the United States National Herbarium 38 (2), 29-83, 1967 | 50 | 1967 |
| The classification of Thelypteris CV Morton American Fern Journal 53 (4), 149-154, 1963 | 47 | 1963 |
| The genus Grammitis in Ecuador CV Morton Contributions from the United States National Herbarium 38 (3), 85-123, 1967 | 45 | 1967 |
| Flora del Auyan-tepui JA Steyermark, F DROUET, M FULFORD, H ROBINSON, DD LELLINGER, ... Acta Botánica Venezuelica 2 (5/8), 5-370, 1967 | 44 | 1967 |
| Notes on yagé, a drug plant of southeastern Colombia CV Morton Journal of the Washington Academy of Sciences 21 (20), 485-488, 1931 | 41 | 1931 |
| William Roxburgh's fern types CV Morton Contributions from the United States National Herbarium 38 (7), 283-396, 1974 | 35 | 1974 |
| A revision of Besleria CV Morton Systematic plant studies: mainly tropical America, 1939 | 31 | 1939 |
| Pteridophyta WR Maxon, CV Morton Torrey Botanical Club, 1948 | 27 | 1948 |
| The Mexican and central American species of Viburnum CV Morton Systematic plant studies: mainly tropical America, 1933 | 27 | 1933 |
| A typification of some subfamily, sectional, and subsectional names in the family malpighiacae CV Morton Taxon 17 (3), 314-324, 1968 | 25 | 1968 |
| Observations on cultivated ferns. V. The species and forms of Nephrolepis CV Morton American fern journal 48 (1), 18-27, 1958 | 25 | 1958 |
| The American species of Dryopteris, subgenus Meniscium WR Maxon, CV Morton Bulletin of the Torrey Botanical Club, 347-376, 1938 | 22 | 1938 |
| Gesneriaceae CV Morton éditeur non identifié, 1957 | 21 | 1957 |
