Re-examination of Type Specimens of Ferns and Lycophytes Described by Junichi Sugimoto

抄録

Junichi Sugimoto (1901–1988) described several new taxa of ferns and lycophytes, but their type specimens and nomenclatural status have remained insufficiently investigated. The postwar Sugimoto Collection, representing the principal surviving portion of his herbarium and now housed in the Museum of Natural Environmental History, Shizuoka, was examined to reassess all nine fern and lycophyte taxa described by him. Holotypes were identified for four taxa for which type specimens were explicitly cited in the original descriptions. In contrast, five taxa published after January 1, 1958 lacked citation of a type specimen and are therefore regarded as not validly published under Article 40.1 of the International Code of Nomenclature for algae, fungi, and plants (Madrid Code). Most taxa are currently treated as synonyms, although Anisocampium × saitoanum is accepted as the correct name for an interspecific hybrid. These results clarify the typification and nomenclatural status of Sugimoto’s taxa and highlight the scientific value of the Sugimoto Collection for future studies of Japanese ferns and lycophytes.