Joseph F. Rock
Austrian-American scientist-explorer · 1884–1962
9,245 specimens, collected between 1892 and 2025 on 682 collecting days, now held in 5 departments. Identified 8 specimens for others.
On the labels as Rock, J.F.C., Rock, Rock, J.F., Joseph F. Rock, J. F. Rock, J.F. Rock, J Rock.
- Specimens
- 9,245
- Type specimens
- 1,246
- Years in the field
- 134
- Islands
- 12
- Species
- 1,585
- Identifications
- 8
- In the Library
- 0
- Named after
- 14
Where Rock collected
Specimens by decade
1890s2020s
Earliest: Codium tomentosum, 1892 (San Francisco). Latest: Ulva expansa, 2025.
Named for Rock
Taxa in the collection whose epithet is formed from the name Rock. The naming author’s intent is not recorded, so where several collectors share a surname they are listed under the best-known one.
- Lipochaeta rockii Asteraceae174
- Euphorbia rockii Euphorbiaceae68
- Dracaena rockii Asparagaceae40
- Brighamia rockii Campanulaceae27
- Tetramolopium rockii Asteraceae24
- Hypotrachyna rockii Parmeliaceae20
- Peperomia rockii Piperaceae10
- Usnea rockii Parmeliaceae5
- Cyperus rockii Cyperaceae4
- Phyllostegia rockii Lamiaceae4
- Ilburnia rocki Delphacidae2
- Tectaria rockii Tectariaceae2
- Trematolobelia rockii Campanulaceae2
- Thelotrema rockii Graphidaceae1
From the field
As a determiner
8 specimens carry this name as the person who identified them. Most often: