K. U. Kramer

1.1k total citations
32 papers, 792 citations indexed

About

K. U. Kramer is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Molecular Biology. According to data from OpenAlex, K. U. Kramer has authored 32 papers receiving a total of 792 indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Ecology, Evolution, Behavior and Systematics, 18 papers in Plant Science and 3 papers in Molecular Biology. Recurrent topics in K. U. Kramer's work include Fern and Epiphyte Biology (19 papers), Plant Diversity and Evolution (19 papers) and Botany and Plant Ecology Studies (11 papers). K. U. Kramer is often cited by papers focused on Fern and Epiphyte Biology (19 papers), Plant Diversity and Evolution (19 papers) and Botany and Plant Ecology Studies (11 papers). K. U. Kramer collaborates with scholars based in United States, Switzerland and Netherlands. K. U. Kramer's co-authors include K. Kubitzki, Rudolf Schmid, David B. Lellinger, Masahiro Kato, Theodorus W. J. Gadella, E. Kliphuis, L.Y.Th. Westra, J. Dostál, Gustav Hegi and T. Reichstein and has published in prestigious journals such as Journal of Biogeography, Taxon and Annals of the Missouri Botanical Garden.

In The Last Decade

K. U. Kramer

27 papers receiving 708 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
K. U. Kramer United States	12	712	197	196	65	43	32	792
Clair A. Brown United States	9	298 0.4×	191 1.0×	137 0.7×	61 0.9×	39 0.9×	16	447
Uzi Plitmann Israel	17	443 0.6×	441 2.2×	206 1.1×	122 1.9×	15 0.3×	41	672
C. N. Page United Kingdom	10	297 0.4×	214 1.1×	122 0.6×	108 1.7×	11 0.3×	29	435
Georges Cremers France	11	330 0.5×	158 0.8×	90 0.5×	85 1.3×	16 0.4×	58	437
Mike Thiv Germany	14	428 0.6×	260 1.3×	262 1.3×	63 1.0×	36 0.8×	34	580
P. M. Jørgensen Norway	6	250 0.4×	205 1.0×	74 0.4×	48 0.7×	62 1.4×	17	402
R. Knapp China	12	329 0.5×	137 0.7×	100 0.5×	95 1.5×	29 0.7×	35	465
Benton M. Stidd United States	16	546 0.8×	243 1.2×	190 1.0×	51 0.8×	13 0.3×	40	617
John T. Mickel United States	19	1.4k 2.0×	334 1.7×	167 0.9×	99 1.5×	135 3.1×	82	1.5k
Kay Yatskievych	4	427 0.6×	140 0.7×	166 0.8×	82 1.3×	10 0.2×	7	555

Countries citing papers authored by K. U. Kramer

Since Specialization

Citations

This map shows the geographic impact of K. U. Kramer's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by K. U. Kramer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites K. U. Kramer more than expected).

Fields of papers citing papers by K. U. Kramer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K. U. Kramer. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by K. U. Kramer. The network helps show where K. U. Kramer may publish in the future.

Co-authorship network of co-authors of K. U. Kramer

This figure shows the co-authorship network connecting the top 25 collaborators of K. U. Kramer. A scholar is included among the top collaborators of K. U. Kramer based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with K. U. Kramer. K. U. Kramer is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Lellinger, David B., Georges Cremers, K. U. Kramer, Robbin C. Moran, & A. R. Smith. (1995). Flora of the Guianas, Series B, Fascicle 6: Dryopteridaceae, Nephrolepidaceae, Oleandraceae, Thelypteridaceae. American Fern Journal. 85(3). 98–98. 1 indexed citations

Kramer, K. U.. (1993). An overlooked species of Pteris [ Pteridaceae ] from La Reunion, with a key to the species of the island. 2(1).

Kato, Masahiro & K. U. Kramer. (1990). Taxonomic Studies of Pteridophytes of Ambon and Seram (Moluccas) Collected by Indonesian-Japanese Botanical Expeditions : VI. Pteridaceae. 41. 155–168. 8 indexed citations

Kramer, K. U., et al.. (1990). The families and genera of vascular plants. V. 1: Pteridophytes and gymnosperms. 192 indexed citations

Kramer, K. U., et al.. (1988). Pseudophegopteris (Thelypteridaceae) in Fiji, a new record and a new species. Blumea - Biodiversity Evolution and Biogeography of Plants. 33(2). 423–426. 3 indexed citations

Schmid, Rudolf, Gerhard Wagenitz, K. U. Kramer, et al.. (1987). Gustav Hegi's Illustrierte Flora von Mitteleuropa, Bd. 1, Pteridophyta, Spermatophyta, 3. Aufl., Tl. 1, Pteridophyta. Taxon. 36(4). 777–777. 12 indexed citations

Lellinger, David B. & K. U. Kramer. (1979). The Pteridophytes of Suriname. American Fern Journal. 69(3). 70–70. 14 indexed citations

Kramer, K. U.. (1978). The pteridophytes of Suriname : an enumeration with keys of the ferns and fern-allies. Medical Entomology and Zoology. 12 indexed citations

Kramer, K. U.. (1977). Synaptospory: a hypothesis. A possible function of spore sculpture in pteridophytes. Biodiversity Heritage Library (Smithsonian Institution). 8 indexed citations

10.

Kramer, K. U., L.Y.Th. Westra, E. Kliphuis, & Theodorus W. J. Gadella. (1972). FLORISTIC AND CYTOTAXONOMIC NOTES ON THE FLORA OF THE MALTESE ISLANDS. Acta Botanica Neerlandica. 21(1). 54–66. 13 indexed citations

11.

Kramer, K. U.. (1970). The Lindsaeoid ferns of the Old World V. The smaller Pacific islands. Blumea - Biodiversity Evolution and Biogeography of Plants. 18(1). 157–194. 16 indexed citations

12.

Kramer, K. U.. (1969). TWO NEW SPECIES OF FERNS FROM SURINAME*. Acta Botanica Neerlandica. 18(1). 138–142. 1 indexed citations

13.

Kramer, K. U., T. G. Tütin, V. H. Heywood, et al.. (1969). Flora Europaea. Taxon. 18(3). 329–329.

14.

Kramer, K. U., et al.. (1968). A sketch of the vegetation and flora of the Kappel Savanna near Tafelberg, Suriname. I. Data Archiving and Networked Services (DANS). 309(1). 495–510. 4 indexed citations

15.

Kramer, K. U.. (1967). The Lindsaeoid ferns of the Old World II. A revision of Tapeinidium. Blumea - Biodiversity Evolution and Biogeography of Plants. 15(2). 545–556. 8 indexed citations

16.

Kramer, K. U.. (1967). The Lindsaeoid ferns of the Old World III. Notes on Lindsaea and Sphenomeris in the Flora Malesiana Area. Blumea - Biodiversity Evolution and Biogeography of Plants. 15(2). 557–574. 14 indexed citations

17.

Kramer, K. U.. (1967). Pteryx or pteris?. Taxon. 16(3). 239–239. 2 indexed citations

18.

Kramer, K. U., et al.. (1966). THE LINDSAEOID FERNS OF THE OLD WORLD I. NEW CALEDONIA. Acta Botanica Neerlandica. 15(3). 562–584. 8 indexed citations

19.

Kramer, K. U.. (1960). NOTES ON THE PTERIDOPHYTES OF THE DUTCH WEST INDIES. Acta Botanica Neerlandica. 9(3). 297–301.

20.

Kramer, K. U.. (1954). A CONTRIBUTION TO THE FERN FLORA OF FRENCH GUIANA. Acta Botanica Neerlandica. 3(4). 481–494. 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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