Class information for:
Level 2: AMERICAN FERN JOURNAL//FERNS//PTERIDOPHYTES

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
2518 3826 34.1 33%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
3 4 PLANT SCIENCES//AGRONOMY//FOOD SCIENCE & TECHNOLOGY 1882812
69 3       PLANT SCIENCES//EVOLUTIONARY BIOLOGY//AMERICAN JOURNAL OF BOTANY 83717
2518 2             AMERICAN FERN JOURNAL//FERNS//PTERIDOPHYTES 3826
2655 1                   AMERICAN FERN JOURNAL//FERNS//PTERIDOPHYTES 2183
17297 1                   FERN GAMETOPHYTE//CERATOPTERIS//GAMETOPHYTE 607
17500 1                   PHYLLOTAXIS//LAMINA ROTATION//PHYLLOTACTIC TRANSITIONS 596
25384 1                   ISOETES//ISOETACEAE//QUILLWORT 283
31179 1                   NORANTEA//SCHWARTZIA//RUYSCHIA 157

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 AMERICAN FERN JOURNAL journal 3178389 14% 76% 522
2 FERNS authKW 840672 6% 45% 235
3 PTERIDOPHYTES authKW 502115 4% 43% 145
4 FERN authKW 384070 4% 34% 140
5 DRYOPTERIDACEAE authKW 371358 2% 73% 64
6 PTERIDOPHYTA authKW 323285 2% 51% 79
7 GAMETOPHYTE authKW 312569 3% 32% 123
8 PRINGLE HERBARIUM address 295228 1% 100% 37
9 ISOETES authKW 261801 1% 75% 44
10 PHYLLOTAXIS authKW 254883 2% 46% 69

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 Plant Sciences 125864 78% 1% 2995
2 Evolutionary Biology 7762 10% 0% 372
3 Biology 925 5% 0% 194
4 Ecology 434 5% 0% 187
5 Mathematical & Computational Biology 415 2% 0% 85
6 Biodiversity Conservation 178 1% 0% 49
7 Horticulture 114 1% 0% 44
8 Genetics & Heredity 68 3% 0% 126
9 Paleontology 64 1% 0% 28
10 Forestry 13 1% 0% 24

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 PRINGLE HERBARIUM 295228 1% 100% 37
2 CATEDRA PALINOL 227952 1% 71% 40
3 UNIV HERBARIUM 206914 2% 41% 63
4 CATEDRA MORFOL VEGETAL 123646 1% 50% 31
5 BIOL VEGETAL 1 53486 1% 18% 37
6 ABT SYSTEMAT BOT 51911 1% 26% 25
7 AREA BOT ESTRUCT SISTEMAT VEGETAL 46159 0% 64% 9
8 SECAO BRIOL PTERIDOL 41034 0% 86% 6
9 HERBARIO MCNS 39094 0% 70% 7
10 ECOL FONDAMENTALE PL 31917 0% 100% 4

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 AMERICAN FERN JOURNAL 3178389 14% 76% 522
2 AMERICAN JOURNAL OF BOTANY 58722 6% 3% 231
3 BRITTONIA 46705 2% 6% 95
4 SYSTEMATIC BOTANY 40891 3% 5% 107
5 PHYTOTAXA 21045 2% 3% 87
6 PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION B-BIOLOGICAL SCIENCES 20256 1% 7% 39
7 BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 18925 2% 3% 83
8 BLUMEA 17802 1% 5% 43
9 ADANSONIA 17329 1% 9% 23
10 BOTANICAL MAGAZINE-TOKYO 15785 1% 6% 31

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 FERNS 840672 6% 45% 235 Search FERNS Search FERNS
2 PTERIDOPHYTES 502115 4% 43% 145 Search PTERIDOPHYTES Search PTERIDOPHYTES
3 FERN 384070 4% 34% 140 Search FERN Search FERN
4 DRYOPTERIDACEAE 371358 2% 73% 64 Search DRYOPTERIDACEAE Search DRYOPTERIDACEAE
5 PTERIDOPHYTA 323285 2% 51% 79 Search PTERIDOPHYTA Search PTERIDOPHYTA
6 GAMETOPHYTE 312569 3% 32% 123 Search GAMETOPHYTE Search GAMETOPHYTE
7 ISOETES 261801 1% 75% 44 Search ISOETES Search ISOETES
8 PHYLLOTAXIS 254883 2% 46% 69 Search PHYLLOTAXIS Search PHYLLOTAXIS
9 POLYPODIACEAE 229361 1% 50% 57 Search POLYPODIACEAE Search POLYPODIACEAE
10 ELAPHOGLOSSUM 225522 1% 91% 31 Search ELAPHOGLOSSUM Search ELAPHOGLOSSUM

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 SCHUETTPELZ, E , SCHNEIDER, H , SMITH, AR , HOVENKAMP, P , PRADO, J , ROUHAN, G , SALINO, A , SUNDUE, M , ALMEIDA, TE , PARRIS, B , ET AL (2016) A COMMUNITY-DERIVED CLASSIFICATION FOR EXTANT LYCOPHYTES AND FERNS.JOURNAL OF SYSTEMATICS AND EVOLUTION. VOL. 54. ISSUE 6. P. 563 -603 187 89% 0
2 CHRISTENHUSZ, MJM , ZHANG, XC , SCHNEIDER, H , (2011) A LINEAR SEQUENCE OF EXTANT FAMILIES AND GENERA OF LYCOPHYTES AND FERNS.PHYTOTAXA. VOL. 19. ISSUE . P. 7 -54 119 89% 148
3 ALMEIDA, TE , SALINO, A , (2016) STATE OF THE ART AND PERSPECTIVES ON NEOTROPICAL FERN AND LYCOPHYTE SYSTEMATICS.JOURNAL OF SYSTEMATICS AND EVOLUTION. VOL. 54. ISSUE 6. P. 679 -690 104 81% 1
4 SMITH, AR , PRYER, KM , SCHUETTPELZ, E , KORALL, P , SCHNEIDER, H , WOLF, PG , (2006) A CLASSIFICATION FOR EXTANT FERNS.TAXON. VOL. 55. ISSUE 3. P. 705 -731 71 79% 547
5 XIANG, JY , WEN, J , PENG, H , (2015) EVOLUTION OF THE EASTERN ASIAN-NORTH AMERICAN BIOGEOGRAPHIC DISJUNCTIONS IN FERNS AND LYCOPHYTES.JOURNAL OF SYSTEMATICS AND EVOLUTION. VOL. 53. ISSUE 1. P. 2 -32 91 69% 7
6 LIU, HM , (2016) EMBRACING THE PTERIDOPHYTE CLASSIFICATION OF REN-CHANG CHING USING A GENERIC PHYLOGENY OF CHINESE FERNS AND LYCOPHYTES.JOURNAL OF SYSTEMATICS AND EVOLUTION. VOL. 54. ISSUE 4. P. 307 -335 78 81% 1
7 SIGEL, EM , (2016) GENETIC AND GENOMIC ASPECTS OF HYBRIDIZATION IN FERNS.JOURNAL OF SYSTEMATICS AND EVOLUTION. VOL. 54. ISSUE 6. P. 638 -655 97 63% 1
8 CHRISTENHUSZ, MJM , CHASE, M , (2014) TRENDS AND CONCEPTS IN FERN CLASSIFICATION.ANNALS OF BOTANY. VOL. 113. ISSUE 4. P. 571 -594 54 89% 42
9 SCHUETTPELZ, E , PRYER, KM , (2007) FERN PHYLOGENY INFERRED FROM 400 LEPTOSPORANGIATE SPECIES AND THREE PLASTID GENES.TAXON. VOL. 56. ISSUE 4. P. 1037-1050 66 83% 182
10 LIU, HM , WANG, L , ZHANG, XC , ZENG, H , (2008) ADVANCES IN THE STUDIES OF LYCOPHYTES AND MONILOPHYTES WITH REFERENCE TO SYSTEMATIC ARRANGEMENT OF FAMILIES DISTRIBUTED IN CHINA.JOURNAL OF SYSTEMATICS AND EVOLUTION. VOL. 46. ISSUE 6. P. 808 -+ 81 86% 1

Classes with closest relation at Level 2


Rank Class id link
1 1830 REVIEW OF PALAEOBOTANY AND PALYNOLOGY//PALEONTOLOGY//PALEOBOT
2 3463 PREMNA TOMENTOSA//EQUISETUM ARVENSE//PTERIS SEMIPINNATA L
3 608 POLYPLOIDY//PLANT SCIENCES//GENOME SIZE
4 2033 JOURNAL OF BRYOLOGY//BRYOLOGIST//CRYPTOGAMIE BRYOLOGIE
5 642 PLANT SCIENCES//BLUMEA//BRITTONIA
6 3360 PTERIDIUM AQUILINUM//BRACKEN//EQUINE SARCOID
7 3904 WALT WHITMAN QUARTERLY REVIEW//WALT WHITMAN REVIEW//COLLINGWOOD
8 135 PLANT SCIENCES//ARABIDOPSIS//PLANT CELL
9 2289 PHYTOCHROME//PHOTOTROPIN//PHOTOMORPHOGENESIS
10 4125 CERATONIA SILIQUA//CAROB//CERATONIA SILIQUA L

Go to start page