Taxonomic Study of the Carex tenera Group (Cyperaceae)

  title={Taxonomic Study of the Carex tenera Group (Cyperaceae)},
  author={Paul E. Rothrock and Anton A. Reznicek and Andrew L. Hipp},
Abstract According to previous molecular study, the Carex tenera group sensu lato consists of C. tenera s. l. and C. normalis in one clade and C. festucacea, C. oronensis, and C. tincta in a sister clade. We found that Carex tincta, clarified by thorough review of herbarium materials, has a much narrower geographic range than previously thought, centering on Maine (U. S. A.), adjacent states, and adjacent portions of Canada with rare scattered occurrences to western Lake Superior. Carex… 

Meiotic chromosome numbers of five Carex taxa in Korea (Cyperaceae)

The findings with regard to chromosome number diversity in Carex suggest that chromosome number variation (aneuploidsy, agmatoploidy and/or symploidy) plays an important role in the richness of the species in the genus.

Report on the chromosome numbers of four Carex taxa in Korea (Cyperaceae)

This report updates the chromosome number inventory on Korean Carex to 24 out of 180 taxa, and reports the meiotic chromosome numbers of four Carex taxa from Korean populations.

Revealing a Significant Center of Sedge Diversity: Carex (Cyperaceae) of Jackson County, Alabama, U.S.A.

Abstract. Jackson County is the northeasternmost county of Alabama, U.S.A., and falls entirely in the southern portion of the Appalachian Plateaus physiographic province. Based on multiple years of

Cytological Studies on Seven Species of Korean Carex (Cyperaceae)

This paper presents a monograph on the phytochemical properties of cannabis and its applications in the biosphere and geosphere.

Training the Next Generation of Sedge Taxonomists: School Kids Tackle Sedge Morphological Diversity

The hands on approach that the project took in this project is considered to be a fruitful means of developing local collaborations that increase students' and teachers' understanding of the research process and plant biodiversity.

Redécouverte du Carex echinodes (Cyperaceae) sur le territoire québécois

Carex echinodes (Fernald) P.E. Rothr., Reznicek & Hipp, inclus dans la section des Ovales Kunth, est une espece difficile a distinguer des 2 autres especes de carex du « complexe du C. tenera ». Il a

Cytological Investigations on Eight Carex Species in Korea (Cyperaceae)

Somatic or meiotic chromosome numbers of eight Carex taxa from the Korean Peninsula are reported, including first counts for C. macrandrolepis H. Lév.

Chromosome numbers of Carex section Siderostictae from Korea populations (Cyperaceae)

This study is the first chromosome number report for the species C. ciliatomarginata from Korean populations, and the observation supports the hypothesis that small numbers of large chromosomes have been hypothesized as primitive characters in Cariceae, and further investigations of chromosomes in Carex are needed.


We report on the construction of a database of essentially all vascular plant specimens from northeast Wyoming and South Dakota west of the Missouri River. The database is the result of a compilation



Taxonomy of the Carex straminea complex (Cyperaceae)

Numerical analysis showed that characters of the inflorescence and perigynium are satisfactory for separating C. straminea from Carex hormathodes, a species limited to the Atlantic coast, and characters of inflorescence, pistillate scale, and perIGynium could clearly separate the geographically widespread Carex alata from the Florida endemic species Carex vexans.

The Taxonomy of the Carex bicknellii Group (Cyperaceae) and New Species for Central North America

The eastern North American species Carex bicknellii is found to be a complex of four spe- cies, and two new species are described, C. missouriensis and C. shinnersii, which differ in characters of the anther, achene, and perigynium.

Phylogeny and Classification of Carex Section Ovales (Cyperaceae)

Developing a comprehensive infrasectional classification with a phylogenetic basis would be complicated by the fact that most of the novel morphological characters in the section have evolved within relatively small, independent clades.

Chromosome Number Changes Associated with Speciation in Sedges: a Phylogenetic Study in Carex section Ovales (Cyperaceae) Using AFLP Data

Phylogenetic analysis of amplified fragment length polymorphisms (AFLP) was used to infer patterns of morphologic and chromosomal evolution in an eastern North American group of sedges (ENA clade I

Additions to the Genus Carex in Michigan

During the ten years that have elapsed since the publication of a paper on "The Genus Carex in Michigan," exploration within the State for sedges has been quite active, resulting in the addition of many cotmty records, including appreciable range extensions for several species.

Taxonomy, Ecology, and Biogeography of Carex Section Ovales in Indiana

The most recent treatment of Carex section Ovales for Indiana dates to Deam’s 1940 “Flora of Indiana” and is based upon a thorough review of herbarium material and recent field studies, increasing the number of taxa in the state from 17 to 20.

A new species of Carex section Ovales (Cyperaceae) occurring in the Ozark Mountain region

A new species from Arkansas, Oklahoma, and extreme northeasternmost Texas, it is a distinctive regional endemic of mineral soil wetlands most similar to the widespreadCarex albolutescens andC.

Data from amplified fragment length polymorphism (AFLP) markers show indication of size homoplasy and of a relationship between degree of homoplasy and fragment size

Results from population samples of the two plant species show that there is a negative relationship between AFLP fragment size and fragment population frequency, and Monte Carlo simulations reveal that size homoplasy, arising from pulling together nonhomologous fragments of the same size, generates patterns similar to those observed in P. lunatus and L. perenne.

AFLP: a new technique for DNA fingerprinting.

The AFLP technique provides a novel and very powerful DNA fingerprinting technique for DNAs of any origin or complexity that allows the specific co-amplification of high numbers of restriction fragments.

Mathematical model for studying genetic variation in terms of restriction endonucleases.

  • M. NeiW. Li
  • Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 1979
A mathematical model for the evolutionary change of restriction sites in mitochondrial DNA is developed and a measure called "nucleotide diversity" is proposed to express the degree of polymorphism in a population at the nucleotide level.