Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 43 for “"Cyperaceae"”.
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Systematics of Ficinia clade (Cyperaceae)
Cyperaceae is a cosmopolitan graminoid family comprising about 110 genera and over 5500 species, represented in Southern Africa by 30 genera and over 500 species. The family is an integral part of wetland and grassland vegetations, a number of species have various local uses, and several species …
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The Cyperaceae of Michigan, exclusive of Carex
Thesis (M.S.)--Michigan State College of Agriculture and Applied Science. Dept. of Botany, 1951
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Phylogenetic inference and macro-evolutionary patterns in Ficinia Schrad. (Cyperaceae)
… representing a gap in the body of work on the Cyperaceae. Phylogenetic analyses provide strong support for the sister relationship between Isolepis and Ficinia in both parsimony and Bayesian analyses (BP = 96; PP = 1). Isolepis marginata consistently resolved as more closely related to the …
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Cyperaceae tribe Cyperae : phylogenetic relationships and evolutionary patterns of diagnostic characters
… and allied genera in the tribe Cypereae (family Cyperaceae) have been reconstructed using parsimony and Bayesian analyses of a combined data matrix, which consisted of plastid DNA (rbcL, trnL-F intergenic spacer, and rps16), nuclear ribosomal DNA (internal transcribed spacer ITS) sequences and …
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Phylogeny reconstruction of the Schoeneae (Cyperaceae) with a focus on southern African genera
In this study both plastid and nuclear DNA sequences (rbcL, trnL-trnF, rps16, ITS and ETS) were analysed. New sequences were added to the matrix from Verboom (2006). Parsimony method was used for phylogeny reconstruction. Morphological characters were then optimised on the parsimony tree using both …
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Isolepis R.Br. (Cyperaceae) revisited : a phylogeny based on plastid and nuclear ribosomal DNA data
The approximately 75 species of Isolepis R Br. are currently described as annual or short lived perennials with predominantly terete spikelet's
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Biogeography of Isolepis subgenus Fluitantes (C.B. Clarke), Muasya (Cyperaceae): niche conservatism, long distance dispersal and hybridization
… dispersal. The Fluitantes clade of lsolepis (Cyperaceae: Cypereae) is distributed throughout these areas and provides a useful study group to assess the general validity of published biogeographical trends. Furthermore, the cooccurrence of several closely related species in the Cape floristic …
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A comparative study of the distribution of C₃ and C₄ species of Cyperaceae in South Africa in relation to climate
… of the distribution of C₃ and C₄ genera of Cyperaceae in South Africa has been investigated. Multiple regression analysis was used to determine the climatic factor that best predicted percent C₄ distribution. To see if the C₄ syndrome was influenced by taxonomy, the percentages of C₄ species …
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Examining patterns of coexistence in the Cape genus Tetraria (Cyperaceae) from a phylogenetic perspective : tracing the history of community assembly processes
… and ecological divergence in the genus Tetraria (Cyperaceae), and related sedges in the tribe Schoeneae, at different spatial and phylogenetic scales in multiple communities across the Cape Fynbos Biome. The investigation is based on coexistence data inferred from plot data from 13 …
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A systematic study of the South African genus Prionium (Thurniaceae)
… as sister to the Cyperid families, Juncaceae and Cyperaceae. Sampling for morphological, molecular and ecological studies was done to obtain representatives from its entire distribution range, falling within the phytogeographic regions of the CFR (North West, NW; South West, SW; Agulhas Plain, AP; …
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The embryology of Prionium serratum (L.f.) Drege ex E.Mey. (Juncaceae:Cyperales) and its implications for the phylogeny of Cyperales
… with Prionium basal to Juncaceae plus Cyperaceae within Cyperales in both instances. In addition, Oxychlae is basal to Cyperaceae in the total evidence analysis. The basal placement of Prianium within Cyperales is supported by its woody habit, carpels fused in the ovary region …
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Dinámica poblacional de arvenses en el cultivo de maiz (Zea mays L.) variedad NB-6 bajo los sistemas orgánico y convencional en la finca El Plantel, Tipitapa, Masaya, 2009
… Las monocotiledóneas fueron Poaceae y Cyperaceae, predominando la especie: Ixophorus unicetus Presl. ( Zacate dulce). En el sistema convencional las familia Cyperaceae y Capparidaceae, en ellas predominaron las especies Cyperus rotundus L. (Coyolillo) y Cleome viscosa (L) …
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Plants as biotic indicators of Neogene palaeoenvironmental evolution in the Cape Floristic Region
… flora (Asteraceae, Orchidaceae, Restionaceae, Cyperaceae, Poaceae and Proteaceae) to infer (i) the relative roles of climatic changes and neotectonic uplift in shaping the CFR since the Early Miocene, and to detemine (ii) whether contrasting evolutionary processes (adaptive versus non-adaptive) …
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The vascular flora and species distribution modeling of two rare species in Cloudland Canyon State Park, Dade and Walker Counties, Georgia
… (99 taxa; 14.9%), Poaceae (64; 9.6%), and Cyperaceae (52; 7.8%). Twenty-eight rare species were documented, including 10 S1 and 13 S2 species. Two hundred and thirty-four county records were documented with 209 in Dade County and 25 in Walker County. Concurrently with the floristic …
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Vascular flora and rare plant modeling of the Walls of Jericho Forever Wild Tract, Jackson County, Alabama
… families were Asteraceae (14%), Poaceae (9%) and Cyperaceae (7%). Additionally, we modeled suitable habitat using MaxEnt to survey for two federally listed species; Apios priceana (Fabaceae) and Clematis morefieldii (Ranunculaceae). While no occurrences were found, the model successfully …
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The vascular flora of the North Chickamauga Creek Gorge State Natural Area, Hamilton & Sequatchie Counties, Tennessee
… expectations for Asteraceae, Poaceae, and Cyperaceae.
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