2 edition of Taxonomic investigation of the genus Polystichum in western North America found in the catalog.
Taxonomic investigation of the genus Polystichum in western North America
Wagner, David H.
Written in English
|Statement||by David Henry Wagner.|
|The Physical Object|
|Pagination||xiii, 171 l. :|
|Number of Pages||171|
Taxonomy - Taxonomy - Ranks: The goal of classifying is to place an organism into an already existing group or to create a new group for it, based on its resemblances to and differences from known forms. To this end, a hierarchy of categories is recognized. For example, an ordinary flowering plant, on the basis of gross structure, is clearly one of the higher green plants—not a fungus. In New taxa and nomenclatural changes in the North American fern flora. Contr. Univ. Michigan Herb. Wagner, D.H. Systematics of Polystichum in western North America north of Mexico. Pteridologia Wagner, W.H., Jr. Reticulation of holly ferns (Polystichum) in the western United States and adjacent Canada. Amer.
The taxonomy of these two genera has not been discussed due to insufficient molecular data on Anodonta species from North America. Genus Pseudanodonta Bourguignat, Kinds of taxonomic publications,taxonomic review,revision, monograph,atlas,short research papers 1. introduction No taxonomic study is complete until its results have been published. The advances in any area of science are made known through publication, an inseparable part of research. Taxonomic publications range all the way from the short description of a new taxon .
The Lichen Genus Porpidia (Porpidiaceae) in North America SHARON P. GOWAN Department of Botany, Duke University, Durham, NC Abstract. Porpidia is a saxicolous segregate of the large classical crustose genus Lecidea, dis-tinguished from other segregate genera and families mainly by a tall hymenium, a particular. Taxonomic Purgatory: Sorting Out the Wasp Genus Myzinum Latreille in North America (Hymenoptera, Tiphiidae, Myzininae). Zootaxa. Progress 01/01/08 to 12/31/08 Outputs OUTPUTS: The world revision of the wasp family Tiphiidae is continuing although this has been delayed by my becoming department chair.
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Polystichum munitum, the western swordfern, is an evergreen fern native to western North America, where it is one of the most abundant occurs along the Pacific coast from southeastern Alaska to southern California, and also inland east to southeastern British Columbia, northern Idaho and western Montana, with disjunctive populations in northern British Columbia, Canada; the Black Clade: Tracheophytes.
Dryopteridaceae s.l. of North America Update, database (version ) Acquired: Notes: Updated for ITIS by the Flora of North America Expertise Network, in connection with an update for USDA PLANTS () Reference for: Polystichum munitum: Source: The PLANTS Database, database (version ) Acquired: Notes:Biological classification: Species.
Polystichum makinoi. The genus Polystichum is comprised of species of mostly evergreen, terrestrial ferns that are found worldwide in a variety of habitats. These excellent foliage plants are useful in rock or shade gardens, ferneries, in borders, or as woodland groundcovers.
Recent advances in molecular systematics of the ferns make it possible to address long‐standing questions about classification of the major fern genera, such as the worldwide genus Polystichum (Dryopteridaceae), comprising at least species.
In this study we examined rbcL sequences and morphological characters from 55 fern taxa: 34 were from Polystichum and 21 were from other Cited by: Paul G Wolf Allopolyploidy is common in the homosporous fern Polystichum and may account in large part for the taxonomic complexity of the genus. Six polyploid species of Polystichum occur in North.
Equisetum (/ ˌ ɛ k w ɪ ˈ s iː t əm /; horsetail, snake grass, puzzlegrass) is the only living genus in Equisetaceae, a family of vascular plants that reproduce by spores rather than seeds.
Equisetum is a "living fossil", the only living genus of the entire subclass Equisetidae, which for over million years was much more diverse and dominated the understorey of late Paleozoic forests.
Polystichum Roth. Polystichum is a large genus with up to or more species, distributed throughout the greatest species diversity occurs in temperate Asia with more than species in China ( of which endemic) (Zhang & Barrington ).
The present evolutionary and taxonomic status of the fern genusPolystichum: The Botanical Society of America Peteridophyte Section Symposium. Amer. Flora of North America Editorial Committee [FNA Ed.
Comm.] Flora of North America North of Mexico. Systematics ofPolystichum in western North America north of Mexico. Pteridologia. investigation of the genus in this region, which is at the center Systematics of Polystichum in western North America.
the extant Pteridophytes are classified from the taxonomic level of. Dryopteridaceae s.l. of North America Update, database (version ) Acquired: Notes: Updated for ITIS by the Flora of North America Expertise Network, in connection with an update for USDA PLANTS () Reference for: Polystichum: Source: NODC Taxonomic Code, database (version ) Acquired: Notes: Reference for.
Allopolyploidy is common in the homosporous fern Polystichum and may account in large part for the taxonomic complexity of the genus. Six polyploid species of Polystichum occur in North America. We addressed the origins of two tetraploids (2n = ), P.
californicum and P. scopulinum, using allozymic data for 12 loci and restriction fragment analyses of chloroplast DNA (cpDNA).
Check other web resources for Polystichum munitum (Kaulf.) C. Presl: Flora of North America: Collaborative Floristic Effort of North American Botanists ; PLANTS: USDA-NRCS Database of Plants of the United States and its Territories ; BONAP North American Plant Atlas of the Biota of North America Program: ; TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden.
A genus‐wide molecular phylogeny for Polystichum and allied genera (Dryopteridaceae) was reconstructed to address the biogeographic origin and evolution of the three Hawaiian Polystichum species, all endemic there.
The analysis was based on the cpDNA sequences rbcL and the trnL‐F spacer from a taxonomically and geographically diverse sample.
Parsimony and Bayesian phylogenetic. Check other web resources for Polystichum braunii (Spenn.) Fée: Flora Europaea: Database of European Plants (ESFEDS) Flora of North America: Collaborative Floristic Effort of North American Botanists ; PLANTS: USDA-NRCS Database of Plants of the United States and its Territories ; BONAP North American Plant Atlas of the Biota of North America.
Step 3b - It's bigger than a genus. Any taxonomic group larger than a genus is capitalized but not italicized. Homo sapiens is the most abundant member of Primates. Depending on who you ask, taxonomic groups larger than a genus do not have ranks, or they have ranks.
I try to not use ranks, but I do not speak for the entirety of any profession. The chaetotaxy of 15 species of eastern North American Entomobrya is redescribed in order to determine potential characters for the diagnosis of cryptic lineages and evaluate the diagnostic and phylogenetic utility of chaetotaxy.
As a result, four new species (Entomobrya citrensis Katz & Soto-Adames, sp. n., Entomobrya jubata Katz & Soto-Adames, sp. n., Entomobrya neotenica Katz & Soto. New taxa of Corispermum L.
(Chenopodiaceae), with preliminary comments on the taxonomy of the genus in North America. Novon 5: Systematics of Polystichum in western North America north of Mexico. Pteridologia Hong, W.
The genus Scapania in western North America. Taxonomic treatment. Bryologist There are over 1 million identified species of insects and spiders in the world with many more still awaiting discovery. Insects provide a vastly overlooked - and often times misunderstood - window into our fragile ecosystem that involves the perfect balance of millions of individual components.
A Western Holly Fern, Polystichum x scopulinum, in Newfoundland WARREN H. WAGNER, JR.* and ERNEST ROULEAU** The holly ferns of North America have recently received considerable study (W.
Wagner, ; D. Wagner, ), which has resulted in a number of changes in their taxonomic interpretation. In the west, 11 sexual taxa are recognized, in the. Introduction. The Nimravidae is a family of extinct, superficially “cat-like” carnivores, most of which exhibit saber-tooth dentition.
They existed from the late Eocene to the end of the Oligocene (approximately – Ma) and are known from North America, Europe and Asia (Bryant, ; Peigné, ).The first nimravid specimen was described in and by all currently.
nes (22); ornithomimids (12); and nodosaurs (5). These same taxomomic groups characterize the balance of eastern North American dinosaurs from New Jersey- Delaware-Maryland. The first three taxonomic groups above occur first in strata that are significantly older than related first occurrences in both western North America and the Atlantic Coastal Plain north of North Carolina, and these three.A taxonomic study on the fern genus Polystichum sect.
Metapolystichum from Sichuan, China. Acta Botanica Yunnanica Zhang L-B. A study on the cladistic relationships of the genus Polystichum Roth sect. Metapolystichum Tagawa using the method of maximal same step length.
Advances in Plant Taxonomy in Northern China, 1: IV.fication of the genus have been explained as retained plesiomorphies (Catalan et al. ). Despite a well-resolved phylogenefic position, the taxonomy of the genus remains controversial, and like many other eastern Asian and eastern North American disjunct genera has not been studied in .