ALSOPHILA FIRMA PDF

Biotic Interactions (GloBI) · NCBI – National Center for Biotechnology Information. Alsophila firma. Open Interactive Map. Alsophila firma image. Click to Display. Brief summary. No one has contributed a brief summary to this page yet. Explore what EOL knows about Alsophila firma. Add a brief summary to this page. Alsophila firma (Baker) D.S. Conant is an accepted name. This name is the accepted name of a species in the genus Alsophila (family Cyatheaceae). The record.

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Hairs at the stipe base of D. Evolution of the climatic niche in scaly tree ferns Cyatheaceae, Polypodiopsida. Citing articles via Google Scholar. By using this site, you agree to the Terms of Use and Privacy Policy. More recently, Hymenophyllopsis has been described as a subgenus within Cyathea Christenhusz, Species of Cyathea in America related to the western Pacific species C.

Contrary to our expectations, an outcrossing breeding system, wind dispersal and an arborescent life form did not translate into weak or no SGS. SphareopterisCyatheaAlsophila sensu stricto and Gymnosphaera.

SEINet Portal Network – Alsophila firma

Gray Herb Cyatheaceae has a pan-tropical southern temperate distribution. In each population, all identifiable individual stems AH: Retrieved from ” https: The person who associated a work with this deed has dedicated the work to the public domain fima waiving all of his or her rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.

Fabaceae in French Qlsophila Dutetch et al. However, with evermore phylogenetic analyses and data botanists are beginning to piece together that main groups or genera within the family.

The diminutive Hymenophyllopsis superba. Only the medium copy could be successfully aligned. Permission granted to reproduce for personal and educational use only.

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Recent studies suggest strongly that Hymenophyllopsis nests within Cyathea as they both share marginal scales without apical setae and cyatheoid cup-shaped indusia Korall et al.

Furthermore, study of the spatial genetics and demography of the two life stages of ferns would be alspohila valuable in increasing our understanding of the causes of SGS in these plants.

However, this is likely to be the result of convergent evolution rather than a close taxonomic relationship. Abstract The development of spatial genetic structure SGS in seed plants has been linked to several biological attributes of species, such as breeding system and life form.

Clonal diversity and distribution in Stenocereus eruca Cactaceaea narrow endemic cactus of the Sonoran Desert. The analysis of SGS, therefore, can reveal the existence of relevant underlying ecological processes, such as clonal propagation Dutetch et al.

Marked spatial alsopyila structure in three populations of a weedy fern, Pteris multifida Poir.

Alsophila firma (Baker) D.S.Conant

Receive exclusive offers and updates from Oxford Academic. Cyatheaceae are placed within the class of ferns known as Polypodiopsida or the Leptosporangiate Ferns which contains the vast majority of fern diversity.

Other factors, such as life form and breeding system, are probably linked to SGS in ferns. These proposed lineages are separated by differences in scale morphology. Spatial population genetic structure in Trillium grandiflorum: Dicksoniaceae and Cibotium ca. The tree fern A.

Alsophila firma

Commercial copying, hiring and lending is prohibited. The two processes, clonality and limited dispersal, are probably related. Influences of life-history attributes on formation of local and distant fern populations.

The role of vegetative spread and seed dispersal for optimal life histories of clonal plants: However, this would depend on the spatial extent at which clonal growth occurs and the frequency of clone intermingling Charpentier, Images above attributed to Chris Reilly.

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AlsophilaCyathea and Sphaeropteris. A radioisotope technique to measure spore dispersal of the tree fern Cyathea arbores Sm. Within-population spatial genetic structure, neighbourhood size and clonal subrange in the seagrass Cymodocea nodosa. However, the presence of identical ramets in distinct spatial clusters might be the result of sexual reproduction. We combined spatial aggregation statistics and spatial genetic autocorrelation analyses using five plastid microsatellites and one nuclear gene to investigate SGS in two populations of the outcrossing tree fern Alsophila firma Cyatheaceae.

Kinship coefficients were computed for 20 distance intervals maximum distance in metres that were arbitrarily defined to maximize the number of pairwise comparisons. Significant demographic and fine-scale genetic structure in expanding and senescing populations of the terrestrial orchid Cymbidium goeringii Orchidaceae. Conant in a lower montane Mexican forest.

Sp meanmean Sp statistic across populations. The utility of nuclear gapCp in resolving polyploid fern origins. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

The development of spatial genetic structure SGS in seed plants has been linked to several biological attributes of species, such as breeding system and life form.

These tree ferns have gametophytes with multiple archegonia that can be simultaneously fertilized polyembryonycreating an opportunity for the developmental selection of embryos and young sporophytes with the higher levels of heterozygosity Klekowski, Statistics of estimated spatial genetic structure for plastid haplotypes plastid SSRs and nuclear alleles gapCp in the two studied populations of the tree fern Alsophila firma AH: Contrary to expectations, A.

Autogamous allohomoploidy in Alsophila and Nephelea Cyatheaceae: