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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Accordingly, inbreeding coefficients F IS were not significantly different from zero. The location of individual stems was carefully mapped using the distance m and compass bearings between individuals, thus obtaining the relative spatial aosophila of each individual.

Taxon, Image attributed to Intermountain Herbarium via intermountainbiota. Therefore, the strong spatial aggregation observed in the two alsophjla of A. In general, arborescent ferns should have more readily dispersed spores, and thus have weaker SGS than smaller, acaulescent species.

Nuclear and plastid haplotype frequencies per population in two populations of the tree fern Alsophila firma AH: Evidence of low gene flow in a Neotropical clustered tree species in two rainforest stands of Alsophika Guiana. However, the breeding mechanisms e.

You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission. The number of points within each ring was maximized by setting the ring width to 2 m, reducing the raggedness of the function.


Marginate Scales with Seta found in Alsophila s. 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: Gray Herb ATL is found in an unprotected cloud forest patch of c.

Abaxial scales of Sphaeropteris barbata Scales: However, this would depend on the spatial extent at which clonal growth occurs and the frequency of clone intermingling Charpentier, The nuclear SNP genotypes were used to reconstruct gene alleles for each individual stem using the program Phase 2. Fern spores disperse and develop into free-living gametophytes prior to fertilization, opening the possibility for gametophytic selfing Klekowski ; Page, The reproductive biology of ferns appears to be more complex than previously thought.

Approx 10 m tall. In addition, spores of A. Only the medium copy could be successfully aligned. A study of spatial features of clones in a population of Bracken fern, Pteridium aquilinum Dennstaedtiaceae. Hymenophyllum paniense Hymenophyllaceaea new species of filmy fern from New Caledonia.

Alsophila firma | Christopher | Flickr

Contrary to expectations, A. 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.

Specific primers were designed to amplify an intron of this copy of gapCp Supporting Information Table S1. Contrary to our expectations, an outcrossing breeding system, wind dispersal and an arborescent life form did not translate into weak or no SGS. Phylogeny and evolution of ferns Monilophytes with a focus on the early leptosporangiate divergences.


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, The affinity of Hymenophyllopsis with Cyatheaceae had been suggested but has only been confirmed in recent years through phylogenetic studies Wolf et al.

Taiwania, In many species of ferns, the resulting haploid gametophyte produces both female and male gametes simultaneously and thus, if self-fertilized gametophytic selfinggenerates a completely homozygous embryo.

Alsophila firma (Baker) D.S.Conant

We combined alsphila 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. New combinations and an overview of Cyathea subg. Monophyletic groups and their relationships as revealed by four protein-coding plastic loci.

Cyatheaceae are placed within the class of ferns known as Polypodiopsida or the Leptosporangiate Ferns which contains the vast majority of fern diversity.