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40 results for “Taxaceae”
Text-fig. 3. Pinaceae, Taxaceae. a: Pinus needle fascicle with 3 needles, UAPC-ALTA S 25088A. b: Pinus needle fascicle with at least 4 needles, UAPC-ALTA S 59496. c: Articulate Pinus seed (section Diploxylon) showing seed body partly detached from wing, BBM-PAL-P000007. d: Winged pinaceous seed with elongate, flattened wing and narrow seed body, BBM-PAL-P000048. e: Another winged pinaceous seed with very narrow seed body, BBM-PAL-P000008. f: Amentotaxus leaf, UAPC-ALTA S S25086A. g: Higher magnification counterpart of (f) showing abaxial (lower) leaf surface with two parallel stomatal bands and tapered leaf tip S 25086B. h: Higher magnification of specimen in (f) showing adaxial (upper) leaf surface with detail of single midvein. Scale bars: a–e, g, h = 1 cm, f = 2 cm. in The Early Eocene Flora Of Horsefly, British Columbia, Canada And Its Phytogeographic Significance
Text-fig. 3. Pinaceae, Taxaceae. a: Pinus needle fascicle with 3 needles, UAPC-ALTA S 25088A. b: Pinus needle fascicle with at least 4 needles, UAPC-ALTA S 59496. c: Articulate Pinus seed (section Diploxylon) showing seed body partly detached from wing, BBM-PAL-P000007. d: Winged pinaceous seed with elongate, flattened wing and narrow seed body, BBM-PAL-P000048. e: Another winged pinaceous seed with very narrow seed body, BBM-PAL-P000008. f: Amentotaxus leaf, UAPC-ALTA S S25086A. g: Higher magnification counterpart of (f) showing abaxial (lower) leaf surface with two parallel stomatal bands and tapered leaf tip S 25086B. h: Higher magnification of specimen in (f) showing adaxial (upper) leaf surface with detail of single midvein. Scale bars: a–e, g, h = 1 cm, f = 2 cm.
Taxus sp. (Taxaceae) - twig - showing attachment of needles
Image of Taxus sp. (Taxaceae) - twig - showing attachment of needles
Taxus sp. (Taxaceae) - leaf - entire needle
Image of Taxus sp. (Taxaceae) - leaf - entire needle
Taxus sp. (Taxaceae) - whole tree - general
Image of Taxus sp. (Taxaceae) - whole tree - general
Taxus sp. (Taxaceae) - bark - of a small tree or small branch
Image of Taxus sp. (Taxaceae) - bark - of a small tree or small branch
Taxus sp. (Taxaceae) - cone - female - mature open
Image of Taxus sp. (Taxaceae) - cone - female - mature open
Taxus sp. (Taxaceae) - cone - female - mature open
Image of Taxus sp. (Taxaceae) - cone - female - mature open
Taxus sp. (Taxaceae) - cone - female - mature open
Image of Taxus sp. (Taxaceae) - cone - female - mature open
Taxus [unknown] (Taxaceae) - cone - male
Image of Taxus [unknown] (Taxaceae) - cone - male
Taxus [unknown] (Taxaceae) - cone - male
Image of Taxus [unknown] (Taxaceae) - cone - male
Taxus [unknown] (Taxaceae) - cone - female - receptive
Image of Taxus [unknown] (Taxaceae) - cone - female - receptive
Phylogenomics and biogeography of Torreya (Taxaceae) – Integrating data from three organelle genomes, morphology, and fossils and a practical method for reducing missing data from RAD-seq
<p><span>Restriction site-associated DNA sequencing (RAD-seq) enables obtaining thousands of genetic markers for phylogenomic studies. However, RAD-seq data are subject to allele dropout (ADO) due to polymorphisms at enzyme cutting sites. We developed a new pipeline, RADADOR, to mitigate the ADO in outgroups by recovering missing loci from previously published transcriptomes in our study of a gymnosperm genus </span><em>Torreya</em><span>. Using the supplemented RAD-seq data in combination with plastome and mitochondrial gene sequences, morphology, and fossil records, we reconstructed the phylogenetic and biogeographic histories of the genus and test hypotheses on diversity anomaly in eastern Asian-North American floristic disjunction. Our results showed that our pipeline recovered many loci missing from the outgroup, and the improved data yielded a more robust phylogeny for </span><em>Torreya</em><span>. Using the fossilized-birth-death model and divergence-extinction-cladogenesis method we resolved detailed biogeographic history of </span><em>Torreya</em><span> that suggested a Jurassic origin in the Laurasia and differential speciation and extinction among continents accounting for the modern diversity anomaly biased toward Eastern Asia (EA). The history also supported a vicariance origin of the modern </span><em>Torreya</em><span> from a widespread ancestor in EA and NA in the mid-Eocene, cross-Beringia exchange in the early Paleogene before the vicariant isolation, in contrast to the "Out of NA" pattern common to gymnosperms and in contrast to the "Out of EA" hypothesis previously proposed for the genus. Furthermore, we observed phylogenetic discordance between the nuclear and plastid phylogenies on </span><em>T. jackii</em><span>, suggesting differential lineage sorting of plastid genomes among </span><em>Torreya</em><span> species or plastid genome capture in </span><em>T. jackii</em><span>.</span></p>
Taxus brevifolia (Taxaceae) - bark - of a small tree or small branch
Image of Taxus brevifolia (Taxaceae) - bark - of a small tree or small branch
Taxus brevifolia (Taxaceae) - twig - showing attachment of needles
Image of Taxus brevifolia (Taxaceae) - twig - showing attachment of needles
Taxus brevifolia (Taxaceae) - leaf - entire needle
Image of Taxus brevifolia (Taxaceae) - leaf - entire needle
Taxus brevifolia (Taxaceae) - bark - of a small tree or small branch
Image of Taxus brevifolia (Taxaceae) - bark - of a small tree or small branch
Taxus brevifolia (Taxaceae) - cone - female - mature open
Image of Taxus brevifolia (Taxaceae) - cone - female - mature open
Taxus brevifolia (Taxaceae) - whole tree - general
Image of Taxus brevifolia (Taxaceae) - whole tree - general
Phylogenomics and biogeography of Torreya (Taxaceae) – Integrating data from three organelle genomes, morphology, and fossils and a practical method for reducing missing data from RAD-seq
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FIGURE 3 in Second-step lectotypification of the name Taxus chienii (Taxaceae)
FIGURE 3. One syntype (S. Chen 1384, PE) of Taxus chienii, which was selected as the lectotype by Lin & Cao (2007) and might be superseded. Permission by Herbarium of Institute of Botany, Chinese Academy of Sciences (PE).
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