Results 31 to 40 of about 1,326 (167)
Abstract The species Coniopteris laciniata and Sphenopteris wonnacottii are heterophyllous ferns recovered from two Spanish Barremian localities, Las Hoyas and El Montsec respectively. The similarities between these species, observed in a study of a total of 66 hand specimens from both localities, indicate that they are conspecific.
Candela Blanco‐Moreno +1 more
wiley +1 more source
Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns [PDF]
publisher: Elsevier articletitle: Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns journaltitle: Perspectives in Plant Ecology, Evolution and Systematics articlelink: http://dx.doi.org/10.1016/j.ppees.2016.01.003 ...
Alexander R. Schmidt +75 more
core +1 more source
The fossil fern species Cretacifilix fungiformis from mid-Cretaceous Kachin amber from Myanmar was previously assigned to eupolypod ferns for having sporangia with a vertical annulus and sporangial stalks 2–3 cells thick, along with monolete spores with ...
Ledis Regalado +3 more
doaj +1 more source
Deep reticulation: the long legacy of hybridization in vascular plant evolution
SUMMARY Hybridization has long been recognized as a fundamental evolutionary process in plants but, until recently, our understanding of its phylogenetic distribution and biological significance across deep evolutionary scales has been largely obscure. Over the past decade, genomic and phylogenomic datasets have revealed, perhaps not surprisingly, that
Gregory W. Stull +3 more
wiley +1 more source
Genes Translocated into the Plastid Inverted Repeat Show Decelerated Substitution Rates and Elevated GC Content. [PDF]
Plant chloroplast genomes (plastomes) are characterized by an inverted repeat (IR) region and two larger single copy (SC) regions. Patterns of molecular evolution in the IR and SC regions differ, most notably by a reduced rate of nucleotide substitution ...
Kuo, Li-Yaung +3 more
core +1 more source
Abstract Premise While angiosperms respond uniformly to abscisic acid (ABA) by stomatal closure, the response of ferns to ABA is ambiguous. We evaluated the effect of endogenous ABA, hydrogen peroxide (H2O2), nitric oxide (NO), and Ca2+, low and high light intensities, and blue light (BL) on stomatal opening of Pleopeltis polypodioides.
Susan P. John +2 more
wiley +1 more source
Identifikasi Tumbuhan Paku (Pteridophyta) sebagai Bahan Ajar Botani Tumbuhan Rendah di Kawasan Tahura Pocut Meurah Intan Kabupaten Aceh Besar [PDF]
Telah dilakukan penelitian tentang Identifikasi Tumbuhan Paku (Pteridophyta) Sebagai Bahan Ajar Botani Tumbuhan Rendah di Kawasan Taman Hutan Raya Po Cut Meurah Intan Kabupaten Aceh Besar, Penelitian dilakukan pada tanggal 05 s.d 07 November 2014 ...
Armi, A. (Armi) +2 more
core +2 more sources
Environmentally driven extinction and opportunistic origination explain fern diversification patterns. [PDF]
Combining palaeontological and neontological data offers a unique opportunity to investigate the relative roles of biotic and abiotic controls of species diversification, and the importance of origination versus extinction in driving evolutionary ...
Antonelli, Alexandre, +9 more
core +3 more sources
Synopsis of Diplazium (Polypodiales: Athyriaceae) from Argentina
The first treatment of the Argentinian representatives of Diplazium (Athyriaceae) is presented. In the country, the genus is represented by eight species, all of which inhabit the Yungas and Parana rainforests. Identification keys, comments, illustrations, and ecological remarks for the species are presented. Diplazium divergens, D. moccennianum, and D.
Arana, Marcelo Daniel +2 more
openaire +2 more sources
Anatomical examination of the petiole of eupolypods I (Polypodiales)
Abstract. Tan JMP, Banaticla-Hilario MC, Malabrigo P, Angeles MD, JR Buot IE. 2020. Anatomical examination of the petiole of eupolypods I (Polypodiales). Biodiversitas 21: 1767-1777. The efficiency of petiole anatomy characters in identifying and describing the species and families of eupolypods I (Polypodiales) were explored.
null JEANETTE MARA P. TAN +4 more
openaire +2 more sources

