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12 results for “grammitid ferns”
Data from: Ascogrammitis lehnertii (Polypodiaceae): A new and dominant understory-species from a diverse community of grammitid ferns in the Andes of Ecuador
In the scope of pantropical studies aimed at understanding how the diversity of grammitid ferns (Polypodiaceae) has evolved and is maintained, we studied a diverse grammitid community in treeline elfin forests in eight study plots of 400 m2 each at 3200 m on Cerro Toledo, Loja, southern Ecuador. We recorded a total of 7986 individuals of 16 grammitid species. Ascogrammitis lehnertii is here described as a new species. We also recorded Mycopteris leucosticta, a species previously believed to be restricted to the Chocó region of Ecuador. We found that the grammitid species were segregated by habitat into trunk-base and trunk specialists, which suggests that species coexistence in these diverse epiphytic communities is at least partly linked to habitat segregation. Ascogrammitis lehnertii and M. leucosticta were the second and third most abundant species, respectively, and both were mostly trunk-base species. The new species A. lehnertii differs from its congeners by the combination of its relatively broad lamina, (2‐)3‐4 cm wide, fertile leaves bearing 2 mm long reddish setae in and near the sori, and by bearing proliferous roots from which new plants emerge. Phylogenetic analyses of atpß, rbcL, rps4, trnG-trnR, and trnL-trnF DNA molecular sequences, using maximum likelihood, place A. lehnertii as sister to A. cuencana with strong support. Despite previous intensive collection efforts in Loja for the past 30 yr, all but one of the collections of this new species were made in the last three years. The discovery of A. lehnertii and the new record of M. leucosticta highlight the patchy distribution of some species in the Andes and the value of surveying habitats that potentially host unrecognized plant diversity. In order to facilitate further discovery, we provide a key to all species of Ascogrammitis.
FIGURE 3. Xiphopterella parva—A. Habitat. B. Abaxial lamina. C. Adaxial lamina. D in New species and records of grammitid ferns (Polypodiaceae) for Vietnam
FIGURE 3. Xiphopterella parva—A. Habitat. B. Abaxial lamina. C. Adaxial lamina. D. Portion of adaxial lamina showing the distribution of hairs. Scale bars: A = 1 cm, B, C = 3mm, D = 3mm.
FIGURE 1. Calymmodon concinnus—A. Habitat. B. Adaxial lamina. C. Abaxial lamina. D. Venation. E in New species and records of grammitid ferns (Polypodiaceae) for Vietnam
FIGURE 1. Calymmodon concinnus—A. Habitat. B. Adaxial lamina. C. Abaxial lamina. D. Venation. E. Branched hairs. Scale bars: A = 1 cm, B, C, D = 1 mm, E = 0.1 mm.
FIGURE 2. Oreogrammitis parvula—A. Habitat. B. Adaxial lamina. C. Abaxial lamina. D. Venation. E in New species and records of grammitid ferns (Polypodiaceae) for Vietnam
FIGURE 2. Oreogrammitis parvula—A. Habitat. B. Adaxial lamina. C. Abaxial lamina. D. Venation. E. Portion of adaxial lamina showing the distribution of hairs. F. Sorus. Scale bars: A = 6 mm, B, C, D = 4mm, E = 1 mm, F = 0.5 mm.
FIGURE 2 in Taxonomic novelties in grammitid ferns (Polypodiaceae) from the Neotropics and Madagascar supported by molecular data
FIGURE 2. Parrisia parietina (Klotzsch) Shalisko & Sundue. A–B. Habit (Sundue et al. 3233). Photos by M. Sundue.
FIGURE 1 in Taxonomic novelties in grammitid ferns (Polypodiaceae) from the Neotropics and Madagascar supported by molecular data
FIGURE 1. The phylogenetic position of newly sequenced samples of Neotropical grammatid ferns (indicated as bold text) shown at the best maximum likelihood (ML) tree of the combined six cpDNA loci dataset. Bootstrap support (BS) values from ML and posterior probability (PP) from Bayesian inference analysis are indicated as numbers above nodes. Dots represent nodes with BS>70 or PP>0.9. "-" indicates absence of node in the consensus topology in Bayesian inference. Clades included in taxonomic treatment are indicated on the right.
FIGURE 1 in Taxonomic update, distribution and conservation status of grammitid ferns (Polypodiaceae, Polypodiopsida) in Veracruz State, Mexico
FIGURE 1. Map of Veracruz and bordering states, Mexico, indicating Los Tuxtlas and central montane area around the capital city of Xalapa.
FIGURE 3 in Circumscription of the grammitid fern genus Oreogrammitis (Polypodiaceae) with the description of three new genera: Calligrammitis, Devolia, and Glabrigrammitis
FIGURE 3. Devolia orientalis (T.C.Hsu) Li Bing Zhang, X.M.Zhou, Jian Jun Yang & Ralf Knapp.—A. Habit and habitat.—B. Habit.— C. Lower portion of plant.—D, F. Adaxial view of laminae. –E. Abaxial view of lamina (photo credit: Ralf Knapp).
FIGURE 2 in Circumscription of the grammitid fern genus Oreogrammitis (Polypodiaceae) with the description of three new genera: Calligrammitis, Devolia, and Glabrigrammitis
FIGURE 2. Calligrammitis beddomeana (Alderw.) Parris, Sundue, Li Bing Zhang, X.M.Zhou & Ralf Knapp.—A, B. Habit and habitats.—C. Lower portion of plant.—D. Adaxial view of lamina.—E. Portion of lamina margin showing hairs.—F. Young shoot of leaf showing hairs.—G. Stipes.—H. Abaxial view of laminae showing sori.—I. Abaxial view of portion of lamina showing sori (photo credit: Ralf Knapp).
FIGURE 1 in Circumscription of the grammitid fern genus Oreogrammitis (Polypodiaceae) with the description of three new genera: Calligrammitis, Devolia, and Glabrigrammitis
FIGURE 1. Simplified maximum likelihood phylogeny of the Asia-Pacific clade of grammitid ferns (Polypodiaceae) based on six plastid markers (atpB, rbcL, rps4, rps4-trnS, trnG-R, trnL & trnL-F). Values of maximum likelihood bootstrap support, Bayesian inference posterior probability, and maximum parsimony jackknife support are along/above the branches (Zhou et al. 2023). The genera in blue are newly described here.
FIGURE 4 in Circumscription of the grammitid fern genus Oreogrammitis (Polypodiaceae) with the description of three new genera: Calligrammitis, Devolia, and Glabrigrammitis
FIGURE 4. Glabrigrammitis nuda (Tagawa) Li Bing Zhang, X.M.Zhou, Jian Jun Yang & Parris.—A. Habit and habitat.—B. Habit.—C. Lower portion of plant showing rhizome.—D. Adaxial view of sterile lamina.—E. Adaxial view of portion of fertile lamina.—F. Abaxial view of portion of lamina showing sori (photo credit: Ralf Knapp).
Data from: Ascogrammitis lehnertii (Polypodiaceae): A new and dominant understory-species from a diverse community of grammitid ferns in the Andes of Ecuador
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