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50 results for “Thelypteridaceae”
Goniopteris ×tico (Thelypteridaceae), a new hybrid fern from Costa Rica
<p><em>Goniopteris</em> ×<em>tico</em>, a new hybrid fern from La Selva Biological Station in Heredia Province, Costa Rica, is described based on morphology and analysis of target-capture DNA sequence data. The hybrid co-occurs with its two putative progenitors, <em>Goniopteris</em> <em>mollis</em> and <em>Goniopteris</em> <em>nicaraguensis</em>, and is readily recognizable by its intermediate leaf dissection and venation. It is also intermediate in pinnae size and shape and presents irregularly lobed pinnae. Despite the broad overlap in the geographic distribution of its parental taxa, <em>Goniopteris</em> ×<em>tico</em> is only known from two collections from a single area of the La Selva Biological Station, highlighting the importance of close observation of ferns from even well-collected areas.</p>
Phegopteris hexagonoptera (Thelypteridaceae) - unspecified - unspecified
Image of Phegopteris hexagonoptera (Thelypteridaceae) - unspecified - unspecified
Phegopteris hexagonoptera (Thelypteridaceae) - unspecified - unspecified
Image of Phegopteris hexagonoptera (Thelypteridaceae) - unspecified - unspecified
Phegopteris hexagonoptera (Thelypteridaceae) - unspecified - unspecified
Image of Phegopteris hexagonoptera (Thelypteridaceae) - unspecified - unspecified
Phegopteris hexagonoptera (Thelypteridaceae) - whole plant - unspecified
Image of Phegopteris hexagonoptera (Thelypteridaceae) - whole plant - unspecified
Thelypteris palustris var. pubescens (Thelypteridaceae) - whole plant - unspecified
Image of Thelypteris palustris var. pubescens (Thelypteridaceae) - whole plant - unspecified
FIG. 10. Strophocaulon unitum, Fawcett 641 in A Generic Classification of the Thelypteridaceae
FIG. 10. Strophocaulon unitum, Fawcett 641 (VT), A. pinna lobes, abaxial view. B. rhizome. C. laminar apex.
FIG. 9. Steiropteris deltoidea, Fawcett 464 in A Generic Classification of the Thelypteridaceae
FIG. 9. Steiropteris deltoidea, Fawcett 464 (VT) A. habit. B. pinna lobes, adaxial view.C. Mesophlebion sp., Karger 1796 (VT), pinna lobes, abaxial view.
FIG. 6. A. Plesioneuron hopeanum, Fawcett 613 in A Generic Classification of the Thelypteridaceae
FIG. 6. A. Plesioneuron hopeanum, Fawcett 613 (VT), pinna lobes, adaxial view. Amauropelta (subg. Nibaa) noveboracensis, Fawcett 567 (MICH, VT), B. pinna-lobes, adaxial view.C. habit. D. Thelypteris palustris, Fawcett 569 (VT), pinna lobes abaxial view.
FIG. 3 in A Generic Classification of the Thelypteridaceae
FIG. 3. Grypothrix cuspidata, Lu 12803 (VT), A. habit.B. pinna, abaxial view. C. G. simplex, Lu 9270 (VT), habit.
FIG. 2 in A Generic Classification of the Thelypteridaceae
FIG. 2. Morphology of the Thelypteridaceae. A. Coryphopteris kolombangarae, SITW07554 (TAIF), glandular indusia. B. Goniopteris yaucoensis, Proctor 43584 (US), stellate hairs along adaxial costa.C.Pneumatopteris glandulifera, SITW11069 (TAIF),peg-like aerophores at pinna bases.D. Sphaerostephanos polycarpos,SITW11070 (TAIF), marginally glandular indusia.E. Sphaerostephanos doodioides, SITW05702 (TAIF), setose indusia,spherical glands on indusia, sporangia,and laminar tissue. F. Goniopteris reptans, Wright 813 (US), sori with shriveled, setose indusia, some hairs furcate. G. Macrothelypteris polypodioides, SITW11122 (TAIF), stipe scales. H. Hoiokula pendens, Hobdy 2664 (UC), setulose sporangia. I. Plesioneuron imbricatum, SITW05370 (TAIF), exindusiate sori, sporangia with spherical glands. J. Christella dentata, SITW10525 (TAIF), shriveled, setulose indusia. K. Sphaerostephanos heterocarpos SITW11079 (TAIF), abruptly reduced proximal pinnae, adaxial surface with acicular hairs. L. Coryphopteris subbipinnata, SITW11667 (TAIF), appressed stipe base scales,these marginally setulose. All photos by Cheng-Wei Chen except B, F, and H by Susan Fawcett.
FIG. 4. A. Hoiokula sandwicensis, Aborn s.n in A Generic Classification of the Thelypteridaceae
FIG. 4. A. Hoiokula sandwicensis, Aborn s.n. (VT),pinna lobes, abaxial view.B. Hoiokula pendens, Hobdy 2664 (UC), pinna lobes, adaxial view.C. Leptogramma pilosa, Diaz 6621 (UC), abaxial pinna lobes. D. Stegnogramma aspidioides, Palmer 1035 (UC), abaxial pinna. E. Stegnogramma wilfordii, Boufford 20159 (VT), proximal portion of lamina, abaxial view.
Coryphopteris subbipinnata, Mount Chaunapaho, Guadalcanal, Solomon Islands. Photo by Cheng-Wei Chen. in A Generic Classification of the Thelypteridaceae
Coryphopteris subbipinnata, Mount Chaunapaho, Guadalcanal, Solomon Islands. Photo by Cheng-Wei Chen.
FIG. 1. A in A Generic Classification of the Thelypteridaceae
FIG. 1. A synoptical tree illustrating relationships among genera of Thelypteridaceae based on Fawcett et al. (in press).
A global phylogenomic study of the Thelypteridaceae
<p><span>The generic classification of the Thelypteridaceae has been the subject of much controversy. Proposed taxonomic systems have varied from recognizing more than 1000 species in the family within the single genus <i>Thelypteris</i>, to systems favoring upwards of 30 genera. Insights on intrafamilial relationships have been gained from recent phylogenetic studies, especially for the Neotropics; however, in the most recent classification, 10 of 30 recognized genera are either non-monophyletic or untested. In the present study, we sequenced 407 nuclear loci for 621 samples, representing all recognized genera and approximately half the known species diversity. Our phylogenomic results, coupled with morphological study, provide a foundation for a new generic classification. Our recently recognized monophyletic genera demonstrate greater geographic coherence than previous taxonomic concepts suggested. Additionally, our results demonstrate that certain morphological characters, such as frond division, are evolutionarily labile, and are thus inadequate for defining genera. </span></p>
Thelypteris palustris var. pubescens (Thelypteridaceae) - whole plant - unspecified
Image of Thelypteris palustris var. pubescens (Thelypteridaceae) - whole plant - unspecified
Thelypteris palustris var. pubescens (Thelypteridaceae) - whole plant - unspecified
Image of Thelypteris palustris var. pubescens (Thelypteridaceae) - whole plant - unspecified
Thelypteris palustris var. pubescens (Thelypteridaceae) - whole plant - unspecified
Image of Thelypteris palustris var. pubescens (Thelypteridaceae) - whole plant - unspecified
Thelypteris palustris var. pubescens (Thelypteridaceae) - whole plant - unspecified
Image of Thelypteris palustris var. pubescens (Thelypteridaceae) - whole plant - unspecified
Fig. 2 in Insecticidal activity of the methanol extract of Pronephrium megacuspe (Thelypteridaceae) and its active component on Solenopsis invicta (Hymenoptera: Formicidae)
Fig. 2. The effect of methanol extract, ethyl acetate fraction, and compound 26 293 (phenol-3-O-beta-D-glucoside) from Pronephrium megacuspe on the walking ability of 294 Solenopsis invicta micrergates. Each data point represents the mean ± SE of 3 replicates. Each 295 replicate contained 10 tested ants. CK = control.
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