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10 results for “Mucura”
Fig. 8 in Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura, gen. nov.
Fig. 8. Characters of Mucura. A, Habit; B, Upper leaf surface and alate rachis-costa axes; C, Lower leaf surface and marginal sori with cylindrical indusia; D, Unbranched rhizome and petiole lacking epipetiolar buds. — All photos by M. Sundue.
Fig. 4 in Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura, gen. nov.
Fig. 4. Examples of perispore morphology of spores in distal view. A, Verrucae and irregular reticles with prominent ridges covering the corners, Mucura globulifera (Yañez & Márquez 86, LP); B, Tubercles, Sitobolium wilfordii (Unknown coll. s.n., UVMVT192145, VT); C, Verrucae and prominent ridges to the spore sides, Sitobolium hirsutum (Rothfels & al. 5282, VT); D, Network of rodlets, Microlepia speluncae (Rojas 4878, MO); E, Regular reticle, Dennstaedtia glabrata (James & Sundue 1593, VT); F, Prominent ridges, Dennstaedtia distenta (Mickel 4163, LP); G, Verrucae and ridges, Dennstaedtia dissecta (Palacios 1296, LP). — Scale bars = 10 μm.
Fig. 5 in Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura, gen. nov.
Fig. 5. Characters of Microlepia. A, Lower leaf surface; B, Detail of abaxial sori; C, Upper leaf surface; D, Detail of pinna costae. — All from Microlepia strigosa, Philippines, Sundue 3163 (CMUH, TAIF, VT). All photos by M. Sundue.
Fig. 3. Character state maps for four traits. A in Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura, gen. nov.
Fig. 3. Character state maps for four traits. A, Spore shape: monolete (blue), trilete (yellow); B, Sorus position: abaxial (blue), marginal (yellow). C, Chromosome base number: 43 or 86 (light blue), 34 (blue), 46 or 47 (light green), 29 (green), 44 (pink), 30 (red), 31 (light orange), 32 (orange), 48 (light purple), 28 (purple), 56 (yellow), 26 (brown), 52 (magenta), 38 (aquamarine); D, Perpispore morphology: prominent ridges (light blue), prominent ridges and verrucae (blue), prominent ridges, verrucae + irregular reticles (light green), verrucae (orange), verrucae and ridges (green), regular reticles (pink), regular reticles + tubercles (red), echinae (purple), baculae (light yellow), ornamented verrucae (brown), rodlets (yellow), tubercles (aquamarine), rugulae (light brown). White circles indicate taxa for which character state data is missing.
Fig. 2. Character state maps for four traits. A in Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura, gen. nov.
Fig. 2. Character state maps for four traits. A, Abaxial indusium present (blue) vs. absent (yellow); B, Adaxial indusium present (blue) vs. absent (yellow); C, Epipetiolar buds present (blue) vs. absent (yellow); D, Leaf buds present (blue) vs. absent (yellow). White circles indicate taxa for which character state data is missing.
Fig. 1 in Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura, gen. nov.
Fig. 1. Best tree resulting from the maximum likelihood phylogenetic tree search using IQ-Tree2. Bootstrap support values>80% from 1000 iterations are presented at nodes. Clades with posterior-support of 1 and ML bootstrap values>90% are indicated with a thickened bar.
Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura , gen. nov.
<p>We undertook a molecular phylogenetic revision of hayscented ferns (Dennstaedtiaceae: Dennstaedtioideae) using four plastid markers. Our sampling represents ca. 40% of the extant diversity and includes the type species for each of the relevant segregate genera. We coded 20 discrete morphological characters which we used to find diagnosable clades. We show that Dennstaedtia is polyphyletic, with the majority of species forming three morphologically distinct clades, but its type (D.flaccida) is nested within Microlepia. As such, we support the conservation of Dennstaedtiawith a new type, D.dissecta. Following our results, we develop a classification of four genera: Dennstaedtia, Microlepia, Mucura (gen. nov.), and Sitobolium. Beyond the inclusion of D.flaccida, we propose to maintain Microlepia with its current circumscription. Except for a single adventive species in the Neotropics, Microlepia is a Paleotropical genus of about 60 species diagnosed by their distinctive perispore ornamentation of rodlets, and by petioles that lack epipetiolar buds. Mucura is a Neotropical genus of two species that differ from all other Dennstaedtiaceae by the combination of dichotomously branching rhizomes, petioles that lack epipetiolar buds, marginal sori with both abaxial and adaxial indusia, and trilete spores with a unique perispore ornamentation. As defined here, Dennstaedtia is a pantropical genus of about 55 species recognized by having unbranched rhizomes, petioles bearing epipetiolar buds, and by often bearing proliferous buds upon the leaves. Sitobolium is a small clade of ca. five species distinguished by their relatively small leaves that have elongate catenate hairs. These hairs often bear a capitate non-glandular terminal cell. In support of our classification, we provide a key to the eleven genera of Dennstaedtiaceae, and for the four genera of Dennstaedtioideae we provide morphological and geographic synopses, a list of constituent species, and necessary new combinations.</p>
Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura , gen. nov.
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Fig. 7 in Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura, gen. nov.
Fig. 7. Characters of Sitobolium. A, Habit; B, Lower leaf surface and marginal sori with cup-shaped indusia; C, Creeping branched rhizome and petioles with epipetiolar buds; D, Grooved adaxial rachis-costa axes without raised wings. — All photos by M. Sundue except B by R.C. Moran.
Fig. 6 in Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura, gen. nov.
Fig. 6. Characters of Dennstaedtia. A, Upper Leaf surface with leaf buds present in pinna axils; B, Upper leaf surface and grooved rachis-costa axes without raised wings; C, Lower leaf surface and marginal sori; D, Creeping unbranched rhizome; E, Subterete petioles with prominent epipetiolar buds. — All photos by M. Sundue except E by P.H. Hovenkamp.
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