Recent Changes and Corrections in the Taxonomy of  Indian Pteridophytes: Part 2

Fraser‐Jenkins, Christopher R.; S, Rua de São Mateus; Dt., Fontainhas C; Kholia, B. S.; Khandel, Dhan Raj; Laboratories, Godavary Botanical

doi:10.54207/bsmps1000-2021-dw8zer

Cited by 12 publications

(11 citation statements)

References 12 publications

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“…Kuo and T. subsageniacea (Christ) Christenh. ( Holttum 1988 ; Kuo 1997 ; Zink 2006 ; Lindsay and Middleton 2012 onwards; Xing et al 2013 ; Fraser-Jenkins et al 2018 ), as well as an unidentified taxon which was labelled as “ Tectaria sp.1” by Dong et al (2018a) . Of these species, the most contentious species are T. subfuscipes and T. subsageniacea .…”

Section: Introductionmentioning

confidence: 99%

A phylogenetic and morphological study of the Tectaria fuscipes group (Tectariaceae), with description of a new species

Dong¹,

Li²,

Huang³

et al. 2022

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The fern species Tectaria fuscipes and morphologically similar species, which are common in tropical and subtropical mainland Asia, constitute a taxonomically confusing group. To better understand species boundaries and relationships within the T. fuscipes group, we conducted phylogenetic analyses of five plastid regions and morphological observations of herbarium specimens and living plants. As a result, we produced a generally well-resolved phylogeny of the T. fuscipes group and related species in Asia. The phylogenetic analyses supported the monophyly of the T. fuscipes group, which includes T. dissecta, T. fuscipes, T. ingens, T. paradoxa, T. setulosa, T. subfuscipes, T. subsageniacea and a new species, but excludes T. kusukusensis. However, T. fuscipes, T. subfuscipes and T. subsageniacea are almost indistinguishable in morphology, which form a complex characterised by the black linear-lanceolate stipe scales. The new species found in southern China and Vietnam is described here as T. fungii. It is similar to the T. fuscipes complex and T. kusukusensis, but differs from the former mainly by its brown-castaneous lanceolate stipe scales and from the latter by having nearly hairless laminae (versus frond axes abaxially bearing copious hairs).

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Section: Introductionmentioning

confidence: 99%

A phylogenetic and morphological study of the Tectaria fuscipes group (Tectariaceae), with description of a new species

Dong¹,

Li²,

Huang³

et al. 2022

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“…By examining specimens of all Tectaria species with 1-pinnate, pinnae-entire fronds recorded in Indochina and nearby regions ( Tardieu-Blot and Christensen 1941 ; Tagawa and Iwatsuki 1988 ; Xing et al 2013 ; Fraser-Jenkins et al 2018 ), we found that some specimens of T. danangensis look very like those of T. fissa (Kunze) Holttum, a species frequently occurring in western Malesia but not in Indochina ( Holttum 1991 ; Lindsay and Middleton 2012 onwards ). A detailed comparison (Table 1 ) showed that T. danangensis differs from T. fissa and other species having 1-pinnate fronds by its venation lacking distinct transverse veins between lateral veins and its sori being generally in only two rows (versus 4–6 rows) between lateral veins.…”

Section: Discussionmentioning

confidence: 89%

Tectaria danangensis (Tectariaceae), a new fern species from Vietnam

Pham¹,

Li²,

Dong³

2022

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A new fern species, Tectaria danangensis (Tectariaceae) from Vietnam, which had long been misreported as T. crenata, is described and illustrated. The new species resembles T. poilanei, a species long neglected in the fern flora of Indochina, in the frond shape and sori arrangement, but differs by its irregularly 2-rowed sori (versus regularly 2-rowed, distantly and evenly arranged) between lateral veins of pinnae, fronds being more or less dimorphic (versus monomorphic) and basal pinnae each with a base-joined (versus free) lobe. Phylogenetic analyses of five plastid regions (atpB, ndhF + ndhF-trnN, rbcL, rps16-matK + matK and trnL-F) suggested T. danangensis has a close affinity to T. harlandii. Tectaria danangensis appears to be an intermediate species between T. harlandii and T. poilanei.

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“…For additional synonymy see Moran (1995), Mickel & Smith (2004), Navarrete & Øllgaard (2000), Yan & al. (2013), Fraser-Jenkins & al. (2017, Schwartsburd & al.…”

Section: ■ Discussionmentioning

confidence: 99%

“…Species estimates vary widely, from 33 (Moore, 2010) to 60 (PPG-I, 2016), or 100 (Yuan & al., 2012). Important regional treatments include Cambodia (Sun, 2014), China (Yan & al., 2013), India (Fraser-Jenkins & al., 2017), Japan (Nakaike, 1975), Nepal (Fraser-Jenkins & al., 2015), Taiwan (Knapp, 2011;TPG, 2019TPG, , 2021, and Thailand (Tagawa & Iwatsuki, 1979). We include 44 species and 4 named hybrids here based upon molecular phylogenetic and morphological evidence.…”

Section: ■ Discussionmentioning

confidence: 99%

Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura, gen. nov.

Triana-Moreno

Yañez

Kuo

et al. 2022

TAXON

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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 18 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 Dennstaedtia with 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.

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Recent Changes and Corrections in the Taxonomy of Indian Pteridophytes: Part 2

Cited by 12 publications

References 12 publications

A phylogenetic and morphological study of the Tectaria fuscipes group (Tectariaceae), with description of a new species

A phylogenetic and morphological study of the Tectaria fuscipes group (Tectariaceae), with description of a new species

Tectaria danangensis (Tectariaceae), a new fern species from Vietnam

Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura, gen. nov.

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Recent Changes and Corrections in the Taxonomy of Indian Pteridophytes: Part 2

Cited by 12 publications

References 12 publications

﻿A phylogenetic and morphological study of the Tectaria fuscipes group (Tectariaceae), with description of a new species

﻿A phylogenetic and morphological study of the Tectaria fuscipes group (Tectariaceae), with description of a new species

﻿Tectaria danangensis (Tectariaceae), a new fern species from Vietnam

Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura, gen. nov.

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A phylogenetic and morphological study of the Tectaria fuscipes group (Tectariaceae), with description of a new species

A phylogenetic and morphological study of the Tectaria fuscipes group (Tectariaceae), with description of a new species

Tectaria danangensis (Tectariaceae), a new fern species from Vietnam