Pternopetalum latipinnulatum (Apiaceae), a new record for the flora of India (original) (raw)
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Pteroceras teres (Orchidaceae). A new record for the Andaman & Nicobar Islands, India a
Pteroceras teres, an epiphytic orchid, is reported from Campbell Bay National Park, Great Nicobar Island, and is a new addition to the orchid flora of the Andaman & Nicobar Islands. The species is briefly described and a photograph is provided. A key to the species occurring in these Islands is proposed. Résumé Pteroceras teres (Orchidaceae). Un taxon nouveau pour les Iles Andaman & Nicobar, Inde-Pteroceras teres, orchidée épiphyte, a été découvert dans le Parc National de Campbell Bay, Grande Ile de Nicobar, ce qui constitue une addition à la flore des Iles Andaman & Nicobar. L'espèce est brièvement décrite et illustrée. Une clé d'identification des trois espèces enregistrées à ce jour sur ces Iles est proposée.
Pteridophytes of Khawnglung Wildlife Sanctuary, Mizoram, India
A preliminary study on pteridophytic flora o f Khawnglung Wildlife Sanctuary, Mizoram has been carried out. A total of 33 species are enumerated for the first time from the Sanctuary. This includes three new distributional records viz., Leptochilus pedunculatus (Hook. & Grev.) Fraser-Jenk., Phymatosorus cuspidatus (D.Don) Pic. Serm., Microlepia hancei Prantl from Mizoram. An identification key along with a brief taxonomic description and distribution of each species has been provided in this communication.
A multivariate analysis of Pteryxia terebinthina (Apiaceae) 1
The Journal of the Torrey Botanical Society, 2008
A multivariate analysis of Pteryxia terebinthina (Apiaceae). J. Torrey Bot. Soc. 135: 81-93, 2008.-Recognition of infraspecific taxa in Pteryxia terebinthina (vars. albiflora, californica, foeniculacea, and terebinthina) is controversial. Multivariate analysis of variance, principal component analysis, and discriminant analysis of 265 specimens representing the morphological variability and geographic distribution of the species complex were conducted to test the validity of these infraspecific taxa. Results show that var. terebinthina can be recognized by its unique fruit wing structure. There are statistically significant differences among the remaining varieties for most of the characters previously used to recognize these varieties, but all of these characters are overlapping among the taxa. No clearly separated clusters are revealed in the principal component analysis and discriminant analysis does not allow reliable recognition of the varieties. We therefore propose that this species complex be recognized as containing two varieties, foeniculacea and terebinthina.
DISTRIBUTION AND OCCURRENCE OF SOME PTERIDOPHYTES IN GUJARAT: A NEW RECORD FOR THE STATE
Extensive field work in hilly regions, plain lands, wet lands, agricultural fields and arid regions of the Gujarat state was carried out in all 33 districts in 2013-14. From the total collection, five species differed from the earlier reported species. On critical study and detailed analysis they were identified as Ophioglossum parvifolium Grev. & Hook, Aleuritopteris bicolor (Roxb.) Fraser-Jenk., Athyrium hohenackerianum T. Moore, Tectaria coadunata (Wall. ex Hook. & Grev.) C. Chr. and Salvinia molesta D.S. Mitch. All newly identified species are found to be new record for the Gujarat state. Previous studies reported other species of Ophioglossum and Aleuritopteris while genera like Athyrium, Salvinia and Tectaria is reported for the first time from Gujarat forest. Present paper recommends further extensive studies to survey the diversity of pteridophytes in Gujarat. Moreover, Aleuritopteris bicoloris common in different forests while Tectaria coadunata is reported from only at two locations and possibly it may occur at other locations.
Pteridophytes of Ngengpui Wildlife Sanctuary, Mizoram, India
Pteridophytic flora of Ngengpui Wildlife Sanctuary, Mizoram has been carried out. A total of 33 species belonging to 21 genera and 18 families are enumerated for the first time from the sanctuary. This includes three new distributional records viz., Nephrolepis exaltata (L.) Schott, Pleocnemia submembranacea (Hyata) Tagawa & K. Iwats. and Tectaria decurrens (C. Presl) Copel. from Mizoram, remaining all are new report to this sanctuary. An identification key along with basionym and distribution of each species in Northeast India has been provided in present communication.
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The present work, 2 families, 2 genera and 15 species i.e. Pteridium (1 species) and Pteris (14 species) including 1 subspecies have been studied. Some of the taxa of ferns reported earlier from Uttarakhand by previous workers based on wrong identification have been placed under the heading excluded/doubtful species giving only botanical name and the reasons of their being excluded/doubtful species are based on Khullar (
Lectotypifications of 10 species of Pteris (Pteridaceae) from India
Phytotaxa, 2019
Pteris is the largest genus of the family Pteridaceae in India. Ambiguities persist about statuses of type specimens of some species of Pteris in India. Protologues and original material were consulted to provide unambiguous applications of names. As a result, ten species of Pteris are lectotypified here.
Floristic studies of the pteridophytes of district Tor Ghar KP, Pakistan
Anatolian Journal of Botany, 2020
This study was aimed to document the floristic attributes of the pteridophytes of District Tor Ghar; Khyber Pakhtunkhwa, Pakistan. Total 41 species distributed in 20 genera and 10 families were recognized. Dryopteridaceae was the largest family with 12 species (29.26%). Second and third large family is Pteridaceae and Thelypteridaceae with 10 (24.39%) and 5 (12.19%) species respectively. Like-wise, Dryopteris was the largest genus with 6 (14.63%) species. The main families were Aspleniaceae, Blechnaceae, Dennstaedtiaceae, Dryopteridaceae, Equisetaceae, Lygodiaceae, Marseliaceae, Pteridaceae, Thelypteridaceae, and Woodsiaceae. Polystichum integrilobium (Ching ex Y.T. Hsieh) W.M. Chu ex H.S. Kung is reported for the first time for Pakistan and 33 species are new records for the Tor Ghar. These identified species were collected from different localities i.e. Shumli Bandi, Bandi, Pabal, Tilli, Panja Gali, Kotkay, Ganga , Judba, Seri Kohani, Tagram, Nabori, Tor Kandow and Kandar (Hussanz...
2017
Pteris fauriei is widely distributed in Eastern Asia and has high morphological variation. Some morphologically similar plants related to this species are difficult to distinguish. We showed that the new Pteris species from Taiwan, previously identified as P. fauriei, can be morphologically distinguished by its wide pinnae, larger terminal pinnae than the lateral pinnae in sterile fronds, and triangular basal segments of the lateral pinnae. It was confirmed that this species is phylogenetically separated from the other East Asian Pteris species, except for a morphologically distinct species P. arisanensis, by means of chloroplast genes, rbcL and matK. The new species is named as Pteris latipinna sp. nov., referring to its wide pinnae. Here, we provide a key to facilitate the identification of the morphologically similar Pteris species in Asia. The morphological descriptions, images, ecology, and distribution are also presented.
Plant Systematics and Evolution, 2004
ITS sequences of members of Peucedanum and its segregates (Cervaria, Holandrea, Imperatoria, Oreoselinum, Pteroselinum, Thysselinum, Tommasinia, and Xanthoselinum), as well as representatives of other members of the previously identified 'Angelica' and 'Arracacia' clades, were analysed using distance, maximum likelihood, and maximum parsimony methods in order to establish their phylogenetic relationships. The 'Angelica' and 'Arracacia' clades comprise a strongly supported monophyletic group that is formally recognised as tribe Selineae. The genus Holandrea, expanded to include Cervaria caucasica and Peucedanum achaicum, is distantly related to the other peucedanoid genera. The remaining segregates are closely related to one another and to Peucedanum sensu stricto. The genera Seseli and Selinum are polyphyletic. Members of the genus Angelica form a single clade that also includes representatives of Selinum and Sphenosciadium. New combinations in Holandrea (H. caucasica, H. achaica) and Angelica (A. capitellata) are proposed, and Selinum pyrenaeum is recognised in Angelica (A. pyrenaea).