Tectaria polymorpha (Wall. ex Hook.) Copel. (Tectariaceae), a new distributional record for Kerala (original) (raw)
Related papers
1st International Conference on Engineering and Applied Natural Sciences, 2022
The district of Churu lies in the northeast of Rajasthan State at an altitude of 286.207 metres above the mean sea level. From geographical spread point of view it has extension from 27°24' to 29° north latitudes and 73°40' to 75°41' east longitudes. It is bounded by Hanumangarh in north, Bikaner in west, Nagaur in south and Sikar, Jhunjhunu districts and boundaries of Haryana State in the east. It covers six tehsils namely : Taranagar, Rajgarh, Churu, Sardarshahr, Ratangarh and Sujangarh. The plant species-Tecomella undulate (Rohida, Rohira, Rohido) belongs to the family-Bignoniaeeae. It is a medium to full tall sized tree and appears very beautiful during the time of full bloom period. Tree exibits the most beautiful flowers of area under study which starts from the month of January and remains upto April. Thus, it appears very ornamental during its flowering stage. It belongs to the vegetation group of tree. From life-forms point of view the tree comes in the group of 'microphanerophyte' but from the leaf-classes point of view it falls in the class of 'microphylls'. The observations over the survey sites as scattered in different habitats show the nature of distribution of Tecomella sp. in the area under study. Since, Tecomella species can survive and may prevail its life cycle in two or more habitats, it exhibits polyclimax tendency of plant succession It covers wide range of soluble salt contents i.e. from 200 to 10000 ppm. Churu locality of hilly areas is the last patch of Tecomella undulala association which is towards the extreme-arid region of area under study The wood of the tree is not preferred as a fuel but in lack of all other alternatives it is some times used as fuel. Although a good quality of coal may be produced by its wood. The leaves are evergreen and the tree afford a good fodder for goats and cattle.Its seeds and bark are used in some indigenous medicines as used by villagers at local importance. Due to strong beneficial factor, it is also known as 'desert teak'. A solid trunk of a mature tree has more local market value and is commercially sold at a large seale which ranges from 20000 to50000 rupees per tree. As compared to other western elements of this group, it has limited distribution in westward direction. Arabian countries i.e. Baluchistan, Sindh (Pakistan). Iraq and Iran, Saudi Arabia but it disappears gradually as one proceeds towards the Afriean continent. In our country, it occurs in the southwest of Siwalik range towards the plains of Punjab, western, northern Gujarat, extends upto northern Maharashtra state and Rajasthan-Churu, Jhunjhunu and Sikar.
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.
Systematic Botany, 2014
ABSTRACT Abstract— Tectaria brauniana and T. nicotianifolia are unusual in their genus by having creeping rhizomes and two-ranked leaves. Tectaria brauniana is further unusual by having free veins. These rhizome characters of both species, and the free veins of T. brauniana, are typical of Triplophyllum and suggest a relationship to that genus instead of Tectaria. To determine the phylogenetic relationships of T. brauniana and T. nicotianifolia, we used molecular evidence from four plastid DNA markers (rbcL, rps4-trnS, trnG-trnR, and trnL-trnF) to generate a phylogenetic hypothesis for the Tectariaceae. The analysis included the tectarioid genera Arthropteris, Hypoderris, Psammiosorus, Pteridrys, Tectaria, and Triplophyllum. Tectaria brauniana and T. nicotianifolia were recovered as sister to Hypoderris brownii, and these three species were sister to Triplophyllum. These two clades were sister to the rest of Tectaria. Thus, to preserve the monophyly of Tectaria, T. brauniana and T. nicotianifolia are here classified in Hypoderris, a genus previously considered monotypic. We make the following new combination: H. nicotianifolia . In this expanded sense, Hypoderris is characterized by creeping rhizomes, two-ranked leaves, and spiny perispores. The genus occurs in the Caribbean region, Central America, and the Andes from northern Venezuela to Bolivia. A key and illustrations are given for the three species now recognized in Hypoderris.
Systematic Botany, 2014
Tectaria brauniana and T. nicotianifolia are unusual in their genus by having creeping rhizomes and two-ranked leaves. Tectaria brauniana is further unusual by having free veins. These rhizome characters of both species, and the free veins of T. brauniana, are typical of Triplophyllum and suggest a relationship to that genus instead of Tectaria. To determine the phylogenetic relationships of T. brauniana and T. nicotianifolia, we used molecular evidence from four plastid DNA markers (rbcL, rps4-trnS, trnG-trnR, and trnL-trnF) to generate a phylogenetic hypothesis for the Tectariaceae. The analysis included the tectarioid genera Arthropteris, Hypoderris, Psammiosorus, Pteridrys, Tectaria, and Triplophyllum. Tectaria brauniana and T. nicotianifolia were recovered as sister to Hypoderris brownii, and these three species were sister to Triplophyllum. These two clades were sister to the rest of Tectaria. Thus, to preserve the monophyly of Tectaria, T. brauniana and T. nicotianifolia are here classified in Hypoderris, a genus previously considered monotypic. We make the following new combination: H. nicotianifolia. In this expanded sense, Hypoderris is characterized by creeping rhizomes, two-ranked leaves, and spiny perispores. The genus occurs in the Caribbean region, Central America, and the Andes from northern Venezuela to Bolivia. A key and illustrations are given for the three species now recognized in Hypoderris.
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.
lesser-known species from Peninsular Thailand
An addition to the known Thai Flora, a species of ferns, Tectaria kehdingiana (Kuhn) M.G. Price has been found in Nakhon Si Thammarat Province, peninsular Thailand. This species is described and illustrated.