A reconnaissance study of tafoni development, exfoliation, and granular disintegration of natural and artificial rock surfaces in the coastal and lowland regions of Tamil Nadu, Southern India

2010 ◽  
Vol 54 (4) ◽  
pp. 491-509 ◽  
Author(s):  
Hema Achyuthan ◽  
K. Ashok Kumar ◽  
Sunil K. Tiwari ◽  
Stephen Norwick
2016 ◽  
Vol 87 (5) ◽  
pp. 291-302 ◽  
Author(s):  
Honnavalli N. Kumara ◽  
R. Sasi ◽  
Subash Chandran ◽  
Sindhu Radhakrishna

2021 ◽  
Vol 11 (2) ◽  
pp. 72-75
Author(s):  
N Yasothkumar

Due to the presence of antibiotic or antiseptic nature’s chemicals, plants are remarkable for the treatment of wounds. Having this fact as research theme, the present study was carried out to document the therapeutic uses of medicinal plants used to heal wound in Karandamalai of Dindigul district in Tamil Nadu. The frequent fieldwork was conducted from October 2019 to January 2020 for this study. The scientific name, family name, local name (in Tamil), part(s) used, mode of preparation, and mode of administration of medicine were recorded. A total of 24 medicinal remedies prepared from 24 plants were recorded. Further research on the phytochemistry and pharmacology of these medicinal plants should be conducted. Keywords: Medicinal plants, Wound healing, Karandamalai, Dindigul district, Tamil Nadu.


Zootaxa ◽  
2021 ◽  
Vol 4915 (2) ◽  
pp. 237-245
Author(s):  
T SIVARUBAN ◽  
PANDIARAJAN SRINIVASAN ◽  
S BARATHY ◽  
M BERNATH ROSI ◽  
RAJASEKARAN ISACK

A new mayfly species, Sparsorythus sivaramakrishnani sp. nov. from the stream of Pullian cholai, Thuraiyur, Namakkal district, Tamil Nadu, India is described based on male and female nymphs. Sparsorythus sivaramakrishnani sp. nov. differs from the closely related S. gracilis by the shape of the left prostheca, the number of bristle-like processes at base of left prostheca, the ratio and shape of right prostheca, the ratio of femur length: width, the size of the female nymph, the mesonotum overlapping in fifth abdominal segment of the female, and by the shape of hypopharyngeal lingua. 


Zootaxa ◽  
2019 ◽  
Vol 4571 (3) ◽  
pp. 383
Author(s):  
AKSHAY KHANDEKAR

A new species of the gekkonid genus Cnemaspis is described based on a series of nine specimens from near Sankari in Salem district, Tamil Nadu state, southern India. The new species is diagnosable by the following suite of characters: a small-sized Cnemaspis (adult snout to vent length less than 33 mm); heterogeneous dorsal pholidosis consisting of weakly keeled granular scales intermixed with large strongly keeled, conical tubercles, 9–11 rows of dorsal tubercles, 12–17 tubercles in paravertebral rows; spine-like scales absent on flank, 17–20 lamellae under digit IV of pes. Males with 4–6 femoral pores on each thigh, separated on either side by eight poreless scales from four precloacal pores; precloacal pores separated medially by a single poreless scale; two single dorsal ocelli on occiput and between forelimb insertions, two pairs of ocelli on either side just anterior and posterior to forelimb insertions. Cnemaspis agarwali sp. nov. is the fifth endemic species of Cnemaspis from peninsular India outside the Western Ghats and highlights the rich and unique diversity of this understudied region. 


2018 ◽  
Vol 10 (4) ◽  
pp. 597-606
Author(s):  
Umeshkumar L. TIWARI ◽  
Kaliamoorthy RAVIKUMAR

The study deals with the floristic diversity assessment and vegetation composition analysis in various forest types from Hosur Forest division situated in Eastern Ghats of Southern India, in the state of Tamil Nadu. The study recorded 468 species of plants belonging to 283 genera and 91 families, including Angiosperms (464 species), Pteridophytes (3 species) and Bryophytes (1 species). Of the total, 94 species are trees, 12 are lianas, 70 are shrubs, 34 species are climbers, 194 species are herbs, sedges 7, grasses 21, ferns 3 and 1 species of moss. The five most abundant families in Hosur Forest Division were Fabaceae (45 spp.), Poaceae (34 spp.), Acanthaceae (30 spp.), Euphorbiaceae (28 spp.) and Rubiaceae (25 spp.). The quantitative features such as density and important value index (IVI) varied greatly among forest and in different forest types. In the present study, the diversity index of shrubs and herbs were found to be higher than that of trees. The maximum species diversity was recorded in Southern dry mixed deciduous forest (SDMDF) followed by Southern Thorn Forest (STF) and Southern Thorn Scrub (STS). The species diversity (H) was recorded the highest for SDMDF (5.61) followed by STF (5.18) and the lowest for STS (5.12). The presence of large number of higher girth class tree species and low number of sapling and seedling indicates that the present forests investigated are old and exhibiting low regeneration.


Zootaxa ◽  
2020 ◽  
Vol 4729 (2) ◽  
pp. 249-265
Author(s):  
ISHAN AGARWAL ◽  
AARON M BAUER ◽  
SAUNAK PAL ◽  
ACHYUTHAN N SRIKANTHAN ◽  
AKSHAY KHANDEKAR

Two new species of the gekkonid genus Hemiphyllodactylus are described from mountains of the Western Ghats in Tamil Nadu, southern India. Hemiphyllodactylus nilgiriensis sp. nov. and H. peninsularis sp. nov. are > 5 % divergent in the mitochondrial ND2 gene from each other and members of the H. aurantiacus complex and differ from each other and members of the H. aurantiacus complex in several meristic characters and colouration. The description of these two new species takes the number of Indian Hemiphyllodactylus to six and the number of endemic geckos from Tamil Nadu to 15. 


Phytotaxa ◽  
2019 ◽  
Vol 397 (1) ◽  
pp. 107
Author(s):  
KRISHNACHANDRAN SAMPATH KUMAR ◽  
KANDASAMY KATHIRESAN ◽  
SENNIAPPAN ARUMUGAM

Based on intensive literature survey, thorough herbaria consultations, and extensive field surveys (2012–2017) along the coast of Tamil Nadu, besides consulting experts and botanists to resolve the typification and nomenclatural issues, the discovery, nomenclature, lectotype, distribution, and the present status of the coastal stenoendemic legume, Vachellia bolei (syn. Acacia bolei), in southern India, is discussed here in detail. Clarification regarding the Lectotype of the taxon is made and the extinction of the species is reported.


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