Andaman and Nicobar Regional Center

Port Blair, India

Andaman and Nicobar Regional Center

Port Blair, India
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Rajeshkumar S.,Andaman and Nicobar Regional Center | Raghunathan C.,Andaman and Nicobar Regional Center | Chandra K.,Zoological Survey of India
Zootaxa | Year: 2017

The damselfly Nososticta nicobarica sp. nov. (Odonata: Platycnemididae: Disparoneurinae) is described (holotype ♂: ZSI-ANRC-T-4418; 11.ii.2016) from Gandhi Nagar, Great Nicobar Island in the Andaman & Nicobar Islands, India. This is the first record for the genus Nososticta from the Indian sub-continent, and a formal description is given. The new spe-cies is described on the basis of male anal appendages, particularly cerci with a deeply bifurcate, acute apex, distinctly curved downward. Paraprocts almost straight with blunt apex slightly curved upward and inner margin with small, roughly rectangular hook. The female is characterised by the anterior lobe of the pronotum, which bears two long, divergent horn-like processes and a short posterior lobe with paired club-shaped processes. Affinities with species of Lesser Sundaic re-gion are discussed. © 2017 Magnolia Press.


Goutham-Bharathi M.P.,Andaman and Nicobar Regional Center | Rajendra S.,Andaman and Nicobar Regional Center | Raghunathan C.,Andaman and Nicobar Regional Center
Acta Ichthyologica et Piscatoria | Year: 2017

A single specimen of Echidna xanthospilos (Bleeker, 1859) was captured off Great Nicobar Island. This finding represents a new addition to the muraenid fauna of India. This is one of the data-deficient species hitherto known only from five countries in the Indo–Pacific. The specimen is described and illustrated. © 2017, Scientific Society of Szczecin. All rights reserved.


Murugan C.,Andaman and Nicobar Regional Center | Arisdason W.,Botanical Survey of India BSI
Phytotaxa | Year: 2016

Psychotria vasudevae, a new species belongs to the family Rubiaceae is described from the Little Nicobar Tribal Reserve and Katchal Island of the Union Territory of Andaman and Nicobar Islands, India. This species is closely allied to Psychotria nicobarica, by having similar leaf shape (elliptic-oblanceolate), nature of inflorescence (terminal cyme), and 5-merous flowers but from which it can be distinguished by the more slender and glabrous stems, glabrous midrib with 12 or 13 pairs of\ secondary veins, acute stipules, longer calyx lobes, externally pubescent corolla lobes, papillose stigma and globose fruits. A detailed description, illustration, distribution map, and photographic plate are provided. © 2016 Magnolia Press.


A taxonomic account of the genus Thottea Rottb.from the Andaman and Nicobar Islands along with a new record for India is presented. Of the three species recorded from the Andaman and Nicobar Islands, T. tomentosa (Blume) Ding Hou is widely distributed, T. paucifida Ding Hou is confined to Rutland of South Andaman and T. celebica Ding Hou is reported here as a new record for India.


Singh L.J.,Andaman and Nicobar Regional Center | Misra D.R.,Allahabad University
Phytomorphology: An International Journal of Plant Morphology | Year: 2015

The paper describes for the first time the comparative morphology and anatomy of aerial and terrestrial roots of Syzygium cumini Skeels with special reference to an adaptive strategy. The aerial roots differ from terrestrial roots by its ephemeral nature, reddish pink to brownish colour with plenty of lenticels, lysigenous cavity and polyarch condition. Origin and occurrence of aerial roots with plenty of lenticels, lysigenous cavity in cortex and periderm indicate high adaptive strategy under stress ecosystem for survival and sustainable growth. An adaptive significance of morphological and anatomical features in dimorphic roots has been evaluated.


Singh L.J.,Andaman and Nicobar Regional Center
Taiwania | Year: 2014

In the present study Musa indandamanensis L. J. Singh is described and illustrated as a new species from Little Andaman, the Bay Islands, India.


Jagadeesh Ram T.A.M.,Andaman and Nicobar Regional Center | Sinha G.P.,Central Regional Center
Phytotaxa | Year: 2016

A world key to the genera Cryptothecia and Myriostigma is presented. Four species of Cryptothecia: C. albomaculans, C. elata, C. elongata and C. superphyllinica, and a Myriostigma: M. nicobaricum are described as new to science from the Andaman and Nicobar Islands, India. Cryptothecia albomaculans has a heteromerous thallus, whitish ascigerous areas not elevated above the thallus, ellipsoid, 9-11 × 3-5 septate ascospores of 47-57 × 24-30 μm and produces 2’-O-methylperlatolic acid. Cryptothecia elata has a homoiomerous thallus with distinctly raised ascomata, ascospores of (72-)84-122 × (25-)36-62(-72) μm and contains 2’-O-methylmicrophyllinic acid. Cryptothecia elongata has a heteromerous thallus, raised, irregular, 1-4 mm wide ascigerous areas covered by a photobiont layer, narrowly ellipsoid-oblong, 16-24 × 2-6 septate ascospores of 90-114 × 21-30 μm, and produces gyrophoric and lecanoric acids. Cryptothecia superphyllinica has a homoiomerous thallus, whitish, raised, rounded to linear ascigerous areas 0.5-1.5 mm in diam., broadly ovoid to ellipsoid, 9-15 × 3-6 septate ascospores of (45-)58-76(-80) × (22-)24-33(-38) μm and 2’-O-methylsuperphyllinic acid. Myriostigma nicobaricum has a homoiomerous thallus, whitish, raised, rounded, ascigerous areas 0.3-0.8 mm in diam., broadly ellipsoid to ovoid, 8-11 × 2-4 septate, 34-48 × 16-22 μm ascospores and confluentic acid. Cryptothecia aleurodes, C. eungellae and C. striata are new additions to the lichen biota of India. Ascospores of Cryptothecia eungellae are described for the first time and illustrated. © 2016 Magnolia Press.


Jagadeesh Ram T.A.M.,Andaman and Nicobar Regional Center
Lichenologist | Year: 2015

Eight species of Herpothallon are recorded from the Andaman Islands, four of which are described as new: Herpothallon coralloides, H. globuliferum, H. lutescens and H. minutum. All these new species have a non-pigmented thallus, prothallus, hypothallus and pseudisidia. Herpothallon coralloides and H. lutescens possess cylindrical pseudisidia whereas H. globuliferum and H. minutum have granular to globose pseudisidia. Herpothallon globuliferum is foliicolous. Herpothallon echinatum, H. granulare, H. granulosum and H. philippinum are reported for the first time from the Andaman Islands. A key to the Indian species is provided. Heiomasia pallescens (Graphidaceae), a byssoid taxon with a disc-shaped isidioid structure, is also described as new to science. © British Lichen Society 2014.


Jagadeesh Ram T.A.M.,Andaman and Nicobar Regional Center
Phytotaxa | Year: 2014

Four new species in Roccellaceae: Bactrospora littoralis, B. medians, Chiodecton andamanicum and Sagenidiopsis atroalba are described from the Andaman Islands, India. Bactrospora littoralis has acicular, 7-septate Patellarioides-type ascospores whereas B. medians has biclavate, 15-24-septate, Homalotropa-type ascospores. Chiodecton andamanicum has much small ascomata, thin, hyaline to pale brown hypothecium and 4-5-septate ascospores. Sagenidiopsis atroalba has a byssoid thallus with white prothallus, dark brown to blackish hypothallus and smaller ascomata, asci and ascospores. Bactrospora carolinensis (Ellis & Everh.) R.C. Harris, Opegrapha apomelana A. Massal., O. dekeselii Ertz, O. irosina Vain. and O. robusta Vain. are reported as new records for India. © 2014 Magnolia Press.


Jagadeesh Ram T.A.M.,Andaman and Nicobar Regional Center
Phytotaxa | Year: 2016

In the floristic revision on the lichens of the Andaman and Nicobar Islands three more species in the family Roccellaceae are described as new to science: Chiodecton norsticticum sp. nov., Enterographa nicobarica sp. nov. and Gyrographa nigrofusca sp. nov. Chiodecton norsticticum has 7-septate small ascospores and norstictic acid. Enterographa nicobarica has simple to branched lirelliform ascomata in pseudostromata, 5–7-septate ascospores and lacking lichen substances. Gyrographa nigrofusca has simple to substellate lirelliform ascomata, 7-septate ascospores and lacking lichen substances Chiodecton norsticticum and Enterographa nicobarica are recorded on coconut palms. © 2016 Magnolia Press.

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