Arya Sindhu

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• PhD
• Professor (Assistant) at PSG College of Arts and Science

A new species of Stellaria (Stellaria nagae) is described. It resembles S. sikkimensis from which differs by the shape of sepal (oblong, exceeding the length of petals vs. ovate to lanceolate, equal or shorter than length of petal) , bract (linear, more than 4 mm vs. ovate-lanceolate, up to 8 mm), shape of capsule (oblong vs. ovate), seed surface a...

Polycarpaea borae, a new species is described and illustrated here from Ralegansidhhi, Ahmednagar district of Maharashtra state, India. This new species is similar to Polycarpaea corymbosa, but differs in having narrow leaves, oblong stipules parted into three, oblong bracts longer than sepals, parted into two, bracteole absent, inconspicuous filam...

A new species of Drymaria from the Kohima District (Nagaland of North-East India) is described and illustrated based on both molecular data (the ITS region of nuclear DNA) and morphometric analyses (clustering, PCA, DA, and MANOVA). The new species resembles D. cordata but differs with respect to the shape of the sepal (oblong, incurved at the marg...

A new species of Stellaria—Stellaria bengalensis—from Sangsera forest range (Kalimpong district, West Bengal, India) is described and illustrated. It is morphologically similar to S. media in petal morphology and habit but, differs by absence of bracts, broad ovate sepal, zygomorphic flowers, petals fused till the apex, four stamens, ellipsoid caps...

A new species of Allmania—Allmania janakiae—has been described from vegetational belts near the coastal areas of Kollam district of the state of Kerala. Floral traits like absence of bracteole, shape and length of bract, length of tepals, number of flowers per synflorescence, pollen morphology and lack of aril in the seed clearly delineates the new...

A new species, Impatiens minnamparaensis, belonging to section uniflorae is described and illustrated from southern Western Ghats of Kerala. It is morphologically similar to Impatiens sasidharanii but can easily be distinguished in having ovate-oblong leaf, milky white distal lobe of keel petal, red blotch on lower sepal, pollen architecture and ca...

A new species of Stellaria from the Nelliyampathy hills of Palakkad district (Kerala, SW-India) is described and illustrated. The new species can be considered as part of the S. media group but differs from the various species with respect to bracts, sepals, petals, pollen morphology and seed surface architecture. Molecular analyses (ITS) confirmed...

A new species, Impatiens neo-uncinata, belonging to section Scorpioidae is described and illustrated from Thiruvananthapuram district of Kerala in the southern Western Ghats. It is morphologically similar to Impatiens unicinata, but can easily be distinguished in having milky white distal lobe of keel petal, deltoid shape of standard petals and 1–2...

Some populations identifiable as Alternanthera flavescens were discovered in the Kerala region (SE‐India), representing the first record of the national Flora. A macro‐ and micro‐morphological description based on the plants found, as well as ecological notes, are given. The phenotypic plasticity observed was also discussed.

Amaranthus is a genus taxonomically complex because of its high morphological variability, which led to nomenclatural disorders, misapplication of names, and misidentifications. Floristic and taxonomic studies on this genus are still incomplete, and many questions remain open. Seed micromorphology has been shown to play an important role in the tax...

Three new species of Polycarpaea , Polycarpaea barbellata , P. ebracteata and P. psammophila , are described from the Palakkad district of Kerala, India. The new species are allied to P. corymbosa and P. aurea but can be visibly distinguished by unique character combinations, viz. shape of sepal, petal, bract and bracteole and seed morphology. Deta...

First molecular and morphometric investigations for the genus Allmania are presented. A new species of Allmania from the granite hillocks of Palakkad district (Kerala state, India), is described as A. multiflora. It differs from A. nodiflora by shape and length of tepals, diameter of the gynoecium, diameter and hairiness of seeds, length of bracts,...

Impatiens thulunadensis Sindhu Arya, Biju & V.S.A. Kumar sp. nova (Balsaminaceae) is described from the wetlands of Kasaragod District of Kerala, India. It resembles especially I. kodachadriensis, but differs from it by, e.g., being restricted to muddy places at low elevations, flower colour and shapes of floral parts.

Miliusa agasthyamalana (Annonaceae), a new species from the Western Ghats, India is described and illustrated. The new species is morphologically similar to M.paithalmalayana and M. wightiana. Detailed notes on the species along with its color photographs and illustrations are provided.

Few populations of Amaranthus deflexus L. were observed in Kerala region (SE-India), contributing the first record of this species to the national Flora. A morphological (macro and micro) description of the species, as well as ecological data are given. A note on the phenotypic plasticity exhibited by the taxon is also provided.

Asystasia dalzelliana var. alba, a new variety of the family Acanthaceae is described and illustrated from the southern Western Ghats of Kerala, India. The new variety differs from the typical variety with respect to color of flowers and lack of black blue bands on the anthers. Critical notes along with conservation status of the new variety are pr...

A new species of Ophioglossum from the Western Ghats of Kerala (India)-Ophioglossum madhusoodananii-is described and illustrated. Morphological description as well as original photos and illustrations are given. O. madhusoodananii is similar to O. costatum from which it differs by the shape of rhizomorph and tropophyll, position of sporophore, ster...

Polycarpaea palakkadensis, a new species of Caryophyllaceae from the hillocks of Palakkad District (Kerala, India) is described and illustrated. P. palakkadensis is morphologically similar to P. rangaiahiana from which differs in having fused ovate bracts, capilliform bracteoles, linear stipules, ovate-cordate petals, filaments much shorter than an...

Three new species of Impatiens , Impatiens achudanandanii , I. danii , and I. shailajae , are described from Thiruvananthapuram and Idukki districts of Kerala state (SW-India). Impatiens achudanandanii is similar to I. courtallensis and I. herbicola ; I. danii to I. goughii and I. shailajae is to I. minae and I. scapiflora . The newly described tax...

Indobanalia thyrsiflora is an endemic species occurring in peninsular India (Andhra Pradesh, Karnataka, Kerala and Tamil Nadu States) and Sri Lanka. A nomenclatural study of the basionym Banalia thyrsiflora, published by Moquin-Tandon in Candolle’s Prodromus (year 1849), is carried out and the name is lectotypified on a specimen deposited at P (bar...

Discovery of a new Alternanthera species from India

Amaranthus powelli -a new record for the flora of India, from Kasaragod District

A new species of Ludwigia of Onagraceae discovered from Kerala

A new species of Lepidagathis (Acanthaceae) discovered from the lateritic plateau of Kasaragod, near Ananthapuram Lake temple

A new species of Utricularia,( bladderwort) is reported from Kerala and named after Late Dr. Kamarudheen Kunju

A new species of Amaranthus discovered from Kerala

Amaranthus saradhiana reported for the first time from the state of Tamil Nadu of India

Three populations of Amaranthus powellii were discovered in Kerala region (SE-India), representing the first record of this species for the national flora. A morphological description based on the Indian plants, as well as ecological data are given. A preliminary list of all the Amaranthus species occurring in India, which was never published durin...

A new species of Alternanthera from Kerala (SW-India), named Alternanthera indica, is described and illustrated. A detailed description, photographs, and drawings are provided. The new species resembles A. carcasana, A. paronychioides var. robusta, A. pungens, A. sessilis, and A. tenella for sharing habit and sessile synflorescences, but it differs...

A new species of Alternanthera from the northern region of Kerala (India)-Alternanthera ebracteolata-is described and illustrated. Morphological description as well as original photographs and drawings are provided. A. ebracteolata is morphologically similar to A. tenella from which differs by the peduncled inflorescence, number of flowers per glom...

Ludwigia venugopalanii , a new species of Ludwigia from Western Ghats, Kerala (Southwestern India), is described and illustrated. The new species Ludwigia venugopalanii is morphologically similar to L. palustris from which it differs by alternate phyllotaxy, length and pubescence of calyx tube, absence of bracteoles, shape of ovule and capsule morp...

Lepidagathis ananthapuramensis, a new species of Acanthaceae is described and illustrated from the lateritic plateau of Kasaragod district of Kerala, India. The new species resembles L. keralensis. Critical notes along with conservation status of the new species is provided.

The genus Amaranthus is represented by 18 species in India. Recently a new species viz. Amaranthus saradhiana has been erected from Kerala (Arya et al., 2019). During an extensive field exploration at various geographical locations in the state of Tamil Nadu, India, the authors came across the species A. saradhiana. The specimens were collected fro...

A new species of Utricularia named U. kamarudeenii, from the paddy fields of Kottayam district of Kerala, India, is described and illustrated. The new species resembles U. aurea but differs from it in the length of spur with respect to lower lip, deeply bilobed lower lip, presence of one type of trap having basal mouth without appendages and hexago...

A new species of Amaranthus from Kerala (SW-India)-Amaranthus rajasekharii-is described and illustrated. Macro-and micro-morphological descriptions (with SEM analysis of pollen and seed), as well as original photos and drawings were provided. The new species is similar to A. dubius, from which it differs by stem color, inflorescence structure, gyno...

A new species of Amaranthus from the southern region of Kerala, India is described and illustrated as Amaranthus saradhiana sp. nov. SEM analysis of pollen and seed architectural patterns together with FTIR spectral banding discriminates the taxon from its morphologically allied species, A. spinosus. Detailed description including distribution with...

The spore surfaces of species belonging to the genus Pteris L. shows unique differences in orientation and ornamentation. This can be used as a novel trait for demarcating the species.