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Ladan RasingamBotanical Survey of India | BSI · Deccan Regional Centre, Hyderabad
Ladan Rasingam
MSc, Mphil, PhD,
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Publications (122)
This new record is of pbytogeographical importance.
Occurrence of the species in the Andamans is of phytogeographically significant.
Crinum andhricum (Amaryllidaceae), a new species from the Northern Eastern Ghats of Andhra Pradesh is described and illustrated. It is closely related to Crinum amoenum and C. stracheyi, but differs in its number of flowers per inflorescence, shape of the perianth lobes and filament length.
Salvia misella Kunth is reported here as an addition to the flora of Andhra Pradesh from Alluri Sitharama Raju district. A detailed description and photographs are provided for easy identification.
The eBook Flora of the Papikonda National Park provides a floristic account of angiosperm species, an area known for its unique vegetation and floral diversity. A total of 970 taxa (including 2 subspecies and 8 varieties) belonging to 576 genera and 119 families are enumerated in this account. One new variety, seven new records for the state, one n...
Beilschmiedia fagifolia Nees var. gaurii M.Gangop. from the Andaman Islands, India represents a distinct species, treated herein as Beilschmiedia gaurii (M.Gangop.) Rasingam & Chakrab., comb. & stat. nov.
A new species, Dicliptera srisailamica (Acanthaceae) is described and illustrated from the Eastern Ghats of Andhra Pradesh and Telangana. This species is closely related to Dicliptera beddomei C.B.Clarke but considerably differs in many characters. Detailed description, distribution and photo plates are provided for easy identification of the new s...
Addition to Flora of Andhra Pradesh
Lepidagathis diffusa C.B. Clarke, an endemic and threatened species known from few localities of Karnataka and Tamil
Nadu, is reported here as a new addition to the flora of Andhra Pradesh. A detailed description, photographs and
distribution map are provided for easy identification.
Two taxa viz. Pancratium verecundum Aiton (Amaryllidaceae) and Tripogon bromoides var. anantaswamianus (Sreek., V.J.Nair & N.C.Nair) Sang.Dev & Prassana (Poaceae) are reported here as additions to flora of Andhra Pradesh from the Alluri Sitharama Raju (ASR) district of Andhra Pradesh, India. A detailed description and photo plates are provided for...
Herbarium collections shape our understanding of Earth’s flora and are crucial for addressing global change issues. Their formation, however, is not free from sociopolitical issues of immediate relevance. Despite increasing efforts addressing issues of representation and colonialism in natural history collections, herbaria have received comparative...
Two taxa, viz., Caralluma adscendens var. bicolor (V.S.Ramach., S.Joseph, H.A.John & Sofiya) Karupp., Ugraiah & Pull. (Apocynaceae) and Distimake quinatus (R.Br.) A.R.Simões & Staples (Convolvulaceae) are reported here as additions to the flora of Andhra Pradesh, India. Detailed description and photo plate is provided for easy identification.
The Papikonda National Park is an important wildlife area in the Eastern Ghats of Andhra Pradesh spreads over 1012.86 km2 in East and West Godavari districts of Andhra Pradesh (Ray et al. 2020). While exploring the floral diversity of this National park, one of the authors (YM) has collected three interesting plant species from Chintur, Gokavaram a...
Amorphophallus mysorensis (Araceae), an endemic and threatened species is newly reported from the Eastern Ghats of Odisha, India. A detailed description and photo plate are provided here for its easy identification.
Ageratum houstonianum Mill. is reported as an addition to the Flora of Telangana from Adilabad District. Detailed description and photo plate are provided for easy identification.
Neanotis tubulosa (G.Don)Mabb. (Rubiaceae) - A new Distributional Record for Andhra Pradesh, India
One of the important wild relatives of crops, Oryza latifolia is documented from Eastern Ghats of Telangana. A detailed description with a photo plate is provided to facilitate easy identification.
Twenty species are reported here as new additions to the flora of Telangana state from Amrabad Tiger Reserve, Kinnerasani and Manjeera Wildlife Sanctuaries. Out of twenty species, four species viz. Alysicarpus gautalensis Gholami & A.K.Pandey, Amorphophallus konkanensis Hett., S.R.Yadav & K.S.Patil and Heterostemma disciflorum (Hook.f.) Swarupan....
Diospyros orientalis A.G. Linan, G.E. Schatz & Lowry (Ebenaceae) is a later homonym of the fossil species D. orientalis Sanborn and hence a new name D. linanii Rasingam & Karthig. is proposed to replace the later homonym.
Flemingia nana Roxb. (Leguminosae: Cajaninae) is reported here as an addition to the flora of Telangana from the Eastern Ghats (Kinnerasani Wildlife Sanctuary) of Telangana. A detailed description and a photo plate are provided to facilitate easy identification.
Croton hirtus L’ Her., an aggressive invasive weed, native to W. Indies and Central and South America is reported as an addition to the Flora of Andhra Pradesh from Chittoor District. Detailed description and photo plate are provided for easy identification.
The combination Fraxinus dubia (Willd. ex Schult. & Schult.f.) P.S.Green & M.Nee proposed based on Fagara dubia Willd. ex Schult. & Schult.f. is an illegitimate later homonym of Fraxinus dubia Budantzev, a fossil species described from Kazakhstan. The validly published Fraxinus schiedeana Schltdl. & Cham. is the next available correct name for the...
The occurrence of the genus Mitrasacme Labill. in Telangana is confirmed in this communication. Besides M. pygmaea R.Br. is recorded as new to the flora of Telangana. Brief generic and species descriptions, key to the species, phenology, distribution and colour photo plate is provided for identification.
Stemodia verticillata native to Neotropical region, is reported here as an addition to the flora of Eastern Ghats from Papikonda National Park, Andhra Pradesh. A detailed description, photo plate and key to the Indian species is provided here to facilitate its easy identification.
Four species viz., Pavetta breviflora DC. Wendlandia thyrsoidea Steud. (Rubiaceae), Leucas diffusa Benth. (Lamiaceae), and Euphorbia senguptae N.P. Balakr. & Subr. (Euphorbiaceae) are reported here as additions to the flora of Telangana state from Amrabad Tiger Reserve. Brief descriptions, phenology and distribution and colour photos are provided f...
Salomonia cantoniensis Lour. (Polygalaceae) is reported here as additions to the flora of Southern India from Papikonda National Park of Andhra Pradesh. Detailed descriptions along with photo plate are provided for its easy identification.
Two plant species viz., Abutilon bidentatum Hochst. ex A.Rich. (Malvaceae) and Mimulus strictus Benth. (Phrymaceae) are reported here as additions to the flora of South India from the Manjeera Wildlife Sanctuary, Telangana.
Notes: The species was collected from a single locality in protected area i.e. Amrabad Tiger Reserve.The species is recognized by its unique camphor-aroma and dense silvery hairs on joints and spikelets. Further, it is distinguished from its allied species by lower glume of sessile spikelets with silky hairs below the half and without pit of lower...
Melhania futteyporensis Munro ex Mast and Sida sivarajanii Tambde, Sardesai & A.K. Pandey belonging to the family Malvaceae are reported here as additions to the flora of Telangana from Amrabad Tiger Reserve and Kinnerasani Wildlife Sanctuary respectively. Brief descriptions along with phenological data and colour photo plates are provided for easy...
Herbarium collections shape our understanding of the world's flora and are crucial for addressing global change and biodiversity conservation. The formation of such natural history collections, however, are not free from sociopolitical issues of immediate relevance. Despite increasing efforts addressing issues of representation and colonialism in n...
Two endemic grass species viz., Dimeria bialata C.E.C. Fisch. and Heteropogon polystachyos (Roxb.) Schult. are strictly endemic to India have been reported from Eastern Ghats of Telangana as new additions to the grass flora of Telangana State, India. A brief description and colour photo plates are provided for easy identification.
Phoebe nicobarica sp. nov. (Lauraceae) is
described from the Great Nicobar Island of Andaman &
Nicobar Islands, India. The new species is closely related
to Phoebe macrophylla Blume and Phoebe kunstleri
Gamble, but differs by the white glaucous lower leaf
surface, indumentum type and fruit shape.
Anadendrum latifolium is reported as new addition to the flora of India from Andaman & Nicobar Islands and a lectotype is designated from the existing type materials.
The family Lauraceae Jussieu (1789: 80) is one of the economically important families in the Magnoliopsida-Laurales, distributed mostly in the tropical and subtropical forests of the New and the Old World, comprising 56 genera and 2700 species (Mabberley 2017). We came across two names viz., Litsea microphylla (Elmer 1908: 375) Merrill (1923: 196)...
A new variety of Dichanthium caricosum (L.) A. Camus (Poaceae) is described and illustrated from Papikonda National Park, Andhra Pradesh, India. The new variety differs from the typical variety by its two lobed lemma of pedicelled spikelets and solitary racemes.
A new variety of Amorphophallus konkanensis Hett., S. R.Yadav & K. S. Patil (Araceae) is described and illustrated here from the Kinnerasani Wildlife Sanctuary of Telangana state, India.
A new species Brachystelma telanganense (Apocynaceae: Asclepiadoideae-Ceropegieae) is described from the Amrabad Tiger Reserve of Telangana state, India. This species is similar to B. gondwanense Govekar, Kahalkar & Sardesai but differs in certain vegetative and floral characters.
Dillenia tirupatiensis sp. nov. (Dilleniaceae) is described from Chittoor District of Eastern Ghats, Andhra Pradesh. It is closely allied to D. hookeri, but differs in its leaf morphology, pedicel and bracteole length, flower colour, the arrangement of style pattern, and number of ovule rows in the carpels.
Species abundance distributions (SADs) characterise the distribution of individuals among species. SADs have rarely been explored on islands and the ecological processes shaping SADs are still not fully understood. Notably, the relative importance of disturbance regime in shaping plant SADs remains poorly known. We investigate the relative importan...
A total of 363 species have been documented from the Sathyamangalam Forests.
Habenaria reniformis (D. Don) Hook.f., (Orchidaceae) collected from Papikonda National Park, East Godavari district (Andhra Pradesh) is reported here as a new distributional record for the state. Detailed description along with a photo plate is provided for easy identiication.
The genus Ziziphus Miller (1754: 1547) is one of the economically important genera in the family Rhamnaceae distributed in the tropical and subtropical regions (Mabberley 2008). About 135 species are reported from the world, and most of the species are confined to Asia and America. A few of them extend to the Pacific Islands and Australia (Bhandari...
Dendrophthoe gamblei (Loranthaceae), a new species from the Peninsular India is described and illustrated along with conservation status. Apparently new species is similar to Dendrophthoe memecylifolia (Wight and Arn.) Danser, but strictly differs in respect to its morphology of vegetative and floral characters. A taxonomic key to the species of De...
In this study, we carried out an assessment of IUCN conservation status of Wendlandia angustifolia Wight ex. Hook.f. (Rubiaceae), based on field data on populations and distribution status of this species that is narrowly endemic to southern Western Ghats. This species was earlier presumed to be extinct, however, our data suggests that it should be...
The lectotype is designated for Justicia anfractuosa C. B. Clarke (Acanthaceae), a rare endemic species from Northeast India.
Linostoma decandrum (Roxb. ) Wall. ex Endl. belonging to the family Thymelaeaceae is known from Assam and Manipur states of northeast India is reported here as a new addition to the flora of Andaman & Nicobar Islands.
A new species Acrachne borii is described from Seshachalam Biosphere Reserve of Eastern Ghats, Andhra Pradesh, India. It shares morphological similarities with Acrachne henrardiana, A. racemosa and A. sundararajii but differs in its habit, number and size of spikes, number of florets and size of glumes and lemmas.
The species Terminalia kanchii Dhabe, T. manii King, T. maoi Dhabe and T. shankarraoi Dhabe were identified to be conspecific with T. citrina (Gaertn.) Roxb. and therefore reduced to synonyms of the latter. Terminalia procera Roxb., treated recently as a synonym of T. catappa L. is reinstated here as a distinct species, and for the name, a lectotyp...
Glossocardia andamanica, sp. nov. (Asteraceae), is described from Andaman and Nicobar Islands, India. This new species morphologically most closely resembles the Malesian species, G. calva (Sch.-Bip. ex Miq.) Veldkamp in having 3-foliolate leaves and awned achenes but differs in colour of ray florets and number of lobes in ray-lip and 4-merous disc...
Glossocardia andamanica (Asteraceae) is described from Andaman and Nicobar Islands, India. This new species morphologically most closely resembles the Malesian species, G. calva in having 3-foliolate leaves and awned achenes but differs in the colour of ray florets and the number of lobes in ray-lips, and in 4-merous disc florets.
The Telangana State Biodiversity Board under the UNEP-GEF-MoEFCC-ABS Project title “Strengthening the implementation of Biological Diversity Act and Rules with focus on Access and Benefit Sharing” has prepared the Telangana State Biodiversity Field Guide comprising the flora and fauna of the Telangana State for identification of various species dur...
The genus Elatostema J. R. Forst. & G. Forst. belongs to the tribe Elatostemateae Gaudich. (1830: 493) of the family Urticaceae. It is one of the largest genera in the family with c. 626 accepted names and mostly distributed from tropical to subtropical regions of Africa, Asia and Oceania (Tseng & Hu, 2015; Lin et al. 2018; Fu et al. 2019). Recentl...
A new distributional record to Andhra Pradesh
Rhynchosia jacobii Chandrab. & B.V.Shetty is an endemic species reported here as a new addition to the Flora of Eastern Ghats, collected from Prakasam District of Andhra Pradesh, India. The detailed description and photo plate is provided for easy identification.
Caralluma diffusa (Wight) N. E. Br., so far known from Kerala and Tamil Nadu, is reported from two hill ranges in Eastern Ghats of Andhra Pradesh and Odisha. Detailed description, photographs, keys and notes on its distribution is provided here.
A new subspecies, Tylophora perakensis King & Gamble subsp. andamanica is
described and illustrated from Little Andaman Island, Andaman and Nicobar Islands, India. A new combination, Tylophora hookeriana is proposed and the distributional status of T. indica Merr. var. intermedia M.A. Rahman & Wilcock is also discussed based on the fresh collectio...
A new species Tripogon nallamalayanus is described from Nagarjunasagar Srisailam Tiger Reserve of Nallamala forests, Telangana, India. This new species most closely resembles Tripogon trifidus, but differs in spikelets and lower glumes lengths and lemma and palea shapes.
The endemic taxon, Cyathocline purpurea (Buch.–Ham. ex D. Don) Kuntze var. alba Santapau (Asteraceae) is reported as a new addition to the Flora of South India collected from Kawal Tiger Reserve of Telangana State, India. A detailed description, distributional map and photographs are provided for easy identification.
Ipomoea clarkei Hook.f. is an endemic species to Maharashtra state is reported here as a new addition to the Flora of Eastern Ghats from Nagarjuna Sagar Srisailam Tiger Reserve, India. The detail description, notes, distributional map and colour plates are provided for easy identification.
A new species of Crotalaria is described from the Amrabad Tiger Reserve in the Nallamala forest, Telangana, India. It is allied to Crotalaria orixensis Rottl. ex Willd. and Crotalaria senegalensis (Pers.) DC., but differs from both species in leaf, stipule, bract and floral characters.
Aim: To determine the role of regional forcing on plot-level species diversity and composition, and
to quantify the relative importance of biogeographical and climatic factors in explaining woody
plant diversity and composition at the local-, island- and archipelago-scale.
Location: Forty-one tropical islands of the Indo-Pacific region from Madagas...
Typhonium inopinatum Prain (Araceae) is reported here as a new addition to the Flora of South India, collected from Rangareddy district of Telangana state. A detailed description and colour photographs are provided to facilitate identification.
Three species viz., Amorphophallus konkanensis Hett., S. R. Yadav & K. S. Patil, Drimia polyantha (Blatt.& McCann) Stearn and Kalanchoe bhidei T. Cooke are reported for the first time from Eastern Ghats of Andhra Pradesh.
While identifying a species of Amorphophallus Blume ex Decaisne (1834: 366), nom. cons. collected from the Kadapa district of Andhra Pradesh, India, the authors came across the protologue of Amorphophallus candidissimus X.Gong & H.Li (2012: 201) described from Vietnam, but it was not validly published, as two different collections (leaf and inflore...
The genus Impatiens Linnaeus (1753: 937) is distributed mostly in the tropical and subtropical regions of the Old World as well as in the northern temperate regions with more than 1,000 species (Janssens et al. 2006, Jyosna & Janarthanam 2011). During the taxonomic study of the genus Impatiens in India (Gogoi & Borah 2015, Gogoi & Arisdason 2016, G...
Emilia sonchifolia (L.) DC. (Asteraceae) and Acalypha malabarica Mull.-Arg. (Euphorbiaceae) are reported here as additions to the flora of Andaman & Nicobar Islands.
Three species viz., Trichosanthes bracteata (Lam.) Voigt (Cucurbitaceae), Leucas lanata Wall. ex Benth var. candida Haines (Lamiaceae), Cyperus pulchellus R.Br. (Cyperaceae) are reported here as new additions to the flora united Andhra Pradesh. Detailed descriptions and line drawings are provided for easy identification.
A new sub population of Cycas beddomei Dyer (Cycadaceae), hitherto belived to the endemic to the Sesachalam hills (Thirupathi & Kadapa Hills) of Andhra Pradesh, India. Hence its global distribution is hereby revised Endemic to Sesachalam & Velikonda hills of Eastern Ghats of AndhraPradesh. Combined datasets of our earlier studies with the latest in...
Hyoscyamus albus L. is reported here for the first time for India from Hyderabad, Telangana. A detailed description, notes and photographs are provided for easy identification.
Hyoscyamus albus L. is reported here for the first time for India from Hyderabad, Telangana. A detailed description, notes and photographs are provided for easy identification.
Fioria vitifolia (L.) Mattei (Malvaceae), Combretum acuminatum Roxb. (Combretaceae), Marsdenia tinctoria R. Br. (Apocynaceae) Phoebe lanceolata (Nees) Nees (Lauraceae) and Schoenoplectus mucronatus (L.) Palla (Cyperaceae) collected from Little Andaman Island are reported to be new additions to the flora of the Andaman and Nicobar Islands.
Fioria vitifolia (L.) Mattei (Malvaceae), Combretum acuminatum Roxb. (Combretaceae), Marsdenia tinctoria R. Br. (Apocynaceae) Phoebe lanceolata (Nees) Nees (Lauraceae) and Schoenoplectus mucronatus (L.) Palla (Cyperaceae) collected from Little Andaman Island are reported to be new additions to the flora of the Andaman and Nicobar Islands.
Gymnanthemum amygdalinum is reported here as a new addition to the Flora of Peninsular India collected from Warangal district of Telangana State, India. The detail description and colour plates are provided for easy identification.
A new species, Glochidion tirupathiense Rasingam, Chorghe, Prasanna & Sankara Rao is described from Tirumala hills of Seshachalam Biosphere Reserve, Andhra Pradesh, India. It is allied to G. ellipticum Wight and differs in ovary, style and fruit characters.
Brachystelma penchalakonense, a new species from the Nellore District of Andhra Pradesh, India is described and illustrated. This large-flowered species is related to B. maculatum.
Knema andamanica (Warb.) W. J. de Wilde subsp. peninsularis W. J. de Wilde and Ficus annulata Blume are
reported here as new additions to the flora of India from Little Andaman Island. Detailed information on taxonomy, description, ecology, distribution, specimens, and illustrations are provided.
Tripogon tirumalae, a new species of grass from the Seshachalam hill ranges, Andhra Pradesh, India, is described and illustrated. The new species differs from Tripogon sivarajanii in having ciliate membranous ligules, a shorter inflorescence, more florets, bearded lemma base, and a median awn longer than the lemma; and from Tripogon trifidus inhavi...
The Nilgiri Biosphere Reserve (NBR) of southern India was surveyed to list out the indigenous brooms used by the tribal communities. A total 18 plant species were recorded as a source of broom in the NBR. Of which the family Arecaceae was dominant with 3 species. The most common wild plants that are used for broom making in NBR include: Phoenix lou...
Dendrocnide sinuata (Blume) Chew and Laportea interrupta (L.) Chew belonging to the family Urticaceae are reported as new additions to the flora of Andaman and Nicobar Islands. Descriptions, line drawing, and photographs are presented for easy identification.
Objective
To conduct an ethnobotanical studies and collect information about the wild edible plants collected and utilized by the Irula tribes of Pillur valley, Coimbatore District, Tamil Nadu, India.Methods
The study was conducted among the Irula peoples of Pillur valley through survey, interview and field work along with the knowledgeable individ...
Sesuvium portulacastrum (L.) L. collected from Little Andaman Island is reported as a new addition to the flora of Andaman and Nicobar Islands. It also forms a new record of the family Aizoaceae.
Objective
To identify and understand the utilization and prioritization of medicinal plants used as tooth sticks by the select communities of Andaman and Nicobar islands.Methods
The information was collected through questionnaires and discussions among the informants in their local language regarding the plant parts used.ResultsA total of 11 plant...
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