D.K. Agrawala

D.K. Agrawala
Botanical Survey of India, Headquarters Kolkata · Publication Section of Botanical Survey of India

Doctor of Philosophy
Engaged in Systematics, Conservation and IUCN Red Listing of Indian Angiosperm, specially Orchids and Medicinal Plants

About

92
Publications
22,754
Reads
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119
Citations
Citations since 2016
39 Research Items
64 Citations
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Introduction
I use to practice plant taxonomy, more particularly the angiosperms and Orchidaceae. Also I love to learn on systematics of medicinal plants and their bioprospection, the AYUSH system of medicine, distribution, phytogeography and conservation of Indian plants. I am a trained IUCN red list assessor and involved in threat status assessments of Indian plants including Orchids. Presently I am leading the team for "Flora of India" vol. 25 and 26 containing Hydrocharitaceae, Burmanniaceae & Orchidacea
Additional affiliations
September 2012 - present
Botanical Survey of India
Position
  • Researcher
Description
  • I work here for the Floristic Research and documentation of Sikkim Himalayan Flora; Systematics and Conservation of Orchidaceae; IUCN Red Listing; Flora of India; Taxonomic Revision on Orchidaceae and other activities related to training, capacity building etc.
Education
March 2003 - August 2009
Botanical Survey of India
Field of study
  • Taxonomic studies on the genus Eria (Orchidaceae) in India

Publications

Publications (92)
Article
Full-text available
Bulbophyllum nodosum (Rolfe) J.J. Sm. [Orchidaceae-Epidendroideae-Malaxideae- Dendrobiinae], an Indian endemic species, discovered originally from the Western Ghats in Tamil Nadu and later from the Eastern Himalayas in Arunachal Pradesh, has been recorded from Sikkim Himalaya for the !rst time, thereby extending its distribution further in the Hima...
Article
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Morphological variation in Gastrochilus calceolaris (Buch.-Ham. ex Sm.) D.Don has been studied based on live and herbarium specimens. As a result, Gastrochilus carnosus Z.H.Tsi and Gastrochilus garhwalensis Z.H.Tsi are treated here as heterotypic synonyms of Gastrochilus calceolaris. Similarly, Gastrochilus corymbosus A.P.Das & S.Chanda has been sy...
Article
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Gastrochilus minimus J.W.Li, D.P.Ye & X.H.Jin, a recently described orchid from China, is taxonomically merged with Gastrochilus sessanicus A.N.Rao. The former name is not effectively published as of September 2021, even after online availability of the ‘In Press, Corrected Proof’ version since February 2021 on the journal’s website. We intend to a...
Article
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Phreatia albofarinosa Ormerod is reported for the first time from Arunachal Pradesh, Manipur, Mizoram and Sikkim (India). Its specimens preserved in different Indian herbaria were found as erroneously identified either as Phreatia elegans Lindley or as Phreatia laxiflora (Blume) Lindley and have now been properly determined. A detailed description...
Article
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Gastrochilus yei J.W. Li & X.H. Jin, a recently described species from China is being reported for the first time from India based on a collection from Sikkim. Detailed description and a photo-plate are provided to facilitate identification of this very less-known species. Its Red List status has been assessed as ‘Critically Endangered’ as per IUCN...
Article
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A new species, Begonia ahooensis P.L.Sherpa, Aditya Pradhan & Arun Chettri, is described from Sikkim, India. A detailed description along with an illustrative photo plate is provided. Affinity with the allied species B. grandis is discussed.
Article
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Morphological characters of Aphyllorchis gollanii Duthie have been studied and compared to those of Aphyllorchis alpina King & Pantling based on protologues, type specimens of both species and other specimens and fresh collections from Indian Himalayan Region. Both species proved to present identical or overlapping characters. Therefore, they are t...
Article
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Stereochilus erinaceus (Rchb.f.) Garay (Orchidaceae) has been collected from Arunachal Pradesh and reported here as new distributional record for India. It was earlier known to occur at Myanmar, Thailand and Vietnam. A detailed description, illustrative photo-plate along with information on phenology, habitat and distribution has been provided for...
Article
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Eria alba Lindl. (Orchidaceae) is reported for the first time for Arunachal Pradesh.
Article
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Eria alba Lindl. (Orchidaceae) is recollected from Mandi district of Himachal Pradesh after a gap of more than a century. It was earlier recorded by Duthie in 1906 from Chamba district of Himachal Pradesh.
Article
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Occurrence of the family Burseraceae in Himachal Pradesh is discussed. Garuga pinnata Roxb. is recorded for the first time from this North-West Himalayan state. Occurrence of Boswellia serrata Roxb. ex Colebr. in this state is confirmed.
Article
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This communication presents the results of revisionary studies on the genus Eria Lindl. (Orchidaceae) in India, with details of its systematic position, classification, generic circumscription and distribution. Artificial key to all the 60 taxa belonging to 13 sections (57 species, 3 varieties) found in India has been provided. All taxa are enumera...
Book
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Sikkim with its array of floral diversity is a microcosm of floristic wealth of the Indian Himalayas . It has about 5068 taxa constituting almost 45% of the flora of the Himalayas. The Sikkim Himalaya is a part of 36 global biodiversity hot spots and 22nd global biodiversity hotspots in India. Khangchendzonga, the third highest peak of the world is...
Technical Report
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DUS Test Guidelines in Mokara
Technical Report
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DUS Test Guidelines in Paphiopedilum orchids
Article
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ABSTRACT The present paper con irms the occurrence of Luisia unguiculata J.J.Sm. (Orchidaceae) in Andaman and Nicobar Islands, India. Detailed description, photographic plate and ecological notes have been provided for the species.
Poster
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Diversity and distribution of the genus Otochilus Lindl. (Orchidaceae) in India.
Article
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Present paper deals with the new distributional record of Duhaldea nervosa (Wallich ex DC.) Anderberg (Asteraceae) in the Indian state of Himachal Pradesh.
Article
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une curieuse orchidée terrestre, a été observée en Arunachal Pradesh, Inde. Bien que l'espèce ait été mentionnée dans la littérature antérieure comme présente dans cet état, la présente collection en constitue le premier spécimen réel collecté en Inde. Pour faciliter son identification sur le terrain, nous proposons ici une brève description de l'e...
Book
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The book contains an updated census of Indian Orchids with all important synonyms and literature citation. It also include information on life form, phenology and distribution of all species in India. 775 species have been represented by nearly 2000 photographs.
Article
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Peristylus orbicularis (Hook.f.) Agrawala, H.J. Chowdhery & S. Choudhury, a short-lived, terrestrial orchid, is reported here as a new distributional record for Arunachal Pradesh. The species was earlier recorded only from Darjeeling and Sikkim. A brief description containing diagnostic features of the species is provided for easy identification. I...
Article
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Attached with the document
Book
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This souvenir book contains the abstracts of papers presented during the National seminar on "Understanding Himalayan Phyto-diversity in a Changing Climate" organized at Botanical Survey of India, Sikkim Himalayan Regional Center, Gangtok.
Article
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Bulbophyllum Petit-Thouars (1822) is one of the largest orchid genera with about 2200 taxa, widely distributed in the tropics (Vermeulen 2014). The main centres of diversity are Asia-Pacific (1700 species), Madagascar (200 species) and New Guinea (600 species). Based on evidence from morphological and molecular data, Vermeulen (2014) recommended a...
Preprint
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ON THE TAXONOMY OF DENDROBIUM LONGICORNU LINDL. (Orchidaceae).
Article
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This paper deals with an Indian endemic species Bauhinia phoenicea B. Heyne ex Wight & Arn., with respect to the number of fertile stamens in its flowers, uses, seed germination in ex situ condition and re-assessment of threat status.
Article
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Critical study of Types, protologues, fresh and herbarium specimens of Herminium monorchis (Linnaeus) Robert Brown and Herminium haridasanii Nageswara Rao has revealed their conspecificity. Accordingly, the later has been reduced here as a heterotypic synonym of Herminium monorchis. Taxonomic consequences of both the taxa have been discussed. A det...
Book
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This is the second volume of Herbal Wealth of Uttarakhand containing information on families Solanaceae to Poaceae.
Article
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Tropidia namasiae C.K. Liao, T.P. Lin & M.S. Tang is reported as a new distribution record to the orchid flora of India from Manipur. Color illustration of the taxon is provided in support of the taxonomic treatment. An artificial key is given for identification of all species of Tropidia hitherto reported from India.
Article
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Eria gloensis (section Cylindrolobus) from Arunachal Pradesh, India, is described and illustrated. Discussion is provided on its distinguishing characters and the taxa it is allied to.
Book
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This book contains information on Plant wealth of Uttarakhand and the uses of the respective species.
Article
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Eria globulifera Seidenf., an interesting sympodial orchid has been reported here as new distributional record for West Bengal.
Article
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Typification of Cyrtopera mannii H.G. Reichenbach [=Eulophia mannii (H.G. Reichenbach) J.D. Hooker] is discussed and a lectotype is selected for this species.
Article
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Eulophia ochreata Lindl. (Orchidaceae), an endemic species to India is reported for the first time from North-East India. Detailed description along with, illustration provided for easy identification.
Article
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Eulophia ochreata Lindl. (Orchidaceae), an endemic species to India is reported for the first time from North-East India. Detailed description along with, illustration provided for easy identification.
Article
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Present paper deals with the occurrence, nomenclature and taxonomy of Eria pulchella Lindl. (Orchidaceae) in India.
Book
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The book deals with the orchid diversity in Western Himalayan states of India. With illustrative introduction on orchid structure and way of description, the book also contains account of 100 western Himalayan Orchids in an illustrated way.
Article
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Present communication describes the threat factors and regulatory mechanism for conservation of Orchids in India. Various issues related to development of national Red List (as per lnternational Union for Conservation of Nature and Natural Resources i.e., IUCN criteria) of the entire Orchid family are also discussed.
Article
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The present paper deals with Vernonia amygdalina Delile, an African medicinal plant belonging to the family Asteraceae which has been found in cultivation in different places of Central and Eastern India as well as an escape from cultivation. The aim of this paper is to report its availability in India, facilitate identity of the species with detai...
Article
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Oreorchis patens (Orchidaceae) is recorded for the first time from India. its detailed description supplemented by photo-plates and information on habitat, phenology and distribution is provided. An artificial key to all taxa occurring under the genus Oreorchis in India is also provided. Its threat status in India context is accessed by applying IU...
Chapter
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During the study of indian Orchidaceae, a novel method of making plant illustrations has been evolved. The methodology and its merits are discussed in detail in the present paper.
Article
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Quality assurance of herbal products may be ensured by proper quality control of the herbal ingredients. In this regard, a rapid, precise, selective, and accurate high performance thin layer chromatographic method of analysis for the determination of ferulic acid in Hemidesmus indicus roots extract was developed and validated. The method employed,...
Article
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Gastrochilus distichus (Lindl.) Kuntze is reported for the first time in Himachal Pradesh and the occurrence of Coelogyne cristata Lindl. in Himachal Pradesh is confirmed.
Article
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A critical study of literature coupled with the study of type and living materials has necessitated the transfer of Herminium angustilabre King & Pantl., Herminium josephi Rchb. f., Herminium kalimpongense Pradhan and Herminium monophyllum (D. Don) P. F. Hunt & Summerh. to the genus Androcorys Schltr. and Herminium orbiculare Hook. f. to the genus...
Book
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The book contains pictorial representation of 26 medicinal plants representing each of the English alphabets A to Z. Each page represent one species with its photograph, names in Hindi, English , Botanical name and uses. This book was targeted to create awareness among the nursery children to learn alphabets in view of Ayurveda.
Article
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Zeuxine affinis (Lindl.) Benth. ex Hook.f. (Orchidaceae), hitherto known from other parts of India is reported for the first time from Arunachal Pradesh. The same is described and illustrated in the present paper.
Article
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Pleione hookeriana (Lindl.) B.S. Williams is reported here for the first time from Garhwal Himalaya. A brief description along with photographs is provided.