Documentation of Tree Species Within Mizoram Science Centre, Berawtlang, Aizawl, India, with Notes on Their Ethnomedicinal Values
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Volume 19, issue 3, pages 63–78 30 September 2019 https://doi.org/10.33493/scivis.19.03.01 ORIGINAL ARTICLE Documentation of tree species within Mizoram Science Centre, Berawtlang, Aizawl, India, with notes on their ethnomedicinal values Lalrinkimi1*, R.K. Lallianthanga2 1Mizoram Science Centre, Berawtlang, 796017, India 2Directorate of Science and Technology, Mizoram New Capital Complex 796001, India This study provides a first report of the various tree species prevailing in the Received 26 April 2019 Accepted 16 July 2019 tropical semi-evergreen forest within Mizoram Science Centre, Berawtlang, Aizawl in relation to their diversity; and also mentions traditional ethnomedicinal and *For correspondence: [email protected] economic uses of the species. A total number of 776 individual trees were assessed within the study site belonging to 74 different species representing 61 genera and Contact us: [email protected] 34 families. Among these, 55 tree species have been reported by previous workers to possess indigenous medicinal values. The most abundant tree species at the study site was found to be Callicarpa arborea (hnahkiah) of Verbenaceae comprising 14.30% of the total trees assessed, followed by Anogeissus acuminata (zairum) of Combretaceae with 12.62%, and Schima wallichii (khiang) of Theaceae with 10.56%. A concise list of the species recorded along with their ethnomedicinal and economic uses have been presented here. The prospect of in situ conservation of tree species is briefly highlighted. Keywords: Tree species, ethnomedicinal trees, in situ conservation, Mizoram Science Centre, Documentation. Introduction Among the 36 biodiversity hotspots of the world, a wealth of medicinal plants as reported by various 2,4-6 Mizoram, one of the northeastern states of India workers. The natural forests of the tropical and forms a part of the Indo-Myanmar hotspot region. sub-tropical forests of Mizoram are highly These hotspots are characterized by highest levels of overexploited for medicinal plants, collection of fuel 7 endemism with corresponding high loss of natural wood and timber, and for shifting cultivation. habitats.1 It has been reported that Northeast India The study area, Mizoram Science Centre (MSC) has nearly 64% of its total geographical area under campus, which is under the jurisdiction of the forest cover, harboring approximately 7500 Government of Mizoram falls under tropical semi- angiospermic species.2 Mizoram shares international evergreen forest based on classification by 8 boundaries with Bangladesh in the West, and with Champion and Seth. The tropical forests have been Myanmar in the East and South. It also shares described to offer essential ecological services interstate borders with Assam, Tripura and Manipur. including habitat preservation and species The forest cover in Mizoram is 18,186 sq km conservation for both flora and fauna, and 9 accounting for 86.27% of its total geographical area.3 prevention of soil erosion. It was assumed that the The state has a rich diversity of flora and fauna with study site also harbors a diverse number of tree ISSN 0975-6175 (print) /2229-6026 (online) | CODEN SVCIC9 © The Author(s) 2019 | Published by Mizo Academy of Sciences | CC BY-SA 4.0 Volume 19 | Issue 3 | July–September 2019 species in its tropical semi-evergreen forest which 43'55.09''N-23°43'53.01''N latitudes (Figure 1). may be associated with a wealth of fauna. To confirm Documentation of the tree species present within this assumption, a detailed documentation of the the study area was conducted out during March to tree species composition was accomplished as a first July 2018. During this period, frequent field surveys step towards understanding the floristic diversity of the site (Figure 2) were carried out for collection, within the area. identification and documentation. Trees having This paper presents the prevailing tree species of diameter at breast height (DBH) larger than 5 cm the area in relation to their diversity and indicates were selected for assessment. Photographs of the ethnomedicinal and traditional economic uses of the plants were taken in situ for multiple tree species, tree species. The area was found to harbor a number and for others, plant parts including branches with of traditionally important medicinal plants, and the leaves, flowers and fruits were collected and mode of utilization of these ethnomedicinal plants photographed for identification purposes. as reported by previous studies have been Photographs of the species were taken using Canon emphasized in this paper. The present study is 600D camera equipped with 18–135 STM lens. significant as it is highly anticipated to aid in Various local key informants and taxonomists from conservation and management of the area’s flora in Pachhunga University College, Aizawl, were the future, when plans for augmenting and employed and consulted in assigning the vernacular developing the infrastructure of MSC are designed names of plant specimens. Descriptions of species and formulated. Information generated from this were prepared using standard literatures including tree species inventory will contribute to enhance our the books of Flora of Mizoram Vol II,10 and The Book knowledge regarding tropical forest biodiversity of of Mizoram Plants.11 Threat assessment of the the state. species was made based on The IUCN Red List of Threatened Species.12 Materials and Methods Results The study site, Mizoram Science Centre, has an area of 23.057 sq km and lies in the eastern part of Species composition Aizawl, the capital of Mizoram. It is located between 92°45'53.85''E-92°45'55.74''E longitudes and 23° In this study, a total number of 776 individual Figure 1 | Location map of Mizoram Science Centre, Figure 2 | Satellite image of Mizoram Science Centre, Berawtlang. Berawtlang. 64 www.sciencevision.org Volume 19 | Issue 3 | July–September 2019 trees were assessed within the study site which Aporosa octandra (Buch.-Ham. ex D. Don) belongs to 74 different species representing 61 Vickery. Family: Euphorbiaceae. Mizo Name: genera and 34 families. Among these, 55 species Chhâwn-tual. Mode of Utilization: Stem-bark were previously reported by various workers to decoction is taken against stomach ulcer, gout, possess medicinal values. Table 1 provides a detailed rheumatism, diarrhea and dysentery. Young account of the different tree species documented leaves decoction is also taken for stomach from the study area with their economic uses. ailments. 2,5,6,11 Ethnomedicinal plants Areca catechu Linn. Family: Arecaceae. Mizo Name: Kuhva-kung. Mode of Utilization: Seeds The ethnomedicinal tree species with their are taken against intestinal worms. A powdered medicinal usage as reported by previous works are mixture of the nuts with bulb of Aginata indica L., as follows: root of Cissisrependa Vahl. and leaves of Piper betle L. are made into pills and taken during 2,11 Acer oblongum Wall. ex DC. Family: Aceraceae. menstrual periods by Bru people. Mizo Name: Thing-phing-phi-hlip. Mode of Use: Decoction of leaves and bark used against fever, Artocarpus heterophyllus Lam. Family: stomach problem, food poisoning and retained Moraceae. Mizo Name: Lâm-khuang. Mode of placenta.11 Utilization: Root decoction used against asthma, diarrhoea, fever and sterility in women. Leaves are Alangium chinense (Lour.) Harms. Family: useful against fever, skin diseases, wounds, boils, etc. The milky juice is useful for herpes eruptions. Alangiaceae. Mizo Name: Ar-sa-rim-nam. Mode 4,11 of Utilization: Roots and stems are used as carminative and blood tonic, for treating wounds, rheumatism etc. 11 Artocarpus lakoocha Roxb. Family: Moraceae. Mizo Name: Thei-tât. Mode of Utilization: Seed Albizia chinensis (Osb) Merr. Family: used as laxative. Crushed bark juice is applied on Mimosaceae. Mizo Name: Vang. Mode of pimples, face acne and crack skin. Bark powder is 2,4,11 Utilization: A brew of the bark is used in cuts, applied on sores to extract excretion. scabies and various dermal problems. 2,11 Bauhinia variegata L. Family: Caesalpiniaceae. Albizia odoratissima (L.f.) Benth. Family: Mizo Name: Vau-be. Mode of Utilization: Bark/ Mimosaceae. Mizo Name: Thing-ri. Mode of leaves decoction taken orally against diabetes, menstrual disorders, intestinal worms, diarrhoea, Utilization: Bark and leaves are used against 2,11 certain ailments. 11 piles and dysentery. Albizia procera (Roxb.) Benth. Family: Bischofia javanica Blume. Family: Mimosaceae. Mizo Name: Kang-ṭêk. Mode of Euphorbiaceae. Mizo Name: Khuang-thli. Mode Utilization: Decoction of bark taken against of Utilization: Juice of tender leaves taken orally pinworms/threadworms etc. Poultices are against tonsillitis, cholera and sores. Its stem and prepared from leaves to treat ulcers. 2,4,11 bark has medicinal uses. Roots are used for 2,5,11 treating chronic rheumatic pain and malaria. Alstonia scholaris (L.) R. Br. Family: Apocynaceae. Mizo Name: Ṭhuam-riat. Mode of Bombax insigne Wall. Family: Bombacaceae. Utilization: Decoction of the bark and leaves are Mizo Name: Pâng. Mode of Utilization: Bark taken to treat headache, influenza, bronchitis, and decoction with that of Mangifera indica (equal parts) is used for tonsillitis and other throat pneumonia. Bark decoction is used for treating 4,5,11 hypertension, asthma, fever, typhoid, malaria, infections. stomach ulcer, diarrhea and dysentery. Milky juice obtained from bark is applied to snake-bites, Callicarpa arborea Roxb. (Figure 3A). Family: cuts, sores and other skin diseases. 2,11 Verbenaceae. Mizo Name: Hnah-kiah. Mode of Utilization: Bark and leaves decoctions are used Anogeissus acuminata (Roxb. ex DC) Guill. against diabetes, and various forms of stomach Family: Combretaceae. Mizo Name: Zai-rum. ailments including internal bleeding. Decoction of Mode of Utilization: Decoction of bark taken as mixture of leaves with leaves of Byttneria pilosa, hemostatic agent, for stomach problems, stem-bark of Ficus semicordata and whole plant diarrhoea, fever, beriberi, also applied on skin of Phyllanthus fraternusis used for jaundice and 2,4,11 problems like measles, chicken-pox including hepatitis. sprains and burns.