P: ISSN NO.: 2321-290X RNI : UPBIL/2013/55327 SHRINKHALA : VOL-II * ISSUE-II*October-2014 E: ISSN NO.: 2349 – 980X Study of Phytodiversity of Sikar District of Rajasthan Abstract The present paper deals with the phytodiversity of Sikar district, based on floristic exploration during the period of 2010-2012. In this work, a total number of 355 species belonging to 246 genera and 80 families of 4 different groups of phytodiversity viz. algae(1), pteridophytes(2),gymnosperm (1) and angiosperms (76) were recorded. Out of total 355 species, 351 species of angiosperms belonging to 242 genera were recorded. Keyword: Phytodiversity, Sikar, Rajasthan. Introduction The district is located in the north-eastern part of the state of Rajasthan. It is bounded on the north by Jhunjhunu district, in the north- west by Churu district, in the south-west by Nagaur district in the south- east by Jaipur district. It also touches Mahendragarh district of Haryana. 2 The district has an area of 7742.44 km , and population of 26, 77, 737 (2011 census). Sikar, Churu district and Jhunjhunu district comprise the Shekhawati region of Rajasthan at 27°13’ N 28°.07’ E/27.21° N 28.12°E. Rashmi Vyas During the recent years Indian botanists have emphasized for intensive exploration and compilation of inventories of plants resources of the Research Associate, country. These inventories will also be helpful in compilation of state and Department of Botany, National flora. Govt Dungar P.G. College, In order to achieve the above objectives, district flora for the Bikaner, Rajasthan. state of Rajasthan has been initiated. In this context, district flora for Tonk (Shetty & Pandey, 1983) and Banswara (Singh, 1983) district of Rajasthan have been published. Besides, flora of Bhilwara (Parmer & Singh, 1982), Pali (Pandey & Singh, 1989), Jalore (Vyas et al., 1985), Bikaner (Parmar et al., 1985), Ganganagar (Singh & Dhillon, 1989) and Nagaur (Sharma & Aggarwal, 2008) district have also been worked out. Intensive botanical exploration work on many district of Rajasthan is in progress. But, no reference regarding the study of phytodiversity of Sikar district has been recorded. The present work is an endeavor to begin with the phytodiversity of this region. For the collection of voucher specimens as future reference and their preservation, herbarium methodology given by Jain & Rao (1976) was followed. All the plant specimens have been authenticated from B.S.I., Jodhpur, F.R.I. Dehradun and preserved in the Herbarium, Suman C. Sharma Department of Botany, Govt. Dungar (P.G.) College, Bikaner (Rajasthan). Lecturer, The taxa are arranged alphabetically under their respective families which Department of Botany, are arranged according to the classification of Bentham and Hooker Govt. Dungar P.G. College, (1862-1883). Identification of the species is based on the flora of Bhandari Bikaner, Rajasthan. (1995) and Shetty & Singh (1987-93) Aim of the Study The Phytodiversity study leads to an up to-date knowledge of the vegetable resources and raw materials; the supplementary food plants and those providing fodder for the animals species that carry medicinal value and the data that throw some light on the Phytogeographical problems. Further, it is difficult for a post-graduate and research department in Botany to function unless the plants occurring in the surroundings are not well known. It is only after correctly identifying them, that one can study their detailed aspects botanical, anatomical, ontogenetically, cytological, and ecological as well as ethenobotanical. Enumeration The name of the plant is followed by locality and collection number. Mennispermaceae Cocculus pendulus(J.R. & G. Forst.) Diels Locality : Aantari, 5039 Tinospora cordifolia (Willd)Miers 3 P: ISSN NO.: 2321-290X RNI : UPBIL/2013/55327 SHRINKHALA : VOL-II * ISSUE-II*October-2014 E: ISSN NO.: 2349 – 980X Locality : Bai, 5332 Malva parviflora L. Papaveraceae Locality : Danta Ramgarh, 5064 Argemone Mexicana Linn. Malvastrum coromandelianum (L.) Garcke Locality :Chirana, 5333 Locality : Harsh Parvat, 5016 Fumariaceae Pavonia zeylanica (L.) Cav. Fumaria indica L. Locality : Rewasa, 5051 Locality : Alakhpura, 5321 Sida accuta L. Brassicaceae Locality : Khatu, 5339 Brassica campestris Linn. Sida cordata (Burm. F.) Borssum Locality : Sirohi Gaon, 5334 Locality : Sanwli, 5029 Coronopus didymus (Linn.)Smith Sida cordifolia L. Locality : Rewasa, 5049 Locality : Rewasa, 5056 Farsetia hamiltonii Royle Sida ovata Forsk. Locality : Dhabai Ki Dhani, 5001 Locality : Khatu, 5083 Lepidium sativum L. Sida rhombifolia L. Locality : Bai, 5078 Locality : Kushalpura, 5160 Sisymbrium irio Linn. Sterculiaceae Locality : Aantari, 5038 Sterculia urens L. Cleomaceae Locality : Kailash, 5109 Cleome gynandra Linn. Waltheria indica L. Locality : Reengus, 5335 Locality : Raghunath Garh, 5192 Cleome viscosa Linn. Tiliaceae Locality : Danta Ramgarh, 5077 Corchorus aestuans L. Capparaceae Locality : Rewasa, 5055 Cadaba fruticosa L. Corchorus depressus (L.) Stocks Locality : Sikar City, 5129 Locality : Dhabai Ki Dhani, 5027 Capparis decidua (Forsk.) Edgew. Corchorus fascicularis Lam. Locality : Sikar City, 5336 Locality : Sanwali, 5032 Polygalaceae Corchorus olitorius L. Polygala erioptera DC. Locality : Rewasa, 5057 Locality : Raghunath Garh, 5189 Corchorus tridens L. Caryophyllaceae Locality : Aantri, 5040 Polycarpaea corymbosa (L.)Lam. Elaeocarpus ganitrus (Roxb.) Locality : Chirana, 5170 Locality : Ganeshwar, 5203 Silene conoidea L. Grewia occidentalis L. Locality : Sanwli, 5028 Locality : Aantri, 5340 Spergula arvensis L. Triumfetta pentandra A. Rich Locality : Harshgaon, 5003 Locality : Khatu, 5091 Portulacaceae Zygophyllaceae Portulaca oleracea L. Fagonia cretica Burm. Locality : Palsana, 5117 Locality : Palsana, 5118 Tamaricaceae Peganum harmala L. Tamarix aphylla (L.)Karst. Locality : Harsh Parvat, 5014 Locality : Rewasa Jhil, 5050 Tribulus alatus L. Tamarix dioica Roxb. ex Roth Locality : Danta Ramgarh, 5065 Locality : Reengus, 5106 Tribulus pentandrus forssk. Var. pentandrus Tamarix indica Willd. Locality : Palasia ,5156 Locality : Rewasa, 5337 Tribulus rajasthanensis Bhandari & Sharma Elatinaceae Locality : Reengus, 5341 Bergia ammannioides Roth Tribulus terrestris L. Locality : Kushalpura, 5161 Locality : Palsana, 5116 Malvaceae Zygophyllum simplex L. Mant. Abutilon indicum ssp.Indicum (L.)Sweet Locality : Reengus, 5105 Locality : Harshgaon, 5002 Oxalidaceae Abutilon pannosum (Forst. f.) Schlecht. Oxalis corniculata Linn. Locality : Danta Ramgarh, 5069 Locality : Kushalpura, 5138 Althaea rosea (L.) Cav. Rutaceae Locality : Sanwali, 5338 Aegle marmelos (L.) Corr. Gossypium arboreum L. Locality : Mehroli, 5343 Locality : Alakhpura, 5307 Citrus medica L. Hibiscus micranthus L. f. Locality : Sikar City, 5344 Locality : Bikaner Ratangarh Road, 5146 Feronia limonia (L.) 4 P: ISSN NO.: 2321-290X RNI : UPBIL/2013/55327 SHRINKHALA : VOL-II * ISSUE-II*October-2014 E: ISSN NO.: 2349 – 980X Swingle Locality :Palsana, 5119 Indigofera linifolia (L. f.) Retz. Murraya koenigii (L.) Spreng. Locality : Bai, 5079 Locality : Chirana, 5166 Indigofera linnaei Ali Simaroubaceae Locality : Sanwali, 5030 Alianthus excels Roxb. Indigofera sessiliflora DC. Locality : Udaipur Vati Road, 5140 Locality : Aantari, 5037 Balanitaceae Indigofera tinctoria L. Balanites aegyptiaca (L.) Del. Locality : Rewasa Jheel, 5052 Locality : Palsana, 5115 Phaseolus vulgaris L. Burseraceae Locality : Khatu, 5090 Boswellia serrate Roxb.ex Cocls. Pongamia pinnata (L) Pierre Locality : Jeen Mata, 5058 Locality : Sikar, 5285 Commiphora mukul (Hook. ex Stocks) Engl. Rhynchosia minima (L.) DC. Locality : Gori Dham, 5042 Locality : Data Ramgarh, 5072 Meliaceae Sesbania sesban (L.) Merrill Azadirachta indica A. Juss. Locality : Bikaner Ratangarh Road, 5153 Locality : Dhabai Ki Dhani, 5021 Tephrosia purpurea (L.) Pers. Celastraceae Locality : Bikaner Ratangarh Road, 5147 Maytenus emarginatus (Willd.) Ding Hou Tephrosia subtriflora Hochst. ex Baker Locality : Raghunathgarh Road, 5188 Locality : Shri Madhopur, 5232 Maytenus senegalensis L. Trifolium alexandrinum L. Locality : Palsana, 5112 Locality : Gawdi, 5311 Rhamnaceae Trigonella incise Benth. Ziziphus mauritiana Lam. Locality : Mau, 5249 Locality : Kushalpura, 5162 Caesalpiniaceae Ziziphus nummularia (Burm. f.) Wight & Arn. Bauhinia racemosa Lam. Locality : Ringus, 5104 Locality : Sikar City, 5284 Ziziphus truncate Blatt. & Hallb. Bauhinia variegate L. Locality : Mau, 5346 Locality : Gori Dham, 5043 Sapindaceae Cassia angustifolia L. Cardiospermum halicaccabum L. Locality : Haspura, 5246 Locality : Harsh Parvat, 5015 Cassia fistula L. Dodonaea viscosa (L.) Jacq. Locality : Harsh Parvat, 5017 Locality : Alakhpura, 5327 Cassia javanica L. Anacardiaceae Locality : Udaipur Vati Road, 5131 Rhus mysurensis G. Don. Cassia occidentalis L. Locality : Fatehpur, 5297 Locality : Chaurana Ka Bas, 5228 Moringaceae Cassia roxburghii DC. Moringa Oleifera Lam. Locality : Jaipur Road Sikar, 5125 Locality : Sirohi Gaon, 5179 Cassia senna Fabaceae Locality : Laxmangarh, 5270 Abrus precatorius L. Cassia siamea Lam. Locality : Khatu, 5084 Locality : Jaipur Road, 5126 Aeschynomene indica L. Cassia tora L. Locality : Harsh Gaon, 5004 Locality : Kailash, 5111 Alhagi maurorum Medic. Hardwickia binata Roxb. Locality : Jhunjhnu Road, 5142 Locality : Dhabai Ki Dhani, 5022 Alysicarpus longifolius (Rottl. Ex Spreng.) Parkinsonia aculeta L. Locality : Laxmangarh, 5269 Locality : Raghunathgarh Road, 5190 Alysicarpus monilifer (L.) DC. Tamarindus indica L. Locality