CONTENTS: Introduction, 1. Importance of Biodiversity, 2. Studies on Exotic Plants in India, 3. State of Maharashtra, 4. History of Botanical Explorations In Maharashtra, 5. Plan of Work and Methodology Adopted, 6. Purpose of The Work, 7. Statistical Analysis of Exotic Plants in Maharashtra, 8. Taxonomic Treatment, 9. Artificial Key to Families, 10. Group-I: (Thalamiflorae), 11. Group-II: (Disciflorae), 12. Group-III: (Calyciflorae), 13. Group-IV: (Gamopetalae), 14. Group-V: (Monochlamydeae), 15. Group-VI: (Monocotyledons), SYSTEMATIC ENUMERATION: 1. Ranunculaceae Juss, 2. Dilleniaceae Salisb, 3. Magnoliaceae Juss, 4. Annonaceae Juss, 5. Menispermaceae Juss, 6. Nymphaeaceae Salisb, 7. Papaveraceae Juss, 8. Fumariaceae A.L. Marquis, 9. Brassicaceae Burn, 10. Capparidaceae Juss, 11. Resedaceae S.F.Gray, 12. Violaceae Batsch, 13. Bixaceae Endl, 14. Flacourtiaceae DC, 15. Caryophyllaceae Juss, 16. Portulacaceae Juss, 17. Tamaricaceae S.F.Gray, 18. Elatinaceae Dumortier, 19. Clusiaceae Lindl, 20. Theaceae D.Don, 21. Malvaceae Juss, 22. Bombacaceae Kunth, 23. Sterculiaceae Bartl, 24. Tiliaceae Juss, 25. Linaceae, 26. Erythroxylaceae Kunth, 27. Malpighiaceae Juss, 28. Zygophyllaceae R.Br, 29. Geraniaceae Juss, 30. Averrhoaceae Hutch, 31. Oxalidaceae R.Br., 32. Tropaeolaceae A. DC, 33. Balsaminaceae Rich, 34. Rutaceae Juss, 35. Simaroubaceae DC, 36. Balanitaceae Endl, 37. Ochnaceae DC, 38. Burseraceae Kunth, 39. Meliaceae Juss, 40. Celastraceae R.Br, 41. Rhamnaceae Juss, 42. Vitaceae Juss, 43. Leeaceae (DC.) Dumort, 44. Sapindaceae Juss, 45. Anacardiaceae Lindl, 46. Moringaceae Dumort, 47. Papilionaceae Giseke, 48. Caesalpiniaceae R.Br, 49. Mimosaceae R.Br, 50. Rosaceae Juss, 51. Hydrangeaceae Dumort, 52. Crassulaceae DC, 53. Combretaceae R.Br, 54. Myrtaceae Juss, 55. Lecythidaceae Poir, 56. Barringtoniaceae Rudolphi, 57. Lythraceae J.St.Hill, 58. Punicaceae Horan, 59. Onagraceae Juss.Trapaceae Dumortier, 60. Turneraceae D,. 61. Pasifloraceae Juss, 62. Caricaceae Dumort, 63. Cucurbitaceae Juss, 64. Begoniaceae C.A. Agardh, 65. Cactaceae Juss, 66. Aizoaceae Rudolphi, 67. Molluginaceae Hutch, 68. Apiaceae Lindl, 69. Araliaceae Juss, 70. Caprifoliaceae Juss, 71. Rubiaceae Juss, 72. Asteraceae Dumort, 73. Goodeniaceae R.Br, 74. Campanulaceae Juss, 75. Plumbaginaceae Juss, 76. Primulaceae Vent, 77. Myrsinaceae R.Br, 78. Sapotaceae Juss, 79. Ebenaceae Gurke, 80. Oleaceae Hoffm. ex Link, 81. Apocynaceae Juss, 82. Asclepiadaceae R.Br, 83. Buddlejaceae Wilhem, 84. Gentianaceae Juss, 85. Polemoniaceae Juss, 86. Boraginaceae Juss, 87. Convolvulaceae Juss, 88. Cuscutaceae Dumort, 89. Solanaceae Juss, 90. Scrophulariaceae Juss, 91. Gesneriaceae Dumort, 92. Bignoniaceae Juss, 93. Pedaliaceae R.Br, 94. Martyniaceae Stapf, 95. Acanthaceae Juss, 96. Verbenaceae J.St. Hill, 97. Lamiaceae Lindl, 98. Plantaginaceae Juss, 99. Nyctaginaceae Juss, 100. Amaranthaceae Juss, 101. Chenopodiaceae Vent, 102. Basellaceae Moq.-Tand, 103. Phytolaccaceae R.Br, 104. Polygonaceae Juss, 105. Aristolochiaceae Juss, 106. Myristicaceae R.Br, 107. Lauraceae Juss, 108. Proteaceae Juss, 109. Piperaceae J.Agardh, 110. Loranthaceae Juss, 111. Euphorbiaceae Juss, 112. Ulmaceae Mirbel, 113. Urticaceae Juss, 114. Cannabaceae Endl, 115. Moraceae Link, 116. Casuarinaceae R.Br, 117. Ceratophyllaceae S.F.Gray, 118. Hydrocharitaceae Juss, 119. Orchidaceae Juss, 120. Zingiberaceae Lindl, 121. Marantaceae Peter, 122. Cannaceae Juss, 123. Heliconiaceae (Endl.) Nak, 124. Strelitziaceae Hutch, 125. Bromeliaceae Juss, 126. Iridaceae Juss, 127. Amaryllidaceae J.St.Hill, 128. Agavaceae Endl, 129. Dioscoreaceae R.Br, 130. Liliaceae Juss, 131. Pontederiaceae K.Kunth, 132. Cyclanthaceae Dumort, 133. Commelinaceae R.Br, 134. Juncaceae Juss, 135. Arecaceae Sch, 136. Pandanaceae R.Br, 137. Typhaceae Juss, 138. Araceae Juss, 139. Lemnaceae S.F.Gray, 140. Alismataceae Vent, 141. Potamogetonaceae Dumort, 142. Zannicheliaceae Dumort, 143. Najadaceae Juss, 144. Eriocaulaceae Desv, 145. Cyperaceae Juss, 146. Poaceae J.H, Reference.