The plants collected and reported from different tribal and rural areas of Rajasthan. Species namely Azadirachta indica, Tinospora cordifolia, Phyllanthes emblica are used in diabeties. Boerhaavia diffusa, is generally used in liver disorders. Euphorbia hirta is often used for longer period against asthmatic problems for permanent recovery. Phyllanthus emblica are given to cure jaundice generally with buttermilk. The use of the plant parts as a crude drugs by various communities local people and vaidya’s in Rajasthan for various ailments no doubt indicates that the plant must have medicinal properties in it. Therefore, the plant requires a thorough screening of it's bioactive properties for the reported efficacies.

Collection of important medicinal plants from different regions of Rajasthan.

Introduction–

Rajasthan has a large population of about 5, 64, 73, 122 crore. Around 80 percent live in villages which utilizes local medicine.

The people of Rajasthan can be broadly divided into ; those living into extreme wheather condition as in Western Rajasthan and others in milder climate.

Rajasthan has rich biodiversity consisting of a large number of plants, some of which are used for their medicinal value. Although flora of Rajasthan has been compiled by Bhandari (1978) and Sharma (1976) but detailed information about their medicinal properties are lacking.

The following crude drugs are sold in market of Jaipur and their photographs are enclosed. (a) Vajradanti : Barleria prionitis / Indigofera trita (b) Brahmi : Bacopa monniri / Centella asiatica (c) Sikkakai-Acacia consinna (d) Ashwagandha – Withania somnifera CHAPTER-3 Morphological studies of some important medicinal plants (1) Morphology of Aloe vera:

As stress is linked to many diseases, research on an effective antistress agent (adaptogen) from plants has gained importance. We report the investigations on the adaptogenic property of a standardized extract of Bacopa monniera against acute (AS) and chronic stress (CS) models in rats.It is concluded that the standardized extract of B. monniera possesses a potent adaptogenic activity.

Table 1 : Inventory of local knowledge regarding medicinal plants of Churu district in the <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />Thar desert.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />