K. N. Reddy , Ch. Sudhakar Reddy , S. N. Jadhav

Abstract

Ethnobotanical studies were carried out during 1995-2001 in the Eastern Ghats region of Andhra Pradesh covering Chittoor, Cuddapah, East Godavari, Guntur, Khammam, Krishna, Kurnool, West Godavari & Visakhapatnam districts and the tribal populations of Chenchus, Erukalas, Koyas, Konda Reddis, Lambda's (Sugalis), Nukadoras, Valmikis and Yanadis. The studies brought to light the ethnic uses of 21 epiphytic and terrastrial orchids. They are Acampe praemorsa, Bulbophyllum neilgherrense, Cymbidium aloifolium, Dendrobium herbaceum, D. macrostachyum, Eulophia epidendria, Geodorum densiflorum, Habenaria fursifera, H. longicorniculata, H. plan-taginea, H. roxburghii, Luisia zeylanica, Malaxis acuminata, M. rheedii, Nervilia aragoana, N. plicata, Oberonia wightiana, Peristylus lawii, Pholidota imbricata, Yanda tesellata and V. testacea.

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Ch. Sudhakar Reddy , Manoranjan Bhanja , Vatsavaya S. Raju

Abstract

Jakaram Reserve is a 200 ha mixed dry deciduous forest with 306 species of Magnoliophyta representing 61 families of Magnoliopsida and seven families of Liliopsida. Of these, 66.4% are herbs, 11.4% are shrubs and 22.2% are trees. Among the 68 tree species, 13 are planted. While Tectona grandis dominated the land in the past, Anogeissus latifolia, Chloroxylon swietenia, Gardenia resinifera and Helicteres isora are the most prevalent trees at present. Diospyros chloroxylon is the dominant shrub followed by Maytenus emarginata, Ziziphus oenoplia, Grewia flavescens and G. hirsuta. The proportions of hemicryptophytes (5%) and cryptophytes (4%) indicate a tropical climate while the phanerophytes (26%), chamaepbytes (18%) and therophytes (47%) present a desert phytoclimate. The latter scenario is due to the prevailing arid climate, deforestation and excessive grazing pressure. The cattle are found to forage on as many as 117 species (38%) though 61 species (20%) of them are of good fodder value.

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