Odisha being the coastal state of Indian sub-continent records a rich medicinal plant diversity in general and orchids in particular. Since time immemorial, these important plant resources remains in a neglected state leading to an alarming situation in near future. Virgin forests of Odisha spreading in areas like Gandhmardan Hills, Niyamgiri Hills, Deomali Hills, Mahendragiri Hills and Similipal Biosphere Reserve hoards rich orchid diversity enduring luxuriant growth. Out of 137 species of Orchids recorded so far, Similipal area alone harbours about 94 orchid species possessing high aesthetic and medicinal value. Unfortunately, the medicinal importance of orchids of this region has drawn least attention from both the scientific fraternity as well as general populace compared to their role in horticulture field. Orchid species of Odisha like Acampe carinata (Griff.) Panigr., A. praemorsa (Roxb.) Blatt. & McCann, Geodorum recurvum (Roxb.) Alston, Habenaria marginata Coleb., Rhynchostylis retusa (L.) Bl. and Vanda testacea (Lindl.) Rchb.f. are used to cure rheumatism, arthritis, dysentery, asthma and snake bite etc. However, the medicinal potentialities of these orchids are not so well exploited though they possess immense curative values. Further, as the forests of Odisha are experiencing various anthropogenic as well as abiotic pressures, many of the orchid populations are fast shrinking leading to their mass depletion. Realizing this, the current communication highlights the importance of 26 medicinal orchids very often used by the tribal populace of Odisha to get relief from various ailments. Concurrently, some major conservational strategies have also been projected.
DIVERSITY, DISTRIBUTION AND ABUNDANCE OF LICHEN IN SIMILIPAL BIOSPHERE RESERVE, ODISHA
