An Account of Monocotyledonous Plants from Dihang Dibang Biosphere Reserve, Arunachal Pradesh, India

Dihang Dibang Biosphere Reserve (DDBR), Arunachal Pradesh, established on 2^nd September, 1998 with a total area of 5111.5 Km² . Due to inaccessibility of the area, plant wealth are very poorly known. Twelve extensive plant surveys were conducted in remote corners of DDBR area and about 5000 monocot specimens studied. Different ecosystem types, vegetation pattern and affinity of the flora discussed. Based on the present study the area is represented by 30 families, 184 genera, 479 species and 11 varieties of monocotyledonous elements.