Rare, Endangered and Threatened (RET) Species of Indian Himalayan Region (IHR) Sr. Botanical Name Habitat and Ecology Conservation Conservation Measures Biology and Potential Value Cultivation Reference Source No. Measures Taken Proposed Acer caesium Wall. The species is the largest Decades back it was a (i) To introduce the species in This is the largest Acer in Western Not Known 1. Anon. (1948). Acer species. In: Wealth of India 1. Red Data ex Brandis maple in the Western common tree in the protected reserve forests of Himalaya and is termed as the p. 21-22. C.S.I.R., New Delhi. 2. Anon. (1952). Book of Indian Himalayas. It grows at 2130- Western Hima- layas Western Himalayan States, (ii) Indian Maple (10), often attaining a Notes on the utilization and silviculture of the timbers Plants Vol. 1, 3050 m altitude in its usually found in open to maintain its germ-plasm by height of 20-25 m and a girth of used in wood based industries of India. Ind. For. 78: 1987. M.P. distribution range. It is grassy places and in keeping its seeds in seed banks about 3.6-3.9 m (1), twigs reddish 274-288, 348-370. 3. Dent, T .A. (1948). Seed storage Nayar & characteristic of the moist moist patches of broad- and replacing them by fresh blue, giving a handsome and with particular reference to the storage of seeds of A.R.K. Sastry temperate deciduous forest leaved forests (9). collection every year as seeds distinctive look in forest landscape. Indian forest plants. Ind. For. Rec. (N.S.) Silviculture subtype of Lower Western Only recent surveys (4, of A. caesium have poor The wood is strong, can take well 7 (1); Govt. of India, Delhi. 4. Hajra, P.K. (1983a). Himalayan temperate forests 5) denote that the viability (3). seasoning and is suitable for Plants of North Western Himalayas with restricted occurring in association with existence of the furniture, turnery frames, boarding, distribution- a census. In: Jain, S. K. & Rao, R. R. temperate deciduous tree species in the western bowls and other domestic (ed). An assessment of threatened plants of India. genera like Corylus, Himalayas is appliances (1). Botanical Survey of India, Howrah. p. 1-12. 5. Aesculus, Prunus, Ulmus, threatened. No Hajra, P.K. (1983b). Western Himalayas. In: Jain, S. Carpinus and Betula and the measure to eliminate K. & Sastry, A. R. K. (ed). Materials for a catalogue lauraceous genera like threat to its existence is of threatened plants of India. Botanical Survey of 1 Litsea, Lindera and presumably yet taken. India, Howrah. p.49-61. 6. Karnik, M. G. & Misra, A. Machilus. In Upper wet K. (1964). Maple wood (Acer caesium) for tooth-pick Himalayan temperate forests industry. Ind. For. 90:310-311. 7. Murray, E. (1975). the species is in Quercus- Aceraceae. In: Nasir,E. & Ali, S. I. (ed.) Flora of West Abies and Quercus-Acer Pakistan No. 92. p. 1-7 with 5 pl. 8. Nayar, M. P. & association with dominating Anukul Datta (1982). Aceraceae. Fasc. Fl. India 9: 1- Oaks like Quercus incana, 22, with plates. Botanical Survey of India, Howrah. 9. Q. semicarpifolia, Q. dilatata Parker, R. N. (1918). A forest flora for the Punjab and Abies pindrow. with Hazara and Delhi. p. 102-105. 10. Watt, G. (1889). Dictionary of economic products of India. 1: 67-72 (reprinted ed. 1972) Dehradun. Acer hookeri Miquel Occurs in much lower None (a) To survey extensively its The variety differs from the species Not known. 1. Anon. (1907). Forests, Gazetteer of the Darjeeling Red Data var. majus Pax elevation than the species. type locality and adjacent . in respect of leaves which are District. Bel. Government of Bengal, Calcutta. p. 98. Book of Indian The forests of the area are places and to examine as far as thicker (leathery), larger and with 2. Anon. (1970). Tenth working plan for the Plants Vol. 1, typified as East Himalayan possible the population areas margin imperfectly biserrate and Darjeeling Forest Di} 1967-68-1976-77. vol. 1 (part 1987. M.P. subtropical wet Hill forests of A. hookeri, (b) if redisco- serrature less cuspidate; samara 1 & Appendices i-xiv) and vol. 2 (part 2 Directorate Nayar & associated with Castanopsis vered, to declare its wings straight. 'of Forests, Government of West Bengal. Calcutta. 3. A.R.K. Sastry .. tribularis, Engelhardtia place/places of occurrence as Nayar, M. P. & Anukul Datta (1982). Aceraceae. spicata, Betula protected reserve/reserves, (c) Fasc. Fl. In' Survey of India, Howrah. 4. Pax, F. cylindrostachys, Schima to ban collection of the plants, (1886). Monographie der Gattung Acer. In: Engler, A. wallichiana, Alnus if extant, for botanical Bol (see p. 216). 2 nepalensis, ~ Cedrela and interests/scientific studies, (d) Eurya spp. The taxon is also to atte~pt for regeneration and closely associated with Acer introduction to other areas thomsoni (2). having similar habitat and ecological conditions, (e) to conserve its germ-plasm (seed) in modern seed banks Acer oblongum In lower Western Himalayan None. The variety is (a) To survey Mussoorie and Unlike var. oblongum and var. Not known. A. 1. Banerji, M. L. (1983). Phytologia 9(5): 265-266. 2. Red Data Wall. ex DC. var. temperate forests dominated recognized (l) recently vicinity in; the outermost range microcarpum of the species, this oblongum is Dakshini, M.B. (1984). Role of forest trees in Book of Indian membranaceum by Quercus incana (Ban oak and remained unknown of the Himalayas and adjacent variety has very thin papery leaves regarded as an landscaping. Indian Forest Bulletin 277 (N.S.) Plants Vol. 1, Banerji forests) from Jharipanito the to its early collectors. Siwalik ranges to examine as which are dull red or reddish- ornamental Botany. Control1er of Publications, Government of 1987. M.P. upper ridges of Mussoorie far as possible all the A. brown on both the surfaces. So plant and is India, Delhi. p. 1-15. 3. Gupta, R. K. (1967). Nayar & hills (alt. 1500-1800 m) in oblongum stands of the unlike the trees of var. oblongum cultivated in Seasonal flowers of the Indian summer resorts: A.R.K. Sastry association with tree species area/areas, (b) if rediscovered, in which foliage assume red colour gardens (5). Mussoorie Hills. Navayug Traders, New Delhi. 4. like Rhododendron to declare its localities as in spring time (2) the foliage of the Efforts should Nayar, M.P. & Anuku1 Datta (1982). Aceraceae, arboreum, Machilus odora- protected re- serve/reserve$, trees of this variety wear dazzling be made for Fasc. Fl. India 9:1-22. Botanical Survey of India, tissima, M. duthiei, Phoebe (c) to take up stringent red/reddish brown colour introducing Howrah. 5. Parker, R.N. (1918). A forest flora for the lanceolata, Cornus measures for its in situ throughout the year giving it a this variety Punjab with Hazara and Delhi. p. 102-105. 6. microphylla, Aesculus indica conservation as the "local distinctive appearance. along with var. Raizada, M.B. (1959). Mussoorie and its plants. Ind. along with Acers like A. people use the timber of A. oblongum i n For. 85: 668-690. 7. Raizada, M.B. & Saxena, H. O. laevigatum, A. caesium, A. oblongum for making various gardens. (1978). Flora of Mussoorie. 1. Bishen Singh and cappadocicum and A. domestic utensils and Mahendra Pal SIngh, Dehra Dun. 3 oblongum var. oblongum; agricultural equipments which conifers are much less is a potential threat factor, (d) common here, only Pinus to attempt for its regeneration roxburghii is abundant. Most and introduction in habitats of the trees above 1500 m are with identical ecological broad-leaved as 8 months of conditions, (e) to preserve its the year are comparatively dry seeds either collected from (3, 6, 7). living plant in the wild, or if non-extant, from all possible private and institutional collections. Acer oblongum In subtropical pine forests None. Since the (a) To survey extensively The variety is taxonomically Not known. 1. Anon. (1908). Mishmi Hills. The Imperial Red Data Wall. ex DC. var. dominated by Pinus insularis collection of Griffith, Mishmee hill area and vicinity distinct from the species in respect Gazetteer of India, vol. 17. (New Edition) Clarendon Book of Indian microcarpum Hiern along with the association of there is no report of its to locate the species, (b) if of leaf size, which are much Press, Oxford. 2. Champion H. G. & Seth, S. K. Plants Vol. 1, forest elements mentioned in further collection. The rediscovered in the wild, to smaller than those of the species. (1968). A revised survey of the forest types of India. 1987. M.P. the report on Acer sikkimense area in the remotest declare the area as a protected Manager of publications, Government of India, Delhi. Nayar & var. serrulatum (2, 4). northeastern part of the reserve by the State 3. Hiern, W. P. (187~). Acer in Sapindaceae. In: A.R.K. Sastry country requires Government, (c) to check its Hooker, J. D., Fl. Brit. India. 3:693. 4. Joseph, J. & further extensive further depletion, to ensure Chauhan, A.S. (1983), Namdapha Wild Life 4 exploration in the that no collection of the taxon Sanctuary, Tirap, Arunachal Pradesh. In: Jain, S.K. Arunachal Pradesh is made from the wild, (d) to and Sastry, A.R.K. (compiled). Botany of some tiger region. try for its introduction in other habitats in India. Botanical Survey of India, Howrah. areas having similar habitat r 5. Nayar, M. P. & Anukul Datta (1982). Aceraceae. and ecological environment, Fasc, Fl. India 9: 1-22. Botanical Survey of India, (e) to preserve and maintain its Howrah. 6. Pax, F. (1886). Monographie der Gattung germplasm in seed bank.