Leaf Epidermal And Pollen Morphological Studies Of Genus Jatropha L. (Euphorbiaceae) In Nigeria
Soyewo. L.T., Ayodele, A.E, Adeniji, K.S.
Keywords: Jatropha, morphology, abaxial, anticlinal and paralytic
Abstract : The predominated plant genus of Jatropha were studied using the epidermal cell morphology and pollen morphology to express more reliable power to its identification aside from the normal flower and other features key arrangement, they all had paralytic stomata type with absence of stomata at the abaxial with no traces of trichomes, J. multifida is having the highest stomata length of 27.5µm with highest stomata with 17.5µm while J. curcas, J. podagrica and J. gossypifolia varies between 15.0 µm in stomata length to 12.5 µm in stomata width. They also have straight to curve anticlinal cell walls. They all possess large grain with exine pattern all croton while only J. multifida has the smallest gemmae size of 2.50 µm and its polar axis and equatorial diameter carries lower parameters of 52.1 µm and 51.6 µm respectively while it may be more affected by environmental factor and that is why the results is good but calls for more genetic expression.
 O. Akobundu and C. W. Agyakwa. A Hand book of West African Weeds. 2008. 2nd Edn. International Institute of Tropical Agriculture, Ibadan, Nigeria.
 P. Adeonipekun and O. E. Ige. The refugia forest phenomenon: Implications on the palaepalynology of Neogene Niger/Cross River Delta. 2007. Nig. Sci. Focus, 12: 17-21.
 E. Ayodele and J. D. Olowokudejo. The family polygonaceae in West Africa: Taxonomic significance of leaf epidermal 2006. South African Journal of Botany. 72: 442 – 489.
 H. O. Edeoga, H. N. Ugbo and P. I. Osawe.
 Palymorphology of species of Commelina L. and Senna Tourn. Ex. Mill from Nigeria. 1999. New Bot., 25: 1-10.
 H. O. Edeoga and I. C. Ikem. Structural morphology of the pollen grains in three Nigerian Species of Boerhavia L. 2002. New Bot., 29: 89-95.
 P. K. Holmgren, N. H. Holmgren & L. C. Barnett (eds.) Index Herbariorum. 1990. Part I: The Herbaria of the World. 8. Edition. New York. x, 693 pp.
 J. Hutchinson and J. M. Dalziel. Floral of West Tropial Africa Vol.1 Part 1. 1963. Crown Agent for Overseas Governments and Administrations. London Pp. 828
 O. E. Ige. A late Tertiary pollen record from Niger Delta, Nigeria.2009. Int. J. Botany, 5: 203-215.
 M.M. Iwu. Handbook of African Medicinal Plant. 1993. CRC Press, Oxford Pp. 194
 M. M. Iwu, A. R. Duncan and C.O. Okunji. New Antimicrobials of plant origin. In: Janick J, editor. Prospective on new crops and new uses. 1974. Alexandria, V.A.: ASHS press; 1999. pp. 457–462.
 L. Kakkar, and G. S. Paliwal. Studies of the leaf anatomy of Euphorbia. V. Epidermis 1974. Proc. Indian Acad. Sci . (B) 40: 55 – 67.
 R.W.J. Keay. Nigeria Trees Revised 1989. Eds Clarendon Press, Oxford University Press, Faraday House, Calcutta 13, 1979.
 F. N. Mbagwu, E. G.Chime and C.I.N. Unamba. Palynological studies on five species of Asteraceae. 2008. J. Plant Sci., 3: 126-129.
 F.N. Mbagwu and H.O. Edeoga. Palynological studies on some Nigerian species of Vigna savi. 2006. Journal of Biological Sciences 2006; 6(6):1122 – 5.
 C. R. Metcalfe and L. Chalk. Anatomy of the Dicotyledons (2nd ed.) 1979. Vol. Oxford Univ. Press, Oxford, Pp. 62-65.
 J. D. Olowokudejo. Comparative Epidermal Morphology of West African species of Jatropha L. (Euphorbiaceae)1993. Bot. Journal of Linnean Society Pp. 142.
 D. Philip. An Exploration of the Potential of Producing Biofuels and the Prospective Influence of Bio-fuels Production on Poverty Alleviation among Small-Scale Farmers in Tanzania. 2007
 C. A. Stace Cuticular studies as an aid to plant taxonomy. Bulletin of British Museum (Natural History)1965. Botany 4: 3-78
 M. O. Soladoye Leaf Epidermal studies in the African Baphia LODD, and related general Analysis of genus Acalypha Linn. (Euphorbiaceae) 1982. J. Applied Sci. 8 (17):3044 – 3049.
 M. A. Sowunmi Pollen grains of Nigeria plants 1. Woody species. Grana, 13: 145-1973. 186.
 H.P. Winkinson. The Plant Surface (Mainly Leaf) in Metcalfe, C.R. and Chalk, L. (Edu.) Anatomy of the Dicotyledons 2nd Ed.1979. Vol., Pp. 40-53.