1. Baker, H.G. andBaker, I. 1983a. A brief historical review of the chemistry of floral nectar.In B. Bentley and T. S. Elias, eds., The Biology of Nectaries, Columbia Univ. Press, New York, pp. 126–152.
2. Baker, H.G. andBaker, I. 1983b. Floral nectar sugar constituents in relation to pollinator type.In C.E. Jones and R.J. Little, eds., Handbook of Experimental Pollination Biology, Van Nostrand Reinhold Co., New York, pp. 117–141.
3. Baskin, S.I. andBliss, C.A. 1969. Sugar content in extrafloral exudates from orchids. Phytochemistry8: 1139–1145.
4. Bolten, A.B., Feinsinger, P., Baker, H.G. andBaker, I. 1979. On the calculation of sugar concentration in flower nectar. Oecologia41: 301–304.
5. Burns-Balogh, P., Sziachetko, D.L. andDafni, A. 1987. Evolution, pollination and systematics of the tribe Neottieae (Orchidaceae). Pl. Syst. Evol.156: 91–115.