to 
LITERATURE CITED 
. Lawrence , G.M., 1951, Taxonomy of Vascular Plants, The MacMillan 
Co., New York. 
Schultes, Richard E., 1947, **The Use of Formaldehyde in Plant Collect- 
ing’ Rhodora 49:54-60. 
Moore, H.E., Jr., 1950, °°A Substitute for Formaldehyde and Alcohol in 
Plant Collecting’? Rhodora 52:123-124. 
Hodge, W.H., 1947, °**The Use of Alcohol in Plant Collecting’ Rhodora 
49:207-210. 
. Bendz, G. and Santesson, J. (Eds.), 1974 Nobel 25, Chemistry in Botant- 
cal Classification, Academic Press, London. 
Harborne, J.B. in The Flavonoids, 1975, (J.B. Harborne, T.J. Mabry and 
H. Mabry Eds.) Chapman and Hall, London p. 1050. 
Williams, C.A., Harborne, J.B. and Clifford, H.T., 1973, “‘Negatively 
Charged Flavones and Tricin as Chemosystematic Markers in the 
Palmae’™> Phytochemistry 12:2414-2430. 
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