Summary
“Corner's rules” for plant form relate the degree of branching to branch diameter, and branch diameter to leaf or inflorescence size. We report the first interspecific test of these rules for inflorescence size and branch diameter. We derived a simple corollary of Corner's rules; since leaf size and inflorescence size are both correlated to branch thickness, they may be correlated to each other. This corollary holds for Leucadendron and Protea (Proteaceae), and in certain other taxa in the Asteraceae, Bruniaceae and Pinaceae which also have leaves and reproductive structures on the same shoot. For such taxa this implies that selection for aspects of floral display (inflorescence size, pollination type) may also be expressed at the level of leaf size and vice versa. This has implications for many aspects of botany and also points to the importance of the co-ordinating role of plant architecture for aspects of plant form.
References
Bond WJ, Midgley JJ (1988) Allometry and sexual differences in leaf size. Am. Nat 131:901–910
Bremer K (1976) The genus Relhania (Compositae). Opera Bot 40:1–85
Clutton-Brock TH, Harvey PH (1980) Primates, brains and ecology. J Zool Lond 190:309–323
Cody ML (1986) Structural niches in plant communities. In: Diamond JM, Case TJ (eds) Community Ecology. Harper and Row. New York, pp 381–405
Corner EJH (1949) The durian theory and the origin of the modern tree. Ann Bot 13:367–414
Givnish TJ (1987) Comparative studies of leaf form: assessing the relative roles of selective pressures and phylogenetic constraints. New Phytol 106 [Suppl]:131–160
Gould SJ (1966) Allometry and size in ontogeny and phylogeny. Biol Rev Cambridge Phil Soc 41:587–640
Halle F, Oldeman RAA, Tomlinson PB (1978) Tropical Trees and Forests: an Architectural Analysis. Springer, Berlin Heidelberg New York
Huxley JS (1932) Problems of relative growth. Macveigh, London
McCune B (1988) Ecological diversity in North American Pines. Am J Bot 75(3):353–368
Midgley JJ (1987) The derivation, utility and implications of a divergence index for the genus Leucadendron (Proteaceae). Bot J Linn Soc 95:137–152
Peters RH (1983) The ecological implications of body size. Cambridge Univ Press
Pillans NS (1947) A revision of the Bruniaceae. JS Afr Bot 35:327–339
Rourke JP (1980) The Proteas of Southern Africa. Purnell, Cape Town
Sinnott EW (1921) The relation between body size and organ size in plants Am Nat 55:385–403
Thompson D'A (1917) On growth and form. Cambridge Univ. Press, London
Western D (1979) Size, life history and ecology in mammals. Afr J Ecol 17:185–204
Western D, Ssemakulu J (1982) Life history patterns in birds and mammals and their evolutionary interpretation. Oecologia 54:281–290
White PS (1983a) Corner's rules in eastern deciduous trees: allometry and its implications for the adaptive architecture of trees. Bull Torrey Bot Club 110:203–212
White PS (1983b) Evidence that temperate east north American evergreen woody plants follow Corner's rules. New Phytol 95:139–145
Williams IJM (1972) A revision of the genus Leucadendron (Proteaceae). Contrib Bolus Herb 3:1–425
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Midgley, J., Bond, W. Leaf size and inflorescence size may be allometrically related traits. Oecologia 78, 427–429 (1989). https://doi.org/10.1007/BF00379120
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00379120