Geographic variation and plasticity of leaf shape and size in Begonia dregei and B. homonyma (Begoniaceae)

Botanical Journal of the Linnean Society

Volumn 132, Issue 1, 2000, Pages 79-95

  McLellan, Tracy ^a,b  

^a UNIVERSITY OF THE WITWATERSRAND   (South Africa)

^b IMPERIAL COLLEGE LONDON   (United Kingdom)

Author keywords

Conservation; Fourier analysis; Morphometrics; Rare plants; South Africa

Indexed keywords

ENVIRONMENTAL CONDITIONS; ENVIRONMENTAL EFFECT; LEAF MORPHOLOGY; PLASTICITY;

BEGONIA DREGEI; BEGONIA HOMONYMA; BEGONIACEAE;

EID: 0033960453     PISSN: 00244074     EISSN: None     Source Type: Journal    
DOI: 10.1006/bojl.1999.0292     Document Type: Article

References (20)

1. Acocks JPH. 1952. Veld types of South Africa, 3rd edition. Memoirs of the Botanical Survey of South Africa 57: 1-146.
2. Allsopp A. 1967. Heteroblastic development in vascular plants. Advances in Morphogenesis 6: 127-171.
3. Barabé D, Brouillet L, Daigle S. 1992. Organogénie de la feuille de Begonia radicans Vellozo et de B. scabrida A.DC. (Begoniaceae). Canadian Journal of Botany 70: 1107-1122.
4. Chazdon RL. 1988. Sunflecks and their importance to forest understorey plants. Advances in Ecological Research 18: 1-63.
5. de Wilde JJFE. 1985. Taxonomy of the (African) Begoniaceae, and introduction. Acta Botanica Neerlandica 34: 226-227.
6. Doorenbos J, Sosef MSM, de Wilde JJFE. 1998. The sections of Begonia, including descriptions, keys and species lists (Studies in Begoniaceae VI). Wageningen Agricultural University Papers 98-2: 1-266.
7. Givnish TJ. 1987. Comparative studies of leaf form: Assessing the relative roles of selective pressures and phylogenetic constraints. New Phytologist 106 (Suppl.): 131-160.
8. Hammond D. 1941. The expression of genes for leaf shape in Gossypium hirsutum L. and Gossypium arboreum L. I. The expression of genes for leaf shape in Gossypium hirsutum L. American Journal of Botany 28: 124-138.
9. Hilliard OM. 1976. Begoniaceae. In: Ross JH, ed. Flora of Southern Africa 22: 136-144.
10. Irmscher E. 1961. Monographische Revision de Begoniaceen Afrikas I. Sekt. Augustia und Rostrobegonia sowie enige neue Sippen aus anderen Sektionen. Botanische Jahrbucher Systematik 81: 106-188.
11. Jones CS. 1992. Comparative ontogeny of a wild cucurbit and its derived cultivar. Evolution 46: 1827-1847.
12. Jones CS. 1993. Heterochrony and heteroblastic leaf development in two subspecies of Cucurbita argyrosperma (Cucurbitaceae). American Journal of Botany 80: 787-795.
13. Kincaid DT, Schneider RB. 1983. Quantification of leaf shape with a microcomputer and Fourier transform. Canadian Journal of Botany 61: 2333-2342.
14. Matolweni LO, Balkwill K, McLellan T. In press. Genetic diversity and gene flow in the morphologically variable rare endemics Begonia dregei and Begonia homonyma (Begoniaceae). American Journal of Botany.
15. McClendon JH, McMillen GG. 1982. The control of leaf morphology and the tolerance of shade by woody plants. Botanical Gazette 143: 79-83.
16. McLellan T. 1990. Development of differences in leaf shape in Begonia dregei (Begoniaceae). American Journal of Botany 77: 323-337.
17. McLellan T. 1993. The roles of heterochrony and heteroblasty in the diversification of leaf shape in Begonia dregei (Begoniaceae). American Journal of Botany 80: 796-804.
18. McLellan T, Endler JA. 1998. The relative success of some methods for measuring and describing the shape of complex objects. Systematic Biology 47: 264-281.
19. Reitsma JM. 1983. Placentation in Begonias from the African continent. Studies in Begoniaceae I. Mededelingen Rijks Landbouwhoogeschool 83-9: 21-53.
20. Smith LB, Wasshausen DC, Golding J, Karegeannes CE. 1986. Begoniaceae. Smithsonian Contributions to Botany 60: 1-584.