ISSN:
1615-6110
Keywords:
Angiosperms
;
Orchidaceae
;
Neottioideae
;
Thelymitreae
;
Calochilus
;
Epiblema
;
Thelymitra
;
Pollination
;
floral mimicry
;
deception
;
evolution of orchids
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The Australian orchid tribeThelymitreae, composed ofCalochilus, Epiblema, andThelymitra, is unique in theOrchidaceae because of the presence of a mitra or staminodal complex. Evidence from floral structure suggests thatEpiblema andThelymitra are sister genera and thatCalochilus is derived from aThelymitra ancestor. A “Gene Pool Vortex” model and a hypothetical phylogeny illustrate that introgressive hybridization, allopatry, and long distance dispersal have played a major role in the evolution of the tribe. Pollination and hybridization in the tribe are discussed with major emphasis on floral mimicry.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00937424