%0 Journal Article
%T Notes on the floral biology and pollination syndrome of Echinopsis chiloensis (Colla) Friedrich & G.D.Rowley (Cactaceae) in a population of semiarid Chile
%A OSSA
%A CARMEN G
%A MEDEL
%A RODRIGO
%J Gayana. Bot¨¢nica
%D 2011
%I Scientific Electronic Library Online
%R 10.4067/S0717-66432011000200012
%X we report some aspects of the floral biology ofechinopsis chiloensis ssp. chiloensis in a population near to the northern limit of its distribution. anthesis is strictly diurnal and flowers remain open during 492 min on the average. echinopsis chiloensis is self-incompatible. flower longevity, nectar production along day, and floral visitors indicate that this population fits well to a diurnal insect pollination syndrome. these results contrast with a previous report indicating nocturnal anthesis and mixed mellitophylous-sphingophylous pollination syndrome in populations near to the southern limit of the distribution range. we suggest that the pollination syndrome of e. chiloensis is a labile rather than fixed condition that may depend on the abiotic characteristics and geographical location of the population under assessment.
%K flower longevity
%K nectar production
%K pollination syndrome
%K flower adaptation.
%U http://www.scielo.cl/scielo.php?script=sci_abstract&pid=S0717-66432011000200012&lng=en&nrm=iso&tlng=en