Cattleya walkeriana walkeriana" has been twice determined as 2"n" = 40; the diploid chromosome number of the variety "C. walkeriana" var. "princeps" has been determined as 2"n" = 80. Cattleya walkeriana Cattleya walkeriana (Walker's cattleya) is a species of orchid. It differs from most species of "Cattleya" by having inflorescences which arise from the rhizome instead of from the apex of the pseudobulb. In its native habitat (Brazilian Central Plateau) it grows as either an epiphyte or a lithophyte, sometimes in full sun. Pseudobulbs are relatively short, bulbous or fusiform, with one or two ovate leaves at the apex. Inflorescence is one-
Flower constancy flowers and could essentially waste foraging time probing other flowers that could possibly contain less nectar. In social foragers, flower constancy could benefit the colony in that foragers avoid competition with other foragers by specializing on a specific flower type or species. In this case, individual insects, for example bees, become flower constant to avoid competition and thus increase foraging efficiency. Flower constancy Flower constancy or pollinator constancy is defined as the tendency of individual pollinators to exclusively visit certain flower species or morphs within a species, bypassing other available flower species that could potentially be more rewarding (i.e. contain