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 food resources and so will feed on a mixture of these to maximize their energy intake per unit time. As a result of this apparent contradiction, many hypotheses have been proposed to explain flower constancy in insects to determine the adaptability of flower constancy. One of the most popular explanations is that insects that are flower constant have limited memory space and can only focus on one flower type at a time. Insects, as with other animals, have short-term memory (STM) or "working memory" where information is stored temporarily for a few second or minutes. Additionally, insects have long-term memory