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-
Portia labiata Philippines, have slightly different hunting tactics. In laboratory tests, Los Baños "P. labiata"s rely more on trial and error than Sagada "P. labiata"s in finding ways to vibrate the prey's web and thus lure or distract the prey. Around Los Baños the web-building "Scytodes pallida", which preys on jumping spiders, is very abundant, and spits a sticky gum on prey and potential threats. A "P. labiata" from Los Baños instinctively detours round the back of "S. pallida" while with plucking the web in a way that makes the prey believe the threat is in front of it. In areas where