Spider are apparently absent. In some species, the exocuticle of the legs and prosoma is modified by a tanning process, resulting in brown coloration. Bilins are found, for example, in "Micrommata virescens", resulting in its green color. Guanine is responsible for the white markings of the European garden spider "Araneus diadematus". It is in many species accumulated in specialized cells called guanocytes. In genera such as "Tetragnatha", "Leucauge", "Argyrodes" or "Theridiosoma", guanine creates their silvery appearance. While guanine is originally an end-product of protein metabolism, its excretion can be blocked in spiders, leading to an increase in its storage. Structural colors
Kyoto Botanical Garden Trees; European Style Garden; Flower Bed; Hydrangea Garden; Japanese Iris Garden; Japanese Native Plants; Lotus Pond; Nakaragi-no-mori Pond (trees native to the Yamashiro Basin); Peony Garden; Perennial and Useful Plants Garden; Sunken Garden; and the Uma Grove. The garden also contains a very substantial conservatory complex (4,694 m²) containing about 25,000 specimens representing 4,500 species. It is a set of rooms shaped to resemble the nearby Kinkaku-ji Temple and Kyoto's northern mountains, built of glass with iron frames, and opened in 1992. It currently contains the following areas: Ananas Room; Aquatic and Carnivorous Plants; Bromeliads Room; Desert and Savanna Plants