Adventitious flower clusters form along the midrib of the cotyledon. The other group of flowering plants were called monocotyledons or monocots, typically having one cotyledon. The embryo consists of a single cotyledon, usually with two vascular bundles. Species with one cotyledon are called monocotyledonous ("monocots"). Chorionic arteries, in turn, branch into cotyledon arteries. The oil is localised in the small lipid droplets in the cotyledon cells. By weight, they are 60% cotyledon, 32% coat and 8% embryonic root and shoot. The auricle at the base of the cotyledon leaf is pointed and measures long. No photosynthesis takes place within the cotyledon. To be specific, "Cry2" is responsible for blue-light-mediated cotyledon and leaf expansion. Also the Ribbonwood can produce more than one shoot per seed (usually one per cotyledon). The mesocotyl is considered to be partly hypocotyl and partly cotyledon (see seed). The cotyledon of the nut is eaten boiled or roasted. The Latin "cotyledon" ("small cup") refers to the shape of the leaves. Ara h 1 is a vicilin, located in the protein fraction of the peanut cotyledon.