The one-layer-cell epidermis of onion scales is commonly used as a model experimental material in botany and molecular biology. The scales of an onion bulb are a modified type of leaf. Garden Auditorium, Vancouver.Ībstract The onion ( Allium cepa L.) is widely planted worldwide as a valuable vegetable crop. 0 Comments RECORD STORE DAY - RECORD STORE DAY 2. Salt-N-Pepa laid out their best music and bravest activism on Very Necessary, an album about love, agency, and take-no-shit femininity from the Queens rap trio.Missing.