Scape (botany) Agave, which sensu stricto, is not a scape. Scapes are found on plants of many families, including Amaryllidaceae, Balsaminaceae, Liliaceae, Papaveraceae, Droseraceae, and Violaceae. Scape (botany) In botany, a scape is a long internode forming the basal part or the whole of a peduncle. Typically it takes the form of a long, leafless flowering stem rising directly from a bulb, rhizome, or similar subterranean or underwater structure. The scapes of scallions, chives, garlic chives, and garlic are used as vegetables. The word "scape" (Latin "scapus", from Greek σκᾶπος), as used in botany, is fairly vague and arbitrary; various sources provide
Calyx of Held embryonic calyx formation. One characteristic that distinguishes Eph proteins and their receptors from other signaling systems is their ability to transmit information bidirectionally. Forward and reverse signaling in VCN and MNTB cells is essential for the proper number and formation of VCN and ipsilateral MNTB projections in the calyx. Eph proteins also ensure that while axons pass through the ipsilateral MNTB, branching and final termination of these projections only occur in the contralateral MNTB, possibly because the proteins are only targeted towards specific regions on the axons. Overall, there are two ultrastructural changes that occur in the calyx of Held.