PL SC352 Study Guide - Quiz Guide: Stipule, Taproot, Notch Signaling Pathway

• School: University of Alberta
• Department: Plant Science
• Course: PL SC352
• Professor: Linda Hall

Document Summary

Stipule: leafy appendage found at base of leaves. Ocrea: sheath around stem formed from the stipules. Sagitate: arrowhead shaped leaf with basal lobes directed downwards ex) wild buckwheat. Hastate: arrowhead shaped leaf with basal lobes directed outward rather than downward ex) tartary buckwheat d/b. Mealy: consistency of powdery, dry and crumbly ex) lamb"s quarters. Achene: single seed that is attached to wall of the ovary at one point (polygonaceae family) does not open at maturity, but rather relies on predation. Monoecious: imperfect flowers, staminate and pistilate flowers are borne on same plants. Dioecious: imperfect flowers, staminate and pistilate flowers borne on diff plants. Toxin: oxalic acid makes them sour (irritate mouth and skin: can cause ca deficiency. Achene fruit triangular, dull brown, large (star shaped) Twining growth habit, small white-green apetalous flowers in terminal/axillary clusters. Achene fruit, triangular in cross section, black with brown hull. Green sepals, apetalous with pink or white margins in clusters.