1 . tuber a fleshy, enlarged stem of a rhizome or stolon. it has buds and can grow new plants 2 . rhizome a plant structure with enlarged leaf bases and stored food surrounding a central bit of fleshy stem tissue 3 . bulb a stem which grows out periodically producing new stems and leaves on one side, and roots on the other 4 . vegetative propagation a short, solid, enlarged underground stem used for food storage and for asexual reproduction 5 . stolon a spore that develops by mitosis 6 . vascular plant has true conductive tissues within it. it usually has true roots, stems, and leaves 7 . corm refers to the appearance of buds or roots from tissue which is not bud or root tissue 8 . adventitious the act of propagating or establishing and growing new plants 9 . mitospore a stem at or just beneath the surface of the ground which can give rise to aerial stems or roots