Cycadaceae/Zamiaceae -- the cycad families (11/185; tropical and subtropical)
Plants seed plants, dioecious
Habit shrubs or palm-like trees
Leaves tightly alternate forming a dense terminal rosette; pinnately compound; most with circinate vernation
Pollen borne on strobili (look like cones) with many spirally arranged scales; 6-many pollen sacs per scale (microsporophylls), on underside (abaxial)
Ovules borne on strobili (look like cones) with many spirally arranged peltate scales or megasporophylls; in Cycadaceae: 2-8 ovules on margins of megasporophylls, in Zamiaceae: 2 ovules underneath peltate-shaped megasporophyll
Seeds large, drupelike