| + | Ceratozamia (Greek, horned Zamia; referring to the horned scales of the cones, which distinguish this genus from Zamia). Cycadaceae. Handsome Mexican foliage plants, with cycas-Iike leaves, but less cultivated in American palm-houses than Cycas. |
| + | Trunk erect in age, crowned by a whorl of pinnate cycas-like lvs. which are petiolate and unarmed: fls. in cones borne from among the lvs., the cones often stalked: seeds rare and little known. —Six species. Best raised from young imported plants, but rarely prop. by seeds, or by offsets from the slow-growing trunk. Burn out the center of the plant with a hot iron, and a number of offsets will spring from the trunk and the crown; these may be used for prop. |