Zamiaceae
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Description: Brief description of the genus.
Zamiaceae (Sago-palm family) description The Cycad Pages offers the most comprehensive cycad treatment on the Web. A family of eight genera and about 100 species, subdivided as follows: Plants perennial, evergreen, dioecious. Stems subterranean with exposed apex or aboveground, fleshy, stout, cylindric, simple or irregularly branched. Roots with small secondary roots; coral-like roots developing at base of stem at or below soil surface. Leaves pinnately compound, spirally clustered at stem apex, leathery; leaflets entire, dentate or spinose, venation dichotomous or netted; resin canals absent. Cones axillary, appearing terminal, short-peduncled or sessile, disintegrating at maturity; sporophylls densely crowded, spirally arranged. Pollen cones soon shed, generally smaller and more numerous than seed cones; sporophylls bearing many crowded, small microsporangia (pollen sacs) adaxially; pollen spheric. Seed cones persisting a year or more, 1(2) per plant, nearly globose to ovoid, tapering sharply or blunt at apex; sporophylls peltate, thickened and laterally expanded distally, bearing 2(3) ovules. Seeds angular, inner coat hardened, outer coat fleshy, often brightly colored; cotyledons 2 (
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| Page title: | Zamiaceae (Sago-palm family) description |
| Keywords: | |
| Description: | Description of Zamiaceae (Sago-palm family). |
| IP-address: | 69.89.27.222 |
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| Date | Creation Date: 1999-07-05T23:38:04Z Expiry Date: 2014-07-05T23:38:04Z |