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7. Guihaia J. Dransfield, S. K. Lee & F. N. Wei, Principes. 29: 7. 1985.
石山棕属 shi shan zong shu
Stems short or subterranean, clustered, sometimes creeping, forming small clumps. Leaves 6-14, palmate, forming an open crown; leaf sheaths open, with coarse, black or brown fibers, these either free and spinelike or remaining joined at their apices and then forming a distinct point; petioles with smooth, sharp margins; hastula present; blades ± silvery white abaxially, divided to 3/4 or more their length into many segments, reduplicate, rarely blade undivided; margins of leaves with minute sawlike teeth. Plants dioecious. Inflorescences branched to 4 orders, borne among leaves; bracts 2; flowers very small, arranged spirally along rachillae. Fruits bluish black, small, globose to almost ellipsoid, 1-seeded; endosperm homogeneous with an irregular intrusion of seed coat; germination remote, eophyll not known.
Two species: S China, N Vietnam; two species in China.
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1 |
Leaf sheath fibers stiff, erect, separating and becoming spinelike; leaf blades densely silvery white abaxially; stems to 0.5 m tall and to 5 cm in diam.. |
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1 G. argyrata |
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Leaf sheath fibers curved, remaining joined, not separating into stiff spines; leaf blades scarcely silvery white abaxially; stems to 2.5 m tall and to 8 cm in diam.. |
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2 G. grossifibrosa |
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Lower Taxa
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