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Podocarpaceae Endlicher

罗汉松科

Description from Flora of China

Trees or shrubs evergreen, dioecious or rarely monoecious. Leaves decussate, subopposite, or spirally arranged; blade scalelike, subulate, or linear to elliptic, stomatal lines abaxial or present on all surfaces. Pollen cones terminal, solitary or clustered in leaf axils, or borne in spikelike complexes; individual cones pedunculate or sessile; microsporophylls numerous, spirally arranged, with distinct adaxial and abaxial surfaces; microsporangia 2; pollen 2(or 3)-saccate in Chinese species, (rarely nonsaccate). Seed-bearing structures terminal or axillary, solitary, occasionally spikelike, comprising few to several spirally arranged bracts; all or only apical bracts fertile, smooth or warty; basal bracts sometimes fused and succulent (together with peduncle) to form a "receptacle," or obsolete; ovule (inverted) or inclined in Chinese species. Seed drupelike or nutlike, wholly or (in Dacrydium) partly enveloped in a sometimes colored and succulent epimatium derived from fertile ovulate scale. Cotyledons 2.

Eighteen genera and ca. 180 species: tropical, subtropical, and S temperate zones, mainly in S hemisphere but extending to montane tropical Africa, Central America, and Japan; four genera and 12 species (three endemic) in China.

Although strictly a flowering plant term, "receptacle" is used widely in Podocarpaceae literature, e.g., by Tomlinson (Int. J. Plant Sci. 153: 572-588. 1992). Spjut (Mem. New York Bot. Gard. 70: 21, 71-73. 1994) incorrectly used the term "epimatium" to denote the peduncle of Nageia and also the receptacle of Podocarpus and Dacrycarpus.

Cheng Wan-chün, Fu Li-kuo & Chao Chi-son. 1978. Podocarpaceae. In: Cheng Wan-chün & Fu Li-kuo, eds., Fl. Reipubl. Popularis Sin. 7: 398-422.

(Authors: Fu Liguo (傅立国 Fu Li-kuo) , Li Yong (李勇) ; Robert R. Mill)

经济区 Economic Plants Area, 药用植物园 Medicinal Plants Area, 裸子植物区 Gymnosperm Area, 木本花卉区 Woody Accrescent Area, 濒危园 Endangered Plants Garden, 标本园 Specimens Garden, 引种苗圃 Introducing Plants Nursery, 蒲岗保护区 Pu Gang Reserve

Lower Taxa


 

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