有柄马尾杉
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2023-11-09 06:56
Phlegmariurus petiolatus (C. B. Clarke) H. S. Kung et L. B. Zhang in Acta Phyto-tax. Sin. 37 (1): 45. 1999. ——Lycopodium hamiltonii Sprengel var. petiolatum C. B.Clarke in Trans, Linn. Soc. II. Bot. 1: 593. 1880; Baker, Handb. Fern Allies 10. 1887; Mehra et Bir in Res. Bull. Panjab Univ. 15 (1-2): 101. 1964; B. Ollg. , IndexLycop. 48. 1989. —— L. petiolatum (C. B. Clarke) Baker, Handb. Fern Allies 9. 1887; Herter in Engl. Bot. Jahrb. 43: Beibl. 98: 36. 1909. ——L. petiolatum (C. B.Clarke) Christ in Bull. Acad. Geogr. Bot. 11: 271. 1902. ——L. petiolatum (C. B. Clarke) Herter, l. c.; B. 0llg. in Opera Bot. 92: 165. 1987. ——Urostachys hamiltonii (Sprengel) Herter ex Nessel var. petiolatus (C. B. Clarke) Herter ex Nessel, Baerlappge. 68. 1939. ——U. petiolatus (C. B. Clarke) Herter ex Nessel, l. c. 196. ——Huperziapetiolata (C. B. Clarke) Dixit in J. Bombay Nat. Hist. Soc. 77 (3): 541. 1981, et Cen-sus Ind. Pterid. 8. 1984, et Lycop. Ind. 50, f. 5A-B, 1988; B. Ollg., Index Lycop. 18. 1989. ——Ph. hamiltonii (Sprengel) Love et Love var. petiolatus (C. B. Clarke) Ching in Acta Bot. Yunnan. 4 (2): 126. 1982. ——H. austrosinica Ching, op. cit. 3(3): 298. 1981 (excl. type). ——Ph. taxifolius auct. non (Sw.) L. Love et D. Love: L. Love, D. L6ve et Pic. Ser. Cytol. Atlas Pterid. 3. 1977. ——L. hamiltonii auct. Non Sprengel: S. H. Fu, Ill. Imporant Chinese Pl., Pterid. 3. f. 2. 1957. ——Ph. fordiiauct. non (Baker) Ching: H. S. Kung, Fl. Sichuan. 6: 41, Pl. 9: 1. 1988.
中型附生蕨类。茎簇生,成熟枝下垂,2至多回二叉分枝,长20-75厘米,主茎直径约5毫米,枝连叶宽28-3.5厘米。叶螺旋状排列。营养叶平展或斜向上开展,椭圆状披针形,长1.2厘米,植株中部叶片宽小于2毫米,基部楔形,下延,有明显的柄,有光泽,先端渐尖,中脉明显,革质,全缘。孢子囊穗比不育部分略细瘦,非圆柱形,顶生。孢子叶椭圆状披针形,排列稀疏,长6-9毫米,宽约1毫米,基部楔形,先端尖,中脉明显,全缘。孢子囊生在孢子叶腋,肾形,2瓣开裂,黄色。
产福建、湖南、广东、广西、四川、重庆、云南。附生于海拔600-2500米的溪旁、路边、林下的树干或岩石上或土生。印度有分布。模式标本采自印度。
J. G. Baker(1887),H. Christ(1902),W. Herter(1909),H. Nessel(1939)及 R. D. Dixit(1981,1984,1988)等都将变种 Lycopodium hamiltonii Sprengel var. petiolatum C. B. Clarke 作为种来处理。我们同意这种观点,并将它组合到马尾杉属中。