松叶蕨Psilotum nudum (L.) Beauv.
松叶蕨Psilotum nudum (L.) Beauv.
松叶蕨（中国高等植物图鉴）图版73：3-4
Psilotum nudum (L.) Beauv. Prod. Aetheog. 112. 1805: Ic. Corm. Sin. 1: 25. 1972; Fl. Tsinling. 2: 13, f. 1. 1974; De Vol in H. L. Li, Fl. Taiwan 1: 25, Pl. 1. 1975; Fl. Jiangsu 1: 10. 1977: Tagawa et K. Iwats., Fl. Thailand 3 (1): 5. 1979: Nakaike, New Fl. Jap. Pterid. 1. 1982. ——Lycopodium nudum L., Sp. Pl. 1100. 1753.
小型蕨类，附生树干上或岩缝中。根茎横行，圆柱形，褐色，仅具假根，二叉分枝。高15-51厘米。地上茎直立，无毛或鳞片，绿色，下部不分枝，上部多回二叉分枝；枝三棱形，绿色，密生白色气孔。叶为小型叶，散生，二型；不育叶鳞片状三角形，无脉，长2-3毫米，宽1.5-2.5毫米，先端尖，草质；孢子叶二叉形，长2-3毫米，宽约2.5毫米。孢子囊单生在孢子叶腋，球形，2瓣纵裂，常3个融合为三角形的聚囊，直径约4毫米，黄褐色。孢子肾形，极面观矩圆形，赤道面观肾形。
产我国西南至东南。广布于热带和亚热带。
《Flora of China》 Vol. 2-3 (2013)
Psilotum nudum (Linnaeus) P. Beauvois Prodr. Aethéogam. 112. 1805.
松叶蕨 song ye jue
Lycopodium nudum Linnaeus, Sp. Pl. 2: 1100. 1753.
Rhizomes creeping, terete, brown, with dense rhizoids. Aerial stems erect to somewhat pendulous, green, with dense white stomata, 15-50 cm, 0.8-1.5 mm wide, glabrous, unbranched proximally, distally repeatedly dichotomously branched, 3-angled or -ridged. Trophophylls subulate-triangular, 1-2 mm, herbaceous; sporophylls deeply bifid, lobes narrowly subulate, 2-3 mm. Sporangia yellow to yellowish brown, obtriangular-globose, 3-4 mm in diam., (2 or)3-lobed. 2n = 104, 208, ca. 312.
Epiphytic on trees or rock crevices; near sea level to 1000 m. Anhui, Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangsu, Jiangxi, Shaanxi, Sichuan, Taiwan, Yunnan, Zhejiang [widespread in tropics and subtropics of Old and New Worlds, extending northward to Korea and Japan].
别名：whisk fern;龙须草;铁刷子;石龙须;刷把分筋;松叶兰;刷竹还阳;铁扫把;铁刷把;铁扫帚;石松;刷把还阳;铁扫杷;羊须;石刷把;
科名：松叶蕨科 Psilotaceae
属名：松叶蕨属 Psilotum
松叶蕨（中国高等植物图鉴）图版73：3-4
Psilotum nudum (L.) Beauv. Prod. Aetheog. 112. 1805: Ic. Corm. Sin. 1: 25. 1972; Fl. Tsinling. 2: 13, f. 1. 1974; De Vol in H. L. Li, Fl. Taiwan 1: 25, Pl. 1. 1975; Fl. Jiangsu 1: 10. 1977: Tagawa et K. Iwats., Fl. Thailand 3 (1): 5. 1979: Nakaike, New Fl. Jap. Pterid. 1. 1982. ——Lycopodium nudum L., Sp. Pl. 1100. 1753.
小型蕨类，附生树干上或岩缝中。根茎横行，圆柱形，褐色，仅具假根，二叉分枝。高15-51厘米。地上茎直立，无毛或鳞片，绿色，下部不分枝，上部多回二叉分枝；枝三棱形，绿色，密生白色气孔。叶为小型叶，散生，二型；不育叶鳞片状三角形，无脉，长2-3毫米，宽1.5-2.5毫米，先端尖，草质；孢子叶二叉形，长2-3毫米，宽约2.5毫米。孢子囊单生在孢子叶腋，球形，2瓣纵裂，常3个融合为三角形的聚囊，直径约4毫米，黄褐色。孢子肾形，极面观矩圆形，赤道面观肾形。
产我国西南至东南。广布于热带和亚热带。
《Flora of China》 Vol. 2-3 (2013)
Psilotum nudum (Linnaeus) P. Beauvois Prodr. Aethéogam. 112. 1805.
松叶蕨 song ye jue
Lycopodium nudum Linnaeus, Sp. Pl. 2: 1100. 1753.
Rhizomes creeping, terete, brown, with dense rhizoids. Aerial stems erect to somewhat pendulous, green, with dense white stomata, 15-50 cm, 0.8-1.5 mm wide, glabrous, unbranched proximally, distally repeatedly dichotomously branched, 3-angled or -ridged. Trophophylls subulate-triangular, 1-2 mm, herbaceous; sporophylls deeply bifid, lobes narrowly subulate, 2-3 mm. Sporangia yellow to yellowish brown, obtriangular-globose, 3-4 mm in diam., (2 or)3-lobed. 2n = 104, 208, ca. 312.
Epiphytic on trees or rock crevices; near sea level to 1000 m. Anhui, Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangsu, Jiangxi, Shaanxi, Sichuan, Taiwan, Yunnan, Zhejiang [widespread in tropics and subtropics of Old and New Worlds, extending northward to Korea and Japan].