Metzgar Jordan S
Massey Herbarium (VPI), Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24061, USA Virginia Polytechnic Institute and State University Blacksburg United States of America.
PhytoKeys. 2025 Aug 27;262:31-44. doi: 10.3897/phytokeys.262.165533. eCollection 2025.
Lygodium palmatum (Bernh.) Sw. subsp. puskariorum Metzgar, (Lygodiaceae) is described from the eastern USA. This taxon differs from Lygodium palmatum subsp. palmatum by its glabrous leaf undersides, absence of hairs along the fertile and sterile segment petioles, and its geographic range. It is the less widely distributed of the two subspecies.
掌叶海金沙（Lygodium palmatum (Bernh.) Sw.）的亚种普斯卡里奥姆海金沙（Lygodium palmatum (Bernh.) Sw. subsp. puskariorum Metzgar），（海金沙科）来自美国东部。该分类群与掌叶海金沙亚种（Lygodium palmatum subsp. palmatum）的区别在于其叶片下表面无毛，在能育和不育裂片叶柄上没有毛，以及其地理分布范围。它是这两个亚种中分布较不广泛的。
