VAID, K. M. <I>Psilotum</I> Sw. : a New Record for Garhwal Himalayas. Indian Forester, [S. l.], v. 86, n. 2, p. 92–93, 1960. DOI: 10.36808/if/1960/v86i2/24408. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/24408. Acesso em: 5 dec. 2025.