Syntrichia ammonsiana (H. A. Crum & L. E. Anderson) Ochyra, Fragm. Florist. Geobot.

Jimenez, Soledad, 2024, Novedades para la flora de briófitos de la provincia de Chaco, norte de Argentina, Boletin de la Sociedad Argentina de Botanica 59 (4), pp. 465-480 : 475

22. Syntrichia ammonsiana (H. A. Crum & L. E. Anderson) Ochyra, Fragm. Florist. Geobot. 37: 212. 1992.

Syntrichia ammonsiana is a propaguliferous species recognized by its ligulate to spathulate leaves not constricted at the middle, mucronate apex, plane margins, unistratose lamina, and the presence of vegetative propagules as small brood leaves borne in clusters at the stem apex ( Magill, 1981; Gallego & Cano, 2007).

Distribution and habitat. This species was described based on samples collected in North America ( Crum & Anderson, 1979) and later recorded in South America and Africa ( Magill, 1981; Gallego et al., 2006). In Argentina, it has been registered by Gallego & Cano (2007) in the southern (Patagonia) and northwestern regions of the country (Tucumán). Its distribution range extends northeastern Argentina, in the Chaco Province.

Specimens examined. ARGENTINA. Prov. Chaco: Dpto. General Güemes, Parque Nacional El Impenetrable (25° 00´47.5´´ S, 60° 57´45.8´´ W), cortícola sobre madera en descomposición, abundante, sombrío y seco, 11-VI-2023, Jimenez et al. 777 ( CTES) .