Astrolepis sinuata (Lag. ex Sw.) D.M. Benham & Windham
(Latin: sinuatus, curved or wavy, in reference to the wavy-margined pinnae)
Local names: wavy scaly cloak fern, wavy cloak fern, long cloak fern, jimmy fern, bulb lip fern
subsp. mexicana D.M. Benham
(of Mexico)
Local names: mexican scaly cloak fern
2n = 58 (Benham & Windham 1993). Rocky slopes and cliffs on various substrates; Brewster Co. (V.L. Cory 40288, TEX-LL, annotated D.M. Behnam), and Jeff Davis Co. (Lundell & Lundell 14253-A, 13123, TEX-LL, annotated D.M. Benham); known in TX only from the Chisos Mts., Brewster Co. and the Davis Mts., Jeff Davis Co. (Benham & Windham 1993), though several ambiguous specimens from the Sierra Diablo Mts. of Culberson Co. (e.g., Correll 13757, TEX-LL) and from Presidio Co. (e.g., C.L. York 48042, TEX-LL) are possibly this subspecies; NM and TX; also Mexico and Central America. Sporulating summer–fall. This sexual diploid is apparently quite rare in the U.S. Because of its rareness and limited distribution in the state, we consider this subspecies to be of conservation concern in TX.
subsp. sinuata
wavy scaly cloak fern
n = 2n = 87 (Benham & Windham 1993). Rocky slopes and cliffs on various substrates; mainly Trans-Pecos and Edwards Plateau but scattered to the s and e in Anderson (E.N. Plank s.n., fide Correll 1956), Austin (E.H. Boyd s.n., fide Correll 1956), Comal, McMullen, and Webb (TEXLL; Correll 1956) cos.; mostly sw U.S. (AZ, NM, and TX) but disjunct to GA (e.g., Meriwether Co.; Allison & Stevens 2001); also Mexico, West Indies, Central and South America. Sporulating summer–fall. [Acrostichum sinuatum Lag. ex Sw., Cheilanthes sinuate (Lag. ex Sw.) Domin, Notholaena sinuata (Lag. ex Sw.) Kaulf.] This subspecies is reported to be an apogamous triploid derived via autopolyploidy from the diploid subsp. Mexicana (Benham 1989; Benham & Windham 1993). Wavy scaly cloak fern is one of a number of ferns found primarily in the sw or w U.S. with isolated disjunct populations in the southern Appalachians (see discussion on page 31). Reports of the species from OK (e.g., USDA PLANTS 2011) are apparently based on nomenclatural confusion involving collections of Astrolepis integerrima (previously known as Notholaena sinuate var. integerrima) that is well known from three localities in OK (Smith 2010).: Back to List :