Monographs Details: Grammitis anfractuosa (Kunze & Klotzsch) Proctor
Authority: Proctor, George R. 1989. Ferns of Puerto Rico and the Virgin Islands. Mem. New York Bot. Gard. 53: 1-389.
Description:Species Description - Rhizome erect, very small (1-1.2 mm diam.), at apex bearing a tuft of blackish-clathrate, iridescent, lanceolate scales 0.5-1.3 mm long, these with denticulate-ciliate margins; stolons blackish, wide-creeping, ca. 0.2 mm thick. Fronds few (often only one or two), erect, mostly 4-8 cm long; stipes short, usually 0.5-1.5 cm long, dark brown, marginate, bearing rather many spreading reddish or fulvous hairs 0.5-0.8 mm long. Blades linear or very narrowly oblanceolate, 5-8 mm broad above the middle, deeply pinnatisect, slightly narrowed to an obtuse or acutish apex, narrowed and somewhat decurrent at base; rhachis on both sides and outer margins of segments with scattered short reddish setae; segments mostly 15-25 pairs, altemate, deltate or deltate-oblong, 1.5-2 mm broad at base, obtuse to acute at apex, broadly adnate at base, the margins entire; costae and veins immersed, obscure, the tips ending in distinct hydathodes well short of the margins; tissue firm, opaque. Sori mostly two or three per segment, borne at or near vein tips, becoming subconfluent with age, the glabrous sporangia mingled with numerous long reddish setae.


Basionym. Polypodium anfractuosum Kunze ex Klotzsch, Linnaea 20: 375. 1847.

Type. Moritz 330, from Merida, Venezuela (B, isotype US).

Syn. Polypodium saxicola Baker, J. Bot. 15: 264. 1877, not Sw., 1817. (Type. Jenman 84, in 1877, from Jamaica, K.)

Polypodium induens Maxon, Bull. Torrey Bot. Club 32: 75. 1905. (Based on P. saxicola Baker, not Swartz.)

Ctenopteris anfractuosa (Kunze ex Klotzsch) Copeland, Philipp. J. Sci. 84: 431. 1955.

Distribution:Guadeloupe South America| Mexico North America| Central America| Peru South America| Ecuador South America| Colombia South America| Venezuela South America| Brazil South America| Guyana South America|