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.
Family:Polypodiaceae
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.

Discussion:

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|