Monographs Details:
Authority:
Mickel, John T. & Beitel, Joseph M. 1988. Pteridophyte Flora of Oaxaca, Mexico. Mem. New York Bot. Gard. 46: 1-580.
Mickel, John T. & Beitel, Joseph M. 1988. Pteridophyte Flora of Oaxaca, Mexico. Mem. New York Bot. Gard. 46: 1-580.
Family:
Pteridaceae
Pteridaceae
Description:
Species Description - Rhizome scales 1-2 mm long, 0.5-0.8 mm wide, bicolorous, center black, heavily sclerified, margin wide, brown, fringed; fronds 0.8-2.5 m tall; stipe stramineous, glabrous; blade bipinnate-pinnatifid, slightly pedate, pinna axils smooth; ultimate segments 3-6 cm long, base cuneate, apex acute to acuminate, not lanceolate, toothed, the teeth slightly mucronate, sinuses symmetrical, upper surface glabrous, lower surface with scattered brown hairs along midribs 0.5 mm long; rachis awns absent or reduced to a minute bump; pinna awns 0.3-1.0 mm long; veins anastomosing with 3-5 areoles between costules, usually one row of areoles along costules, extending to base of sinus; indusium 0.5 mm wide, whitened, entire; sporangia mixed with 0.1-0.3 mm long paraphyses; spores reddish-brown.
Species Description - Rhizome scales 1-2 mm long, 0.5-0.8 mm wide, bicolorous, center black, heavily sclerified, margin wide, brown, fringed; fronds 0.8-2.5 m tall; stipe stramineous, glabrous; blade bipinnate-pinnatifid, slightly pedate, pinna axils smooth; ultimate segments 3-6 cm long, base cuneate, apex acute to acuminate, not lanceolate, toothed, the teeth slightly mucronate, sinuses symmetrical, upper surface glabrous, lower surface with scattered brown hairs along midribs 0.5 mm long; rachis awns absent or reduced to a minute bump; pinna awns 0.3-1.0 mm long; veins anastomosing with 3-5 areoles between costules, usually one row of areoles along costules, extending to base of sinus; indusium 0.5 mm wide, whitened, entire; sporangia mixed with 0.1-0.3 mm long paraphyses; spores reddish-brown.
Discussion:
Type. Puerto Rico. Ledru s.n. (P-Lam.!). Pteris kunzeana Agardh, Recens. spec. Pter. 62. 1839. Litobrochia kunzeana (Agardh) Fée, Mém. foug. 5: 135. 1852. Syntypes. French Guiana. Leprieur (G-Delessert); “ad Cayennam.” Richard (P); Peru. Matthews s.n. (K-frag. NY!), Poeppig [225] (K; isosyntype B-frag. NY!). Litobrochia grandis Fée, Mém. foug. 8: 75. 1857. Syntypes. Mexico. Barranca de San Francisco, Mirador, Schaffner 144 (P); Cuba. Morelet (P); Saint Dominique. de Tussac (P). Pteris protea Liebmann, Mexic. bregn. 228 (seors. 76). 1849. Syntypes. Mexico. Veracruz: Colipa, Liebmann [Pl. Mex. 2728, Fl. Mex. 758, 759], Pital to Río Nautla [Pl. Mex. 2729, Fl. Mex. 760], between Colipa and Misantla [Pl. Mex. 2730, Fl. Mex. 557] (all C!; isosyntypes BM, K). Pteris altissima is distinguished among the bi-or tripinnatifid awn-bearing taxa by the netted venation with 2-5 areoles between pinnule costae. A. R. Smith (1981) reported intermediates between this species and P. orizabae from Chiapas, although none have been found in Oaxaca.
Type. Puerto Rico. Ledru s.n. (P-Lam.!). Pteris kunzeana Agardh, Recens. spec. Pter. 62. 1839. Litobrochia kunzeana (Agardh) Fée, Mém. foug. 5: 135. 1852. Syntypes. French Guiana. Leprieur (G-Delessert); “ad Cayennam.” Richard (P); Peru. Matthews s.n. (K-frag. NY!), Poeppig [225] (K; isosyntype B-frag. NY!). Litobrochia grandis Fée, Mém. foug. 8: 75. 1857. Syntypes. Mexico. Barranca de San Francisco, Mirador, Schaffner 144 (P); Cuba. Morelet (P); Saint Dominique. de Tussac (P). Pteris protea Liebmann, Mexic. bregn. 228 (seors. 76). 1849. Syntypes. Mexico. Veracruz: Colipa, Liebmann [Pl. Mex. 2728, Fl. Mex. 758, 759], Pital to Río Nautla [Pl. Mex. 2729, Fl. Mex. 760], between Colipa and Misantla [Pl. Mex. 2730, Fl. Mex. 557] (all C!; isosyntypes BM, K). Pteris altissima is distinguished among the bi-or tripinnatifid awn-bearing taxa by the netted venation with 2-5 areoles between pinnule costae. A. R. Smith (1981) reported intermediates between this species and P. orizabae from Chiapas, although none have been found in Oaxaca.
Distribution:
Mexico North America| Brazil South America| French Guiana South America| Colombia South America| Trinidad and Tobago South America| West Indies| Panama Central America| Guatemala Central America|
Mexico North America| Brazil South America| French Guiana South America| Colombia South America| Trinidad and Tobago South America| West Indies| Panama Central America| Guatemala Central America|