Polypodium calirhiza S.A.Whitmore & A.R.Sm.
Descripción
A Polypodio californico et P. glycyrrhiza combinatione characte rum sequentium differt: rhizomatibus parum dulcibus et acerbis; frondibus demissis; paleis stipitum et rhachidum lanceolato-ovatis, 4-8(-12) cellulis in latitudine; laminis oblongo-ovatis, leviter glaucis abaxialiter; pinnis acutis vel obtusis ad apicem; venis irregularibus, perparce vel plerumque anastomosantibus usque ad 33(-56)%; soris ovalibus, (1.5-)2-4 mm diametro; sporis verrucatis vel tuberculatis, ut videtur normalibus; chromosomatum numero 2n=74 II.
Rhizome creeping, 5-10 mm diam., pale brown with an acrid plus slightly sweet taste, covered with acuminate, light brown scales; stipe green to greenish brown; abaxial surface of distal part of stipe and proximal part of rachis and costae sparsely covered with light brown, very narrowly acuminate, caducous scales with slightly erose margins; abaxial surface of the lamina with short, 2-3(-8)-celled, branched or unbranched, glandular trichomes; adaxial surface of the rachis and costae densely to moderately pubescent with arcuate, multicellular (4-8-celled), uniseriate, non-glandular trichomes and with occasional, short, 2-3(-8)-celled, branched or unbranched, glandular trichomes; blade oblong-ovate, normally pinnatifid although occasionally with secondary pinnatification of proximal pinnae, herbaceous to chartaceous, stiff, slightly thickened, 10-20(5-40) x 4-9(3-15) cm; 8-12(6-25) pinna-pairs per frond; pinnae narrowly oblong, proximal 1-3 pairs distinctly shorter than middle pinnae, tips acute to somewhat obtuse with conspicuous serrations, margins serrate to dentate, with the teeth spreading; veins mostly free, anastomosing irregularly and only occasionally near rachis, to anastomosing more frequently between the rachis and the proximal 1/3-1/2 of pinna, number of anastomosing pairs per pinna 0-several, occasionally many, varying from pinna to pinna on each blade; vein pathways commonly slightly uneven and forming an irregular pattern; sori oval, orange-brown to brown, (1.5-)2-4 x 1-2 mm, distinctly raised, often increasing in size closer to rachis, sometimes becoming confluent near rachis, lacking soral sporangiasters or paraphyses with sporangial-length stalks; capsule of sporangium without trichomes and with 11-14(8-17) indurated annulus cells; spores bilateral, yel low at maturity with coarsely verrucate to tuberculate surface, 57-86 µm long (mean = 68 µm; measurements include tubercles); chromosome number 2n = 74 II.A
Rhizome creeping, 5-10 mm diam., pale brown with an acrid plus slightly sweet taste, covered with acuminate, light brown scales; stipe green to greenish brown; abaxial surface of distal part of stipe and proximal part of rachis and costae sparsely covered with light brown, very narrowly acuminate, caducous scales with slightly erose margins; abaxial surface of the lamina with short, 2-3(-8)-celled, branched or unbranched, glandular trichomes; adaxial surface of the rachis and costae densely to moderately pubescent with arcuate, multicellular (4-8-celled), uniseriate, non-glandular trichomes and with occasional, short, 2-3(-8)-celled, branched or unbranched, glandular trichomes; blade oblong-ovate, normally pinnatifid although occasionally with secondary pinnatification of proximal pinnae, herbaceous to chartaceous, stiff, slightly thickened, 10-20(5-40) x 4-9(3-15) cm; 8-12(6-25) pinna-pairs per frond; pinnae narrowly oblong, proximal 1-3 pairs distinctly shorter than middle pinnae, tips acute to somewhat obtuse with conspicuous serrations, margins serrate to dentate, with the teeth spreading; veins mostly free, anastomosing irregularly and only occasionally near rachis, to anastomosing more frequently between the rachis and the proximal 1/3-1/2 of pinna, number of anastomosing pairs per pinna 0-several, occasionally many, varying from pinna to pinna on each blade; vein pathways commonly slightly uneven and forming an irregular pattern; sori oval, orange-brown to brown, (1.5-)2-4 x 1-2 mm, distinctly raised, often increasing in size closer to rachis, sometimes becoming confluent near rachis, lacking soral sporangiasters or paraphyses with sporangial-length stalks; capsule of sporangium without trichomes and with 11-14(8-17) indurated annulus cells; spores bilateral, yel low at maturity with coarsely verrucate to tuberculate surface, 57-86 µm long (mean = 68 µm; measurements include tubercles); chromosome number 2n = 74 II.A
Forma de vida
Epipétrica y EpífitaA
Ejemplares revisados
MEXICO: Munic. Tezcoco, 14 km SE of Tezcoco, 9 km SE of Tequesquinahuac, on Cerro Tlaloc, 22 Feb 1978, Koch 789 [7809?] (NY). OAXACA: Dist. Ixtlán, S edge of Cuajimoloyas, 23 km N of Dias Ordaz, 2 Oct 1973, Michel 7426 (NY, UCSB).A
Mexico, Nevado de Toluca, J. N. Rose & J. H. Painter 7946 (NY). Jalisco, Volcán Nevado de Colima, R. Dyer 51 (DUKE). Veracruz, Xalapa, Hahn s.n. (UC).B
Elevación
1450 – 3600 mB
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Discusión taxonómica
The epithet calirhiza is derived by combining parts of the names of the putative parents, P. californicum and P. glycyrrhiza. A