Alansmia turrialbae (Christ) Moguel & M.Kessler

  • Authority

    Moguel Velázquez, Ana L. & Kessler, Michael. 2013. Grammitid ferns (Polypodiaceae). III. . Fl. Neotrop. Monogr. 113: 1--68. (Published by NYBG Press)

  • Family

    Polypodiaceae

  • Scientific Name

    Alansmia turrialbae (Christ) Moguel & M.Kessler

  • Type

    Type. Costa Rica. Cartago: Troncs d arbres au pied du Volcán de Turrialba, 2750 m, 26 Jan 1889, H. F. Pittier 847 (lectotype, designated by Lellinger, 1989: p. 321, BR; isolectotype, US).

  • Synonyms

    Polypodium turrialbae Christ, Ctenopteris turrialbae (Christ) Copel., Grammitis turrialbae (Christ) F.Seym., Terpsichore turrialbae (Christ) A.R.Sm., Polypodium exsudans Christ, Terpsichore glandulifera A.Rojas, Alansmia glandulifera (A.Rojas) Moguel & M.Kessler

  • Description

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    Species Description - Plants epiphytic; rhizomes 0.5-2.0 cm long, short-creeping to suberect, radially symmetric, lacking rhizome scales but with simple, yellow to stramineous, up to 2 mm long setat\ fronds 10-50(-110) x 3-7 cm, caespitose, pendulous with indeterminate growth; stipes 1-3 cm x 0.3-0.4 mm, castaneous to black, moderately densely covered with simple, yellow or stramineous, 0.5-2.0 mm long setae and simple or branched, clavate, yellow, 0.1-0.2 mm long, glandular hairs; blades linear-lanceolate, pinnatisect, very thin-chartaceous, gradually tapering at both ends, sometimes with 5(—10) reduced segment pairs at the bases; rachises sclerenchymatous, castaneous to black, scattered to moderately densely covered with simple, hyaline, yellow, 0.5-3.0 mm long setae and puberulent like the stipes; pinnae perpendicular to 70° oblique to the rachises, contiguous to moderately separated, 0.7-4.0 x 0.2-0.5 cm, linear to linear-deltate, symmetric or slightly asymmetric at the bases, acroscopically adnate to slightly curved, basiscopically adnate to slightly decurrent, apices acute to obtuse, margins setose, the setae simple and bifurcate, yellow, 0.5-2.0 mm long; veins free, 1-furcate, ending medially, conspicuous, dark brown; blade surfaces adaxially and abaxially scarcely covered with simple, yellow or stramineous, 0.5-2.0 mm long setae and also moderately to abundantly covered with glandular hairs like the stipes; hydathodes with lime dots; sori round, arising at the vein apices, up to 30 per pinna; receptacles not or sparsely setose; sporangia ciliate, the cilia to 0.6 mm long or rarely without cilia but then with ca. 0.1 mm long, yellow, clavate, glandular hairs.

  • Discussion

    Alansmia turrialbae differs from the other species in the genus by the combination of two conspicuous characters: the lack of rhizome scales and the presence of lime dots on the hydathodes.

  • Distribution

    Costa Rica and Panama, in shady places in premontane rainforests and cloud forests, between 1200 and 2900 m.

    Puntarenas Costa Rica Central America| Chiriquí Panamá Central America| Alajuela Costa Rica Central America| Cartago Costa Rica Central America| Heredia Costa Rica Central America| Limón Costa Rica Central America| San José Costa Rica Central America|