Dennstaedtia globulifera

Content

Altitude

600–2100 mA

A. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88

Description

Rhizomes long-creeping, 4–10 mm diam., hairy; fronds 1–3 m long; stipes stramineous, lacking buds at bases; blades deltate, tripinnate to subquadripinnate, 1–1.5 m wide; proximal pinnae stalked, basal pinnae opposite, basal pinnules not especially reduced; axes of penultimate segments winged adaxially; sterile vein tips slender, clavate; laminae pubescent on abaxial surfaces, hairs 1 mm long, clear brown, stiff, spreading; indusia globular, (0.5–)1 mm deep, (0.6–)1–1.3 mm wide; 2n=ca. 94 (Jam, Parag).B

B. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88

Discussion

The large, globular indusia and opposite basal pinnules distinguish this from other species of Dennstaedtia. The small sori of D. gracilis seem to be only a variant of D. globulifera.C

C. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88

Distribution

Caribe presentD, Costa Rica presentD, Guatemala presentD, Honduras presentD, México (Country) native and not endemicD, Nicaragua presentD, Panama presentD, South America presentD

D. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88

Specimen

Chis (Breedlove 31351, NY). Gro (Tenorio L. 424, ENCB). Hgo (Clark 7375, NY). Jal (Machuca Nuñez 1269, NY). Mich (Torres y Ramírez 13771, XAL). Mor (Lyonnet 2801, MEXU; Rose 11058, NY). Oax (Mickel 6145, NY). NL (Rodríquez L. 12, NY). Qro (Rzedowski 46579, XAL). SLP (Mickel 598, NY). Tam (Sharp 5077, US). Ver (Purpus 6192, NY).E

E. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88

Synonymy

Dennstaedtia globulifera Hieron., Bot. Jahrb. Syst. 34(4): 455. 1904

=Polypodium globuliferum Poir., Encycl. [J. Lamarck & al.] 5: 554. 1804

=Dicksonia globulifera (Poir.) Kuntze, Revis. Gen. Pl. 3(3): 378. 1898

=Dennstaedtia gracilis A.Rojas & Tejero, Revista Biol. Trop. 50(3-4): 1008 (1007-1012), f.1-3). 2002