Thelypteris resinifera (Desv.) Proctor
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Authority
Mickel, John T. & Smith, Alan R. 2004. The pteridophytes of Mexico. Mem. New York Bot. Gard. 88: 1-1054.
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Family
Thelypteridaceae
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Scientific Name
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Description
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Species Description - Rhizomes erect; fronds (15–)25–100(–130) cm long; stipes stramineous to tan, usually mucilaginous when young, 2–10(–25) cm x 1–3(–6) mm diam., mostly less than 10(–25) cm long; blades to 110 x 4–25(–40) cm, with to 12 pairs of gradually reduced proximal pinnae, lowermost pinnae hastate to auriculate; pinnae to 12(–20) x (0.4–)0.7–1.5(–2) cm (excluding basal auricles), ascending in the distal third of blades, incised to within 1 mm of costae; aerophores short, peg-like at pinna bases, or seemingly absent; segments usually very oblique to the costae, often falcate, deltate to lanceolate, to ca. 2.5 mm wide; veins (3–) 5–10 pairs per segment; indument abaxially of usually short hairs mostly less than 0.3(–0.5) mm (occasionally glabrous) on rachises, costae, and costules, tissue between veins often shorthairy and usually with numerous golden to reddish, sessile, hemispherical, resinous glands; sori medial to supramedial, with persistent tan usually glandular indusia; sporangia glabrous; 2n=58 (Ver, var. resinifera), 116 (Jam).
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Discussion
Polypodium resiniferum Desv., Ges. Naturf. Freunde Berlin Mag. Neuesten Entdeck. Gesammten Naturk. 5: 317. 1811. Dryopteris resinifera (Desv.) Weath., Contr. Gray Herb. 114: 32. 1936. Amauropelta resinifera (Desv.) Pic. Serm., Webbia 31: 251. 1977. Type. “Habitat in America calidiore.” collector not stated (P!).