Published January 5, 2018
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FIGURE 5. A–F in Formal recognition of six subordinate taxa within the South American bracken fern, Pteridium esculentum (P. esculentum subsp. arachnoideum s.l. -Dennstaedtiaceae), based on morphology and geography
Authors/Creators
- 1. Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Av. P.H. Rolfs s.n., Viçosa, MG, Brazil, CEP 36570-900
- 2. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", CONICET, División Plantas Vasculares, Av. Ángel Gallardo 470- Piso 2, C1405DJR, Ciudad Autónoma de Buenos Aires, Argentina
- 3. Instituto de Botânica, Herbário SP, Cx.P. 68041, São Paulo, SP, Brazil, CEP 04045-972
Description
FIGURE 5. A–F. Pteridium esculentum subsp. arachnoideum var. paedomorficum: A. pinnae (Schwartsburd 3844), B. segment, abaxially (Schwartsburd 3844), C. segment, cross section, abaxial side up, showing sericeous veins, with with lax, arachnoid hairs, and glabrous laminar tissue between the veins (Schwartsburd 3844), D. segment, abaxially (Schwartsburd 3844), E. segment, cross section, abaxial side up, showing veins with setose hairs, and glabrous laminar tissue between the veins, F–H. Pteridium esculentum subsp. arachnoideum × P. esculentum subsp. campestre: F. pinnule (Fay 2413), G. segment, abaxially (Guedes 14217), H. segment, cross section, abaxial side up, showing strigose veins, with with stiff, acicular hairs, and laminar tissue between the veins with farinaceous appearance, fully covered by gnarled hairs (Guedes 14217). Drawn by R. Pinto.
Notes
Published as part of Schwartsburd, Pedro B., Yañez, Agustina & Prado, Jefferson, 2018, Formal recognition of six subordinate taxa within the South American bracken fern, Pteridium esculentum (P. esculentum subsp. arachnoideum s.l. -Dennstaedtiaceae), based on morphology and geography, pp. 22-40 in Phytotaxa 333 (1) on page 34, DOI: 10.11646/phytotaxa.333.1.2, http://zenodo.org/record/13723356
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