Diplazium donnell-smithii Christ
Descripción
Differs from D. franconis by: stipes greenish stramineous, with sparse to scattered hair-like, lax, twisted scales 0.8–2 mm long; blades herbaceous to chartaceous, 3-pinnate, at least proximally, deltate; pinnae with pinnules stalked 1–4 mm, 10–15 free pairs per pinna, the largest 5–10 X 1.5–2.5 cm, inequilaterally deltate, adnate-decurrent toward pinna tips, acute at apices, the larger pinnules with 1–4 free pinnulets at the bases; indument absent except for minute papillae 0.05 mm long in costal and costular grooves adaxially and scattered to rare, dark reddish brown, hairlike scales 0.5–2 mm long on costae and costules abaxially; indusia 2–4 X 0.4–0.5 mm, entire to subentire.A
Forma de vida
TerrestreA
Ejemplar revisado
Oax (Hellwig 457, NY, US). Ver (Barrington 445, MEXU; Conant 737, MEXU; Fink 32, US; Hernández M. 1381a, NY; Palacios-Rios 3323, XAL; Ventura A. 3271, ENCB, MEXU).
A
A
Elevación
(150 –)1300 – 1650 mA
Tipo de vegetación
Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Other than having more divided blades (truly 3-pinnate, at least proximally), the Oaxacan specimen of D. donnell-smithii is distinguishable from D. franconis by the numerous hair-like scales on the rachises, costae, and costules abaxially. The isotype at US (Donnell-Smtih 5680) differs from the Oaxacan specimen in having rare, hair-like, clathrate scales.
Diplazium hahnii (E. Fourn.) C. Chr. (Asplenium hahnii E. Fourn., Mexic. Pl. 1: 109. 1872; type from Mexico, Veracruz, Mt. Escamela, Hahn s.n., P!, photos NY!, UC, US) may be conspecific with D. donnell-smithii, but the holotype is somewhat teratological. If D. hahnii is conspecific with D. donnell-smithii, the former has priority. See under D. franconis for further comparison and discussion of putative hybrids with that species.
Adams (in Davidse et al., 1995) cited Ghiesbreght 361 (BM, not seen) as this species from Guatemala, but we are unaware that Ghiesbreght collected in Guatemala; most likely the specimen is from Chiapas. Ghiesbreght 361 (K) is from Chiapas, and is D. drepanolobium (Smith, 1981), a species quite different from D. donnell-smithii.
A
Diplazium hahnii (E. Fourn.) C. Chr. (Asplenium hahnii E. Fourn., Mexic. Pl. 1: 109. 1872; type from Mexico, Veracruz, Mt. Escamela, Hahn s.n., P!, photos NY!, UC, US) may be conspecific with D. donnell-smithii, but the holotype is somewhat teratological. If D. hahnii is conspecific with D. donnell-smithii, the former has priority. See under D. franconis for further comparison and discussion of putative hybrids with that species.
Adams (in Davidse et al., 1995) cited Ghiesbreght 361 (BM, not seen) as this species from Guatemala, but we are unaware that Ghiesbreght collected in Guatemala; most likely the specimen is from Chiapas. Ghiesbreght 361 (K) is from Chiapas, and is D. drepanolobium (Smith, 1981), a species quite different from D. donnell-smithii.
A