Anemia jaliscana Maxon
Descripción
Rhizomes horizontal, compact, 2–5 mm diam.; rhizome hairs orange; sterile fronds erect, (4–)14–38 cm long; stipes 1⁄4–1⁄2 the frond length, 0.5-1.4 mm diam., stramineous, sparsely hirsute; blades oblong to narrowly deltate, 1-pinnate, 3–5 cm wide, thin; pinnae 5–8 pairs, opposite or subopposite, oblong to rhomboidovate, bases truncate, apices obtuse, margins irregularly incised to crenately lobed, denticulate; veins free; blade surfaces shorthairy adaxially, hairs sparse abaxially; fertile fronds to 28 cm tall, stipe 2⁄3 to 3⁄4 of the frond length; fertile pinnae approximate to the sterile pinnae, far surpassing the sterile blades in height; spores striate, ridges smooth.A
Distribución
México (Country) endemicB
Elevación
700–2000 mA
Ecología y Hábitat
Rocky, grassy slopes.A
Tipo de vegetación
Bosque de pino-encinoA
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Discusión taxonómica
Key to the Mexican Varieties of Anemia jaliscana
Pinnae incised to denticulate; terminal pinnae with base angle of 20–40(–50)°; Gro to Son & BCS…............................................................................................................................. var. jaliscana.
Pinnae subentire; terminal pinnae with base angle of 50–85°; Méx, w Gro .... var. integrifolia.
Anemia jaliscana var. jaliscana, N. Amer. Fl. 16(1): 44. 1909
Distinct from var. integrifolia by its incised to denticulate pinnae margins and narrowly cuneate bases of terminal pinnae; 2n=228 (Jal, Nay).
Distribution. Among rocks on grassy slopes in open pine or oak woods; 700–1700 m. Mexico.
Selected Specimens Examined. BCS (Carter 3484, MEXU, UC). Col (Reko 4849, US). Dgo (Ibana García 797, US). Gro (Lorea 2571, NY). Jal (Pringle 1833, NY). Méx (Mickel 712a, NY). Mich (Hinton 12212, NY). Nay (McVaugh 16416, NY). Sin (González Ortega 1504, MEXU). Son (Tenorio L. 10245, MEXU).
Anemia jaliscana var. integrifolia Mickel in Mem. New York Bot. Gard. 88: 53–54, f. 21F. 2004
Ab Anemia jaliscana Maxon var. jaliscana pinnis subintegris pinnisque apicalibus late cuneatis diversa. (L, integer, entire, + folium, leaf, alluding to the pinna margins being more nearly entire than those of the type variety.).
Distinct from var. jaliscana by its subentire pinna margins and broadly cuneate bases of terminal pinnae; 2n=228 (Gro, Méx).
Distribution. Rocky hillsides in pine or oak woods; 1120–2200 m. Mexico.
Specimens Examined. Gro (Hinton 9472, GH, NY; Lorea 801, 2552, NY). Méx (Hinton 8221, GH, NY; Matuda 31340, MEXU; Mickel 712a, NY).
Hinton 8221 (ARIZ) with malformed spores is mixed with A. hirsuta and is probably the hybrid between that and var. integrifolia, thus representing a counterpart to A. recognita, the sometimes fertile hybrid between A. hirsuta and A. jaliscana var. jaliscana. The range of var. integrifolia overlaps that of var. jaliscana in western Guerrero.
Anemia jaliscana is perhaps the most difficult species of Anemia to distinguish in Mexico. The pinnae are somewhat trapezoidal in the most distinctive form, but vary to more elliptic or suborbicular. Occasionally, the proximal pinnae are slightly incised. The pinna margins range from entire to finely denticulate, even on the same plant; pinnae from sterile fronds tend to be more nearly entire than those from fertile ones.
When pinna margins are incised, A. jaliscana may look more like A. hirsuta, with which it frequently hybridizes to form A. recondita. Hybrids are often mistaken for A. hirsuta or abnormal A. jaliscana. In fact, one of the NY isotype sheets of A. jaliscana has one plant of A. jaliscana and two of A. recondita. The two species (A. hirsuta and A. jaliscana) apparently share a common ancestor since there is regular pairing of approximately one genome (n=ca. 38II + 114I).
In the northern part of its range, especially in Sinaloa, plants of A. jaliscana may look much like A. affinis in having larger, more denticulate pinnae, more broadly oblong than in plants farther south. However, A. affinis can generally be distinguished by the pinnae being suborbicular and glabrous beneath, and being tetraploid (vs. hexaploid).A
Pinnae incised to denticulate; terminal pinnae with base angle of 20–40(–50)°; Gro to Son & BCS…............................................................................................................................. var. jaliscana.
Pinnae subentire; terminal pinnae with base angle of 50–85°; Méx, w Gro .... var. integrifolia.
Anemia jaliscana var. jaliscana, N. Amer. Fl. 16(1): 44. 1909
Distinct from var. integrifolia by its incised to denticulate pinnae margins and narrowly cuneate bases of terminal pinnae; 2n=228 (Jal, Nay).
Distribution. Among rocks on grassy slopes in open pine or oak woods; 700–1700 m. Mexico.
Selected Specimens Examined. BCS (Carter 3484, MEXU, UC). Col (Reko 4849, US). Dgo (Ibana García 797, US). Gro (Lorea 2571, NY). Jal (Pringle 1833, NY). Méx (Mickel 712a, NY). Mich (Hinton 12212, NY). Nay (McVaugh 16416, NY). Sin (González Ortega 1504, MEXU). Son (Tenorio L. 10245, MEXU).
Anemia jaliscana var. integrifolia Mickel in Mem. New York Bot. Gard. 88: 53–54, f. 21F. 2004
Ab Anemia jaliscana Maxon var. jaliscana pinnis subintegris pinnisque apicalibus late cuneatis diversa. (L, integer, entire, + folium, leaf, alluding to the pinna margins being more nearly entire than those of the type variety.).
Distinct from var. jaliscana by its subentire pinna margins and broadly cuneate bases of terminal pinnae; 2n=228 (Gro, Méx).
Distribution. Rocky hillsides in pine or oak woods; 1120–2200 m. Mexico.
Specimens Examined. Gro (Hinton 9472, GH, NY; Lorea 801, 2552, NY). Méx (Hinton 8221, GH, NY; Matuda 31340, MEXU; Mickel 712a, NY).
Hinton 8221 (ARIZ) with malformed spores is mixed with A. hirsuta and is probably the hybrid between that and var. integrifolia, thus representing a counterpart to A. recognita, the sometimes fertile hybrid between A. hirsuta and A. jaliscana var. jaliscana. The range of var. integrifolia overlaps that of var. jaliscana in western Guerrero.
Anemia jaliscana is perhaps the most difficult species of Anemia to distinguish in Mexico. The pinnae are somewhat trapezoidal in the most distinctive form, but vary to more elliptic or suborbicular. Occasionally, the proximal pinnae are slightly incised. The pinna margins range from entire to finely denticulate, even on the same plant; pinnae from sterile fronds tend to be more nearly entire than those from fertile ones.
When pinna margins are incised, A. jaliscana may look more like A. hirsuta, with which it frequently hybridizes to form A. recondita. Hybrids are often mistaken for A. hirsuta or abnormal A. jaliscana. In fact, one of the NY isotype sheets of A. jaliscana has one plant of A. jaliscana and two of A. recondita. The two species (A. hirsuta and A. jaliscana) apparently share a common ancestor since there is regular pairing of approximately one genome (n=ca. 38II + 114I).
In the northern part of its range, especially in Sinaloa, plants of A. jaliscana may look much like A. affinis in having larger, more denticulate pinnae, more broadly oblong than in plants farther south. However, A. affinis can generally be distinguished by the pinnae being suborbicular and glabrous beneath, and being tetraploid (vs. hexaploid).A