B. Papp szerk.: Studia Botanica Hungarica 34. 2003 (Budapest, 2003)
Debreczy, Zsolt; Rácz, István: A re-assessment of the new taxa of firs (Abies Mill.) reported from Mexico in 1995
costa crassa usque 0.7 mm lata, praeter costam lineis 6-8 stomatum angustis 0.35 mm latis; folia ramulorum infernorum in sectione transversali elliptico-avicularia, obovata, folia ramulorum fertilium in sectione transversali obovata (elliptica), canalibus resiniferis marginalibus 2, latero-ventralibus; strobili breves, columnares, 6.5-8.5 cm longi, 3-3.6 cm lati, initio virides, postea virido-brunnei, umbone prominenti; strobili velutini, pilis 0.1-0.13 mm longis, pellucidis, erectis; squamae 150-200 (30^-0 x 5), flabellatae; bracteae sessiles, 0.5-0.8 cm longae, ala angulari, protrudenti, apice 3-4 mm longo; axis anguste-conicus; seniina 0.8-1 x 0.8 cm, ala 1-1.4 cm longa, obtusato-triangulari inslructa. Description: tree up to 35^4-0 m tall with single trunk, loose conical, later dense, round-topped crown with first ascending, later descending branches; bark: smooth light grey first, later ruptured, in old trees very thick, suberous with bloodred inner bark; branches: reddish brown, sporadically hairy with fine clear hairs up to 5-6 years; buds: vegetative buds typically subglobose, 2-3 mm long, terminal one flat (6-7 x 3 mm) on strong fertile shoots with 12-18 triangular, 3 mm long, wide, shiny brown scales with prominent midrib and eroded margin, not resinous; branchiets: light green to greyish brown, densely or sparsely (shade) hairy with 0.1-0.15 mm long clear hairs; leaves: on stem, "dichotomous", widely spreading, slightly ascending, forward curving on the upper side, 3-5 cm long, 1.5-2.2 mm wide, parallel sided, rounded and slightly (0.1 mm) emarginate at apex, flexible, shiny dark green above with up to 7 stomatophorus lines near the apex and a few lines down near the base of the leaves along the impressed midrib, the ventral side is silvery white with narrow green margins (0.1 mm) and midrib (0.25 mm) and two silvery stripes with (6—)9(— 10) stomatophorus lines, stomata 0.03 mm, ovate, leaves on fertile shoots often asymmetrically (on one side) acute, more succulent with wide (0.2 mm) pruinose stripe above, with up to 8 stomatophorus lines, midrib strong, up to 0.7 mm wide, the stomatophorous stripes are narrower (0.35 mm) with 6-8 lines of stomata. In cross section the leaves are ellipto-avicular, obovate (elliptical) on lower, obovate on fertile branchiets with 2 marginal latero-ventral resin canals; cones: short, columnar (6.5-8.5 x 3-3.6 cm) with prominent umbo, consist of 150-200 (30-40 x 5) cone scales, bright light green first, greenish brown later, velutinous with 0.1-0.13 mm long upright clear hairs, cone scales: flabellate with short (0.5-0.8 cm), enclosed (sessile) bract with protruding angular wings exceeding the 3^4- mm long apex; axis narrow conical; seeds: 0.8-1 x 0.8 cm with 1-1.4 cm long, rounded-triangular wing; fully developed but not mature when studied. Named after the state where the species was found with neo- (Lat. prefix = new-) as anterior is to distinguish it from Abies durangensis Mart., the well known and widely distributed (although not common) species of the region.
