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Abies hidalgensis

Abies hidalgensis - Hidalgo fir description


Scientific name: Abies hidalgensis  Debreczy, I.Rácz & Guízar  1995

Synonyms: -

Common names: Hidalgo fir (English), Abete de Hidalgo (Spanish)



Tree to 18(-25) m tall, with trunk to 0.4-0.8 m in diameter. Bark smooth, light grey in young trees, on large trunks breaking into irregular, large plates, thick, inner bark red. Branches spreading and ascending, higher orders descending in the lower part of the tree, forming a columnar-conical crown. Foliage branchlets robust, smooth or ridged and grooved on leading shoots, new shoots densely pubescent with short, yellowish brown hairs. Vegetative buds small, partly hidden by short, incurving leaves, slightly resinous; bud scales triangular. Leaves pectinately arranged, distichous, shortest on the upper side of branchlets, (1-)3-5(-6) cm long, linear, curving slightly downward or forward, shortly bifid or emarginate at apex, lustrous dark green or dull greyish green, with white stomatal bands on the abaxial side; stomata in few to several lines on the upper side, in two white bands below separated by a green midrib; resin ducts 2-5, medial, on coning branches up to 7. Pollen cones lateral, crowded, 10-12 mm long, yellow, with puberulent microsporophylls. Seed cones lateral, erect, short pedunculate, cylindrical, 6.5-8 cm long, 3.5-4 cm wide, pruinose green at maturity, apex obtusely rounded or slightly umbilicate; cone rachis narrowly conical. Seed scales flabellate to wide cyathiform, green to greyish green, densely velutinous with very short, white, appressed hairs; bracts short, 5-8 mm long, spathulate, margins serrate, without a protruding cusp, entirely included. Seeds narrowly triangular with resin blisters, seed wings yellowish grey.

Endemic to Mexico: Hidalgo (canyon near village of Metepec); 2,000-2,300 m.


Conservation Status

Red List Category & Criteria: Vulnerable


Varieties: -


Attribution from: Conifers Garden