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Compilation
Quercus carmenensis

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Isolectotype of Quercus carmenensis C. H. Mull. [family FAGACEAE]
Isolectotype of Quercus carmenensis C. H. Müller [family FAGACEAE]
Isotype of Quercus undulata Torr. [family FAGACEAE]
Filed as Quercus carmenensis C. H. Mueller [family FAGACEAE]
Lectotype of Quercus carmenensis C. H. Mull. [family FAGACEAE]
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Name

Identification
Quercus undulata Torrey [family FAGACEAE ] (stored under name); Verified by D. Breedlove, Isotype of Quercus carmenensis C. H. Müller [family FAGACEAE ] Verified by C. H. Müll., 1937
Related name
  • Quercus carmenensis
  • Quercus obtusifolia
  • Quercus undulata
  • Quercus marshii

Flora

Entry for Quercus carmenensis C. H. Muller [family FAGACEAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 3,
Names
Quercus carmenensis C. H. Muller [family FAGACEAE], Amer. Midl. Naturalist, 18: 847. 1937
Information
Shrubs or trees, deciduous, shrubs 0.5-2 m, rhizomatous, trees (on better sites) to l2 m, trunk 0.75 m diam. Bark light gray, checkered or furrowed. Twigs often strikingly red, 1-1.5 mm diam., sparingly (rarely densely) stellate-pubescent, somewhat glabrescent and gray 2d year. Buds light brown, nearly round, 1-1.5 mm, indumentum similar to twigs. Leaves: petiole usually strikingly red, (2-)5-l0 mm, ca. 1 mm diam. Leaf blade obovate or narrowly obovate, (20-)30-50 × l0-30 mm, thin to moderately leathery, base cuneate to rounded, margins shallowly and irregularly lobed or coarsely toothed in distal 1/2, rarely subentire, teeth mucronate, secondary veins 9-l2 on each side, branching or passing directly to teeth, apex acute, sometimes broadly rounded; surfaces abaxially light green or yellow-green, prominently pubescent with minute, erect velvety hairs, adaxially surfaces dark green, sparsely and minutely stellate-pubescent. Acorns solitary or paired, subsessile or short-pedunculate (immature); cup (mature) unknown; scales (immature) light brown, tip acute, canescent. Nut unknown. Cotyledons unknown.
Conservation Status
of conservation concern
Discussion
Shrublands and woodlands on limestone; of conservation concern; 2200-2500 m; Tex.; Mexico (Coahuila).
Quercus carmenensis is known in the United States from only one collection from the Chisos Mountains, Texas; otherwise, it is known in the Sierra del Carmen region, Coahuila, Mexico.

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