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Name

Acaciella angustissima var. texensis (Nutt. ex Torrey  & A. Gray) L. Rico, Fl. Guerrero 25: 44. 2005.

Rico Arce & Bachman
Anales del Jardín Botánico de Madrid
Vol. 63(2): 189-244
July-December 2006

Synonymy and types

Acacia texensis Nutt. ex Torrey & A. Gray, Fl. N.  Amer. 1: 404. 1840. Acaciella texensis (Nutt. ex Torrey  & A. Gray) Britton & Rose, N. Amer. Fl. 23:  100. 1928. Acacia filicioides var. texensis (Nutt. ex  Torrey & A. Gray) Small, Bull. New York Bot. Gard.  2: 93 (1901). Acacia angustissima var. texensis (Nutt.  ex Torrey & A. Gray) Isely, Sida 3: 372. 1969. Type: United States: Texas, T. Drummond 155 (holotype,  NY!; isotypes, K!, NY!, OXF!, W!). 

Acacia cuspidata Schldl., Linnaea 12: 573. 1838, non  A. cuspidata Cunn. ex Benth., London J. Bot. 1:  337. 1842. Acacia angustissima var. cuspidata  (Schldl.) Benson, Amer. J. Bot. 30: 238. 1943. Type: Mexico: Mühlenpfort s.n. (lectotype, designated  here, HAL, fragment of lectotype US!; photograph  of type, K! ex HAL). 

Acacia hirta Torrey & A. Gray, Fl. N. Amer. 1: 404.  1840. Acaciella hirta (Torrey & A. Gray) Britton &  Rose, N. Amer. Fl. 23: 102. 1928. Acacia angustissima   var. hirta (Torrey & A. Gray) B.L. Robinson,  Rhodora 10: 33. 1908. Type: United States: Arkansas, Red River & Arkansas,  Nuttall s.n. (lectotype, designated here, NY!). 

Acacia angustissima var. chisosiana Isely, Sida 3: 370.  1969. Type: United States: Chisos Mts. Top of Divide (of Wilson),  27-VII-1937, Warnock 20719 (holotype, NY!).  Acacia angustissima var. oaxacana B.L. Turner, Phytologia  81: 14. 1996. Type: México: Oaxaca, 5 km al SE de Cuicatlán, por  la desviación a San Pedro Ocotipac, 27 Aug. 1980,  F.G. Madrano [González Medrano] F-1568 (holotype,  TEX; isotype, MEXU!).

Formal description

Shrub to 3(6) m tall, twigs and branches glabrescent.  Leaflets usually glabrous, occasionally with very  shortly ciliate margins; pinnae to 6(8) pairs per leaf.  Peduncles without pearl glands.

Distribution

Mexico, north to Oaxaca and Puebla;  United States: Arizona, Texas, New Mexico.

Additional info

Habitat. Mainly in dry thorny scrub, also in seasonally  dry forest, mixed Quercus-Pinus forest, secondary  Quercus forest and grassland; it grows in limestone  and acid soil and on igneous parent rock. Alt.  (250)800-1300 m.

Vernacular names and uses. Kalbarrioh, hpahtlah  (Nahuatl).

Flowering time

Flowering May to November, fruiting  July to February.

Representative specimens

AUSTRALIA:

Queensland:

MEXICO:

Chihuahua:

Coahuila:

Durango:

Guerrero:

Hidalgo:

Jalisco:

Nuevo León:

Oaxaca:

Puebla:

Sinaloa:

Sonora:

Tamaulipas:

Zacatecas:

USA:

Arizona:

New Mexico:

Texas:

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