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Name

Acaciella tequilana var. crinita (Brandegee) L.  Rico

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

Synonymy and types

Acacia crinita Brandegee, Zoe 5: 198. 1905, basion.  Acaciella crinita (Brandegee) Britton & Rose, N.  Amer. Fl. 23: 105. 1928. Type: Mexico: Sinaloa, E of Culiacán, Cerro Colorado,  ca. 35 km from Durango border, Brandegee s.n.  (holotype, CAS).  Acaciella durangensis Britton & Rose, N. Amer. Fl. 23:  105. 1928. Type: Mexico: Durango, Sianori, González Ortega  5299 (holotype [fragment], NY!; isotypes, MEXU!,  US).

Formal description

Shrub up to 5 m tall, villous-hirsute with white or yellow  hairs throughout. Stipules 5-8 mm long, linear, ciliate,  fugacious. Leaves 13 cm long; petiole 2-2.5 cm  long, terete, usually densely hirsute; rachis 1.5-8 cm  long, hirsute, with 2-5 pairs of pinnae; pinnae 4-10 cm  long; paraphyllidia c. 1 mm long; leaflets (4)5-9(16)  pairs per pinna, 10-25 × 4-1.5(23) mm, elliptic, base  rounded to oblique, apex rounded, venation brochidodromous,  glabrous on both surfaces, membranaceous,  insertion central. Inflorescences consisting of clusters of  2-3 axillary or terminal racemes, main axis 22-27 cm  long, densely hirsute to glabrescent; peduncles 1-3(4)  cm long; densely yellow-hirsute, without pearl glands;  one inflorescence bract close to the flower head or near  middle of the peduncle, 1.2 mm long, with long cilia,  clavate, fugacious; floral bract 0.5-0.75 mm long,  glabrous or with a few long hairs, lanceolate, fugacious;  pedicels 0.75-1 mm long, glabrous; flowers white,  cream or pink, when dry reddish, in capitulum-like  racemes,18(20) mm in diam. at anthesis. Calyx 1.25  mm long, 5-lobed, almost truncate, glabrous. Corolla 4 mm long, 5-lobed, the lobes to more than half the  whole corolla length, glabrous. Stamens 7 mm long.  Ovary 1.5 mm long, glabrous, the stipe 1.25 mm long;  basal nectary 0.35 mm high. Legume 4.5-5.5(8) × 1-1.2  × 0.2 cm, flat, straight; valves chartaceous, conspicuously  reticulate-veined, glabrous, rounded at the base,  acute at apex; stipe 1.3 cm long; without a conspicuous  beak. Seeds 6-8 per fruit, 4-4.2 × 3-3.5 × 1.5 mm, only  seen immature.

Distribution

Mexico north: Chihuahua, Durango,  Sinaloa and Sonora.

Additional info

Habitat. In low deciduous forest, Quercus forest,  mixed Pinus-Quercus forest, desertic scrub with  Prosopis and Lycium; on rocky and grassy slopes. The  taxon resprouts readily after grassland fires. Alt. 300-  1200 m. 

Vernacular names. Gato, La nudita [lanudita, probably  referring to the hairiness of the plant].

Flowering time

Flowering December to July, fruiting in  March. 

Representative specimens

MEXICO:

Chihuahua:

Durango:

Sinaloa:

Sonora: 

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