Name
Acaciella tequilana var. pubifoliolata L. Rico
Rico Arce & BachmanAnales del Jardín Botánico de MadridVol. 63(2): 189-244July-December 2006
Synonymy and types
Type: Mexico: Colima, on the road from Colima to Minatitlán, 12 km from Colima, steep slopes, 19º17' N, 103º46' W, D. Macqueen 188 (holotype, MEXU!; isotypes, EAP, FHO, K!).
Formal description
Perennial herb or shrub to 4 m tall; twigs yellow-hirsute to hispid. Stipules triangular, 4-5 mm long, fugacious. Leaves 12 cm long; petiole 3.5-4 cm long, hirsute; rachis 6-12 cm long, white and yellow-hirsute, with 3-4 pairs of pinnae; pinnae 4-7 cm long; paraphyllidia 0.5 mm long; leaflets 4-5(7) pairs per pinna, 1-2.5 × 0.5-1.2 cm, elliptic, base acute, apex slightly acute, venation brochidodromous, puberulous on both surfaces, chartaceous, almost velutinous, margins involute. Inflorescences consist of clusters of 3-5 axillary or terminal racemes, main axis 15-18(22) cm long, yellow-hirsute; peduncles 1-1.5(2) cm long, puberulous hirsute, without pearl glands; two inflorescence bracts, one at the peduncle base, 3.5 mm long, puberulous and ciliate, linear, fugacious, another near to the capitulum-like raceme, 1.5 mm long, linear, long-puberulous, fugacious; floral bract 0.75 mm long, long- puberulous, clavate, fugacious; pedicels up to 1.5 mm long, glabrous; flowers white, becoming orange or reddish when dry, in short capitulum-like racemes up to 14 mm long at anthesis. Calyx 1.2 mm long, 5-lobed, the lobes almost truncate, pubescent. Corolla 3 mm long, 5-lobed, the lobes to more than half the whole corolla length, pubescent. Stamens 5 mm long. Ovary 1.2 mm long, glabrous, short-stipitate [the stipe 0.75mm long]; basal nectary 0.5 mm high. Legume 5-6.5 × 0.8-1.2 × 0.3 cm, flat, straight, dehiscent along both sutures; valves chartaceous, densely hirsutellous, rounded at the base and apex; stipe c. 1 cm long; beak 1.2 -1.3(1.5) mm long. Seeds 5 per fruit, ovoid, 4 × 3 × 2 mm.
Distribution
Mexico central: Jalisco and Colima.
Additional info
Habitat. In scrub and low deciduous forest with Acacia cochliacantha and Caesalpinia sp. pl. as dominants; on feozem type clay soil (formed by haplic+vertisol+ litosol). Alt. 300-900 m.
Flowering time
Flowering from September to November; fruiting in November.
Representative specimens
MEXICO:
Colima:
- Tecolapa, Cerro Calderas, 19º 01' N, 103º 81' W, 397 m, 18-X-1987, Leger, F. Cuida 1149 (MEXU);
- El Colomo, 10 km al SW de la Cd. de Manzanillo, 19º 03' N, 104º 15' W, 350 m, 17-I-1984, Santana, F.J. 746 (IBUG);
- 5 km al NE de Jala, brecha Jala-Coquimatlán, 19º 08' N, 103º 51' W, 400 m, 30-X- 1984, Santana, F.J. 867 (IBUG, MEXU).
Jalisco:
- a 8 km al NE de la desviación a Tuxcacuesco, Mpio. de Venustiano Carranza, 19º 50' N, 103º 55' W, 898 m, 5-IX-1979, Magallanes, J.A.S. 1881 (MEXU, MO);
- El Platanar, camino El Naranjo-La Higuerilla;
- Municipio de Pihuamo, 19º 25' N, 103º 26' W, 23-XI-1981, Magallanes, J.A.S. 3294 (MEXU).