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Name

Acaciella glauca (L.) L. Rico

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

Synonymy and types

Mimosa glauca L., Sp. Pl.: 520. 1753, basion. Acacia  glauca (L.) Moench, Meth. Pl.: 466. 1794. Type: "Habitat in America" (lectotype, designated by:  de Wit 1961, L, Herb. A. van Royen s.n., sheet no.  908.132-54). 

Acaciella curassavica Britton & Killip ex Killip, J. Washington  Ac. Sci. 24: 47. 1934. Acacia curassavica  (Britton & Killip ex Killip) Stehlé, Bull. du Mus.  Hist. Natl., ser. 2, 18: 191. 1946. Type: Netherlands Antilles: Curaçao, limestone rocks  near Willemstad, 20-27 March, 1913, N.L. Britton &  J.A. Shafer 2943 (holotype, NY!; isotypes, U, US). 

Formal description

Shrub to 6 m tall, glabrous. Stipules linear, 5 mm  long, fugacious. Leaves 10(15) cm long; petiole 2.5-  3.5 cm long, terete, glabrous or sparingly strigoserachis 4-5 cm long, glabrous or sparingly shortstrigose,  with 2-8 pairs of pinnae; pinnae 4-5 cm long;  paraphyllidia <1 mm long; leaflets 6-21 pairs per pinna, 3.5-9 × 3-6 mm, oblong-elliptic, base obtuse, apex  rounded to slightly acute, venation reticulate (brochidodromous),  visible only on the under surface,  glabrous on both surfaces or occasionally shortstrigose  below, margins slightly involute on basal half,  membranaceous. Inflorescences consisting of clusters  of 2-3 capitulum-like racemes on main axis to 12 cm  long, glabrous; peduncles 1-1.5 cm long, glabrous,  without pearl glands; a single inflorescence bract at  the base of each raceme peduncle, linear, 2-2.5 mm,  glabrous, fugacious; floral bract 1 mm long, glabrousclavate, fugacious; pedicels 1 mm long, glabrous;  flowers white, yellow when dry, in short racemes, 1.5-  2 cm long, when elongated, or 1.5 cm diam. when capitulum- like at anthesis. Calyx 1 mm long, 5-lobed,  the lobes less than ¼ of the length of the whole calyxglabrous. Corolla 2-2.5 mm long, 5-lobed, the lobes to  more than half the whole corolla length, glabrous. Stamens  6-7 mm long. Ovary c. 1 mm long, glabrous,  short-stipitate; the stipe 0.4 mm long; basal nectary  0.4 mm high. Legume 4.5-8 × 1.2-1.5 × 0.3 cm, flat,  straight; valves chartaceous, conspicuously reticulate  veined, glabrous, acute at the base and apex; stipe  (0.6)1-1.5 cm long; beak 1-2.5 mm long. Seeds 8 per  fruit, broadly ellipsoid, 3.5 × 3 × 1.8 mm.

Distribution

South America: Venezuelan coast;  Caribbean: Barbados, Curaçao (Netherlands Antilles),  St. Vincent and Martinique, Introduced to  Australia, Thailand, Indonesia and West Java.

Additional info

Habitat. From sea level to 500 m. 

Flowering time

Flowering and fruiting in January to  February.   

Representative specimens

BARBADOS:

St. John:

INDONESIA:

Bogor:

MARTINIQUE:

MONSERRAT:

Isles Bay:

Olveston:

NETHERLANDS  ANTILLES:

Curaçao:

ST. VICENT:

Glen Farm:

THAILAND:

Central Bangkok:

VENEZUELA:

Miranda:

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