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Manual of the New Zealand Flora.

5. Ackama, A. Cunn

5. Ackama, A. Cunn.

Small trees. Leaves opposite, pinnate, stipulate. Flowers small, unisexual, in compound panicles. Calyx-tube short, lobes 5, ovate-triangular, persistent, valvate. Petals 5, inserted under the margin of a perigynous disc, scarcely longer than the calyx. Stamens 10, inserted with the petals; filaments filiform, the alternate ones longer; anthers didymous. Ovary free, 2-celled; styles 2, persistent; ovules numerous in each cell. Capsule small, coriaceous, turgid, 2-celled, septicidally 2-valved. Seeds ovoid, apiculate, hairy; embryo cylindric, in the axis of fleshy albumen.

Besides the New Zealand species, which is endemic, there is another from Australia. The genus only differs from Weinmannia in the paniculate inflorescence and valvate calyx.

  • 1. A. rosæfolia, A. Cunn. Precur. n. 520.—A handsome small tree 20–40 ft. high, with a trunk 1–2 ft. diam.; branchlets, leaves, petioles, and inflorescence more or less covered with short brownish page 138pubescence. Leaves 3–10 in. long, imparipinnate; leaflets 3–8 pairs, 1–3 in. long, narrow-oblong to elliptical, sessile or very shortly petioled, acute, acutely serrate, membranous, upper larger than the lower; stipules large, leafy, toothed, deciduous. Panicles much branched, many-flowered, longer or shorter than the leaves. Flowers unisexual, minute, 1/10 in. diam., sessile on the slender branches of the panicle. Ovary densely pilose. Capsule very small, ⅛ in long, sparingly silky when mature.—Raoul, Choix, 47; Hook. f. Fl. Nov. Zel. i. 79; Handb. N.Z. Fl. 60; Kirk, Forest Fl. t. 63; Students' Fl. 139. Weinmannia rosæfolia, A. Gray, Bot. U.S. Expl. Exped. 671, t. 84.

    North Island: From Kaitaia and Mongonui southwards to Whangarei, not common. Makamaka. September–October.