Axinandra

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Axinandra

Description

Leaves elliptic to oblong, sometimes ovate, glabrous; Inflorescence terminal or axillary and then at the end of the twigs, erect, poorly branched; Flowers bisexual, 5(-4)-merous, pedicelled. Sepals 5 (4), deltoid, more or less acuminate, evanescent in fruit. Petals 5 (4), valvate-connate or valvate- (or somewhat imbricate-)condupli-cate or imbricate-contorted, more or less connate or cohering and soon dropping simultaneously in the shape of an umbrella, flimsy, consisting of a wide basal part tapering into a narrower median part which widens into a whether or not well-developed, frayed apical part, induplicate and enveloping the stamens which are situated in pairs between two longitudinal lamellae on the inside of each petal. Stamens 10 (8), epi- and alternisepalous, (sub)equal, caducous; Ovary inferior, immersed in the receptacle, 3-(2-)carpellate, 6-(4-)celled, with free or towards the base somewhat connate septs, glabrous; Capsule half-inferior, big and woody, globose to ellipsoid, (sub)glabrous, when young provided with a fragment of the style, inside dehiscent down to the bottom with 2-6 valves of which only the upper parts protrude from that part of the capsule which is surrounded by and fused with the enlarged receptacle of which the rim often remains visible as an irregular more or less conspicuous rib; Ovules 1 or 2 per cell, two (one) by two (one) in vertical position inserted basally on either side of the 3 (2) stouter ones of the 6 (4) septs. Seeds few, in vertical position;

Distribution

Asia-Tropical:, Borneo presentpresentpresentpresent; Malaya (Peninsular Malaysia present) Billiton I: present Ceylon: present
Ceylon (1 sp.) and Malesia: Malay Peninsula (one record) and Borneo (3 spp.) but nowhere common. .
A. zeylanica was also mentioned to occur in Borneo by BAKHUIZEN f. () but HALLIER F. 2683, on which this was based, belongs to A. coriacea. The same author (l.e.) recorded A. borneensis BAKH.F. (= A. beccariana) from Billiton I.; the sheet TEYSMANN s.n. was collected, however, on Mt Blitong in Borneo.
As with Dactylocladus the extreme rarity of the genus on the Sunda-shelf west of Borneo is remarkable and remains unexplained; sofar known Axinandra is not bound to a rare or very specialized biotope.

Citation

BAKH.F. - in Rec. Trav. Bot. Néerl. 1943: preprint 332
BEUS.-OSINGA & BEUS. - in Blumea. 1975: 262
B. & H. - in Gen. Pl. 1867: 784
COGNIAUX - in DC., Mon. Phan. 7. 1891: 1113
MEIJER - in Ceyl. J. Se. (Biol. Se.). 1972: 72
BAILL. - in Adansonia. 1876: 84
THW., En. Pl. Zeyl. 1859: 122
CLARKE - in Hook. f., Fl. Br. Ind. 2. 1879: 581
KRASSER - in E. & P., Nat. Pfl. Fam. 3. 1893: 142, 196
BEDD. - in Fl. Sylv. 1869: t. 207