Derivation: After Rembert Dodoens, 1517-1585, a Flemish botanist.

Synonymy: Not Applicable

Common name: Hop-bushes.

Description:
Dioecious or polygamo-dioecious shrubs, 0.1-4 m high; leaves simple or pinnate, sessile or petiolate, usually viscous, usually with flat resinous glands or sometimes with raised glands, glabrous to pubescent.

Flowers mostly unisexual, solitary to paniculate, axillary or terminal; sepals 3-6, rarely 7, free, usually viscous, persistent or caducous, valvate or imbricate; petals 0; disk inconspicuous; stamens 6-12, filaments glabrous, less than 2.5 mm long; ovary 3-5-celled, angled or sometimes rounded, glabrous or sometimes pubescent, viscous, often covered with a layer of resin, 2 ovules per cell; style filiform, often twisted spirally, to 15 mm long, shortly lobed at the apex.

Fruit a dehiscent capsule, 3-5-angled or 3-5-winged, the dorsal angle of each carpel usually extended into an appendage which may be a vertical membranous wing or a small lobe, or appendage sometimes absent; seeds lenticular, 1.5-3.5 mm long, black; aril sometimes present.

Distribution:  Primarily an Australian genus with 61 species (59 endemic); 5 other species occur in tropical areas. (West (1984) Brunonia 7:1-194.)

Biology: No text

Uses: D. viscosa, and especially a purple-leaved form originating in New Zealand's South Island, is grown extensively in horticulture. In other countries this species is used for sand-binding, land reclamation and hedges. The hard close-grained wood is used for engraving and turning and the leaves have been utilised for various medicinal purposes.

Key to Species:

1. Leaves simple or pinnatifid
2. Capsule prominently winged, at least to 10 mm long, appendages always present as membranous wings usually more than 2 mm broad (c. 0.5 mm in D. procumbens) and extending from the base to the apex of the capsule
3. Leaves pinnatifid or irregularly 2-12-lobed, the lobes obtuse to rounded	D. lobulata 6.
3. Leaves entire to irregularly sinuolate or irregularly denticulate or revolute and with 1-4 irregular teeth above the middle of the leaf, never pinnatifid
4. Prostrate shrubs; capsule 8-10.5 mm broad, valves undulate, wings c. 0.5 mm broad, crustaceous	D. procumbens 8.
4. Erect or spreading shrubs; capsule usually 11-28 mm broad, rarely as narrow as c. 9 mm, valves not undulate, wings 2-10 mm broad, membranous
5. Flowers solitary or rarely 2 together; leaves with raised glands, petiolate; lamina oblong or rarely oblanceolate or narrow-elliptic; petiole 1-3.5 mm long	D. intricata 5.
5. Flowers in panicles; leaves with flat glands, sessile or petiolate; lamina of various shapes, if oblong then not petiolate; petiole 1-20 mm long	D. viscosa 12.
2. Capsule more or less globose and angled, not prominently winged, less than 10 mm long, appendages often absent, or lobe-like or very narrow wings 0.5-1 mm broad and usually above the middle of the capsule only
6. Leaves linear, oblong or narrow-elliptic, 0.1-0.3 cm broad, revolute; capsule appendages to 0.5 mm broad
7. Leaves 0.1-0.2 cm broad; pedicels 1-1.5 mm long; capsule 5-7 mm long	D. hexandra 3.
7. Leaves 0.2-0.3 cm broad; pedicels 1.5-2.6 mm long; capsule 4-5 mm long	D. tepperi 11.
6. Leaves usually obovate or oblanceolate, rarely oblong, 0.3-1.5 cm broad, not revolute; capsule appendages 0.5-1 mm broad
8. Capsule usually 3-carpellate, rarely 4-carpellate, septicidally dehiscent, 6.5-8.5 mm long; sepals less than 1 mm broad	D. bursariifolia 2.
8. Capsule usually 4-carpellate, rarely 3- or 5-carpellate, septifragally dehiscent, 4-5 mm long; sepals more than 1 mm broad	D. baueri 1.
1. Leaves compound
9. Leaflets 9-13.5 mm long, usually more or less terete or concave or channelled above, often falcate, sometimes more or less flat or straight	D. stenozyga 9.
9. Leaflets less than 9 mm long, linear to obovate or cuneate, not terete
10. Capsule with glandular hairs, lacking appendages; leaflets usually more than 3.5 mm broad	D. humilis 4.
10. Capsule glabrous or sparsely pubescent, never with glandular hairs, appendages present as membranous vertical wings more than 2.5 mm broad; leaflets less than 3 mm broad
11. Lateral leaflets 8-16, linear, with raised glands on the lower surface only	D. subglandulifera 10.
11. Lateral leaflets 4-6, oblanceolate to obovate, with raised and flat glands on both surfaces	D. microzyga 7.

Author: Not yet available