Citation: Meissner, Pl. vasc. gen. 227, t. 316 (1841).

Derivation: After Gustav Muhlenbeck, 1798-1845, an Alsatian botanist.

Synonymy: Not Applicable

Common name: Lignums.

Description:
Shrubs, erect or climbing; leaves linear to orbicular, sometimes caducous.

Flowers small, green or yellowish, arranged in whorl-like bracteate clusters, mostly dioecious; segments or lobes of perianth 5; stamens usually 8, represented in the female flowers by barren filaments or minute anthers present; styles 3, more or less fringed.

Nut trigonous, enclosed in the enlarged persistent membranous or fleshy perianth.

Distribution:  About 20 species in South America, New Zealand and Australia.

Biology: No text

Key to Species:

1. Leaves rather large and broadly lanceolate to orbicular
2. Leaves cordate, margins crisped or serrate	M. adpressa 1.
2. Leaves hastate, margins entire, sometimes undulate	M. gunnii 5.
1. Leaves narrow (linear to lanceolate) and usually small, often caducous
3. Leaves absent or a few on older branches; nuts trigonous
4. Flowers in distant clusters along branches; female perianth fleshy; fruits sessile	M. coccoloboides 2.
4. Flowers in distinct racemes or panicles; female perianth herbaceous; fruits shortly pedicellate	M. cunninghamii 3.
3. Leaves usually numerous, but often decreasing in size towards the apex of young branches; nuts trigonous to subglobular
5. Nuts subglobular; branches ascending, not spine-tipped; leaves mostly 1 at each node	M. diclina 4.
5. Nuts quadrangular; divaricately branched, the branches more or less spine-tipped; leaves fascicled	M. horrida 6.

Author: Not yet available