Misodendraceae

Genera Included: Monogeneric - Misodendrum.

Habit: Aerial "shrubs"

Parasitism: All hemiparasites on the southern beech (Notofagus)

Roots: Haustoria form a cup-like placental region in zone of contact with the host

Stem: twigs stout, the apex aborting at the end of each growing season; the next season's growth continuing from lateral buds.

Leaves: Alternate, simple, entire (?), sometimes reduced to scales.

Inflorescence: Catkin-like, in compound racemes and spikes.

Plant Sex: Dioecious

Flowers: Unisexual; pistillate flowers monochamydous, apparently hypogynous; staminate flowers lacking a perianth entirely.
Calyx: Tepals 3 in pistillate flowers, adnate to the ovary but free from one another except at the base.
Corolla: Absent
Nectary: Present in staminate flower as a small, lobed disk.
Androecium: 2-3 stamens; anthers bisporangiate, monothecal, opening by terminal slits.
Staminodia: Present, alternating with perianth members in pistillate flowers; accrescent.
Pollen: 4-12 colporate.
Gynoecium: Compound, composed of 3 carpels, unilocular, with a short, stout style capped by a 3-lobed stigma.
Ovule: Three ovules in the locule, pendulous from the top of a free-central placenta; ovule not differentiated into nucellus and integuments.
Embryo, etc.: Embryology like some members of Olacaceae; endosperm development cellular.

Fruit: An achene or small nut, crowned by the accrescent, feathery staminodes which aid in wind dispersal.

Seed: Solitary, without a testa; endosperm oily, chlorophyllous (evolved independently from Viscaceae? Yes according to Kuijt 1968); embryo straight.

Chromosomes:

Link to Family Description in Delta


SIUC / College of Science / Parasitic Plant Connection / Misodendraceae / Description
URL: http://www.parasiticplants.siu.edu/Misodendraceae/description.html
Last updated: 15-May-06 / dln