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Argophyllum sp. Boulders (B.Gray 6326)

Family

Argophyllaceae

Botanical Name

Argophyllum sp. Boulders (B.Gray 6326)

() : . Type: ?.

Stem

Flowers and fruits as a shrub about 1-3 m tall.

Leaves

Leaf blades about 10-15 x 4.5-8 cm, petioles about 1.5-3.0 cm. Underside of the leaf blades white from a dense covering of appressed hairs. Leaf blade margins with about 8-25 teeth on each side. Lateral veins about 6-12 on each side of the midrib.

Flowers

Flowers about 4 mm diam. Sepals about 1 mm long with white simple hairs on the outer surface. Petals about 2 mm long with a ring of yellow tipped hairs or appendages (about 1 mm long) above the base. Staminal filaments about 1 mm long. Disk yellow to orange, margin lobed. Ovules numerous, more than 20.

Fruit

Fruits obconical, about 3 x 5 mm, calyx lobes persistent on the upper half. Seeds numerous, less than 0.5 mm long. Testa surface textured, marked by a hexagonal network of reticulations.

Seedlings

Cotyledons elliptic, about 1.5-3 x 1-2 mm. First leaf elliptic to orbicular, margin entire. Second leaf ovate to orbicular, base attenuate, margin sparsely toothed. At the tenth leaf stage: leaf blade elliptic to ovate, about 7-11 x 4-7 cm, apex apiculate, acute to acuminate, base cuneate to attenuate, margin dentate or serrate. Underside of the leaf blade densely clothed in white prostrate hairs. Petiole about 10-20 mm long.

Distribution and Ecology

Endemic to NEQ(?), known only from collections made in the Babinda area. Altitudinal range small, from 40-120 m. Grows as an understory plant on exposed, steep banks of streams and slightly disturbed areas.

NEQ

X

Shrub (woody or herbaceous, 1-6 m tall)

X

RFK Code

3092