Click on images
Scale bar 10mm. Copyright CSIRO
Fruit, several views and cross section. Copyright W. T. Cooper
10th leaf stage. Copyright CSIRO
Leaves and Flowers. Copyright A. Ford & F. Goulter
Cotyledon stage, epigeal germination. Copyright CSIRO
Leaves and fruits. Copyright CSIRO
Flowers and buds. Copyright CSIRO
Helicia blakei Foreman
Foreman, D.B. (1983) Brunonia 6(1): 66. Type: Boonjee, Near Malanda, Queensland, S.T. Blake 15226, 29.vii.1943 (holotypus BRI, isotypus MEL)..
Blake's Silky Oak; Oak, Blake's Silky
Seldom exceeding 30 cm dbh. Oak grain in the wood and a corresponding pattern in the blaze.
Fruits ovoid, about 8-17 x 5-15 mm. Style 11-14 mm long, persistent at the apex of the fruit. Seed about 6-14 x 4-10 mm. Cotyledons thick and fleshy, about 10 x 8 mm. Radicle straight, about 2 mm long.
Cotyledons fleshy, about 6-12 x 3-8 mm, apex acute sometimes +/- lobed, base sagittate, petiole very short. First pair of leaves elliptic, margin serrate. Stem and terminal bud clothed in rusty brown hairs. At the tenth leaf stage: leaf blade elliptic to obovate, apex acuminate to acute, base attenuate, margin with 4-11 coarse teeth on each side. Both the upper and lower surfaces clothed in rusty brown, medifixed hairs with arms of radically different lengths. Stems and petioles clothed in similar hairs. Lateral veins usually forming loops inside the blade margin.
Distribution and Ecology
Endemic to NEQ, known only from a few collections from Boonjee, the Johnstone River Valley and perhaps Thornton Peak. Altitudinal range from 160-1250 m. Grows as an understory tree mainly in well developed upland rain forest.
Shrub (woody or herbaceous, 1-6 m tall)