Pittosporum trilobum L.W.Cayzer, Crisp & I.Telford

Species

Angiosperms > Apiales > Pittosporaceae > Pittosporum

Characteristics

Tree to 20 m high; bark smooth, light grey; new shoots rusty red with elongated, uniseriate hairs with an elongated terminal cell, hair bases persisting. Cotyledons 2, narrowly elliptic, falcate, to c. 15 mm long and 5 mm wide, apices rounded to acute, petiolate. Seedling leaves immediately alternate, apically trilobed, and angular obovate in underlying shape, petiolate. Adult leaves alternate; lamina angular-obovate, persisting irregular lobing,100–165 mm long, 30–65 mm wide, with c. 20 mm long drip tip, coriaceous, sparsely hairy, petiolate. Inflorescences are almost sessile terminal panicles golden brown hairy, unisexual, tiny flowers, peduncles to 10 mm long; pedicels to 7 mm long; bracts, bracteoles tiny, all golden brown hairy (both uniseriate and short base T hairs). Sepals to 3 mm long, free, golden brown hairy. Petals almost linear, 6–7 mm long, c. 1 mm wide, mostly free, cream, margins downturned. Male flowers: anthers prominently exserted, versatile, more than half the size of filaments, golden, sagittate, apices acute; filaments c. 4 mm long. Pistil with basal nectary, style glabrous, 2–4 mm long, longer than and almost as wide as the ovary, stigma barely differentiated; ovary appearing unilocular, densely hairy, placentas flat with few ovules. Female flowers with vestigial anthers less than 2 mm long, barely reaching the base of the style; filaments thick, white, c. 4 mm long. Pistil with bilobed stigma, stout style to 1.5 mm long; turgid ovary 3 mm long, thick walled, densely golden brown hairy, almost bilocular with placentas nearly meeting, ovules inserted in two rows in each loculus; basal nectary present. Fruits are  dehiscent capsules, ellipsoidal, 7–10 mm long, 10–12 mm diam., ornate with lighter ridging on dark brown, sparsely hairy. Seeds few per loculus, to 7 mm long, ridged, wrinkled angular, sticky.
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Growth form tree
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Foliage retention evergreen
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Mature height (meter) 20.0
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Environment

Grows in rainforest from coastal areas near Mission Beach fingering upwards along creeks and rivers to higher altitudes on the Atherton Tablelands, mainly on granite.
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Cultivation

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Distribution

Pittosporum trilobum world distribution map, present in Australia

Identifiers

LSID urn:lsid:ipni.org:names:1018119-1
WFO ID wfo-0000487961
COL ID 4JCF4
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Wikipedia (EN)
Wikipedia (FR)

Synonyms

Pittosporum trilobum