Solanum species of eastern and northern Australia

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A. R. Bean

Solanum celatum

Habit. Erect, rhizomatous perennial shrub, 1–2.5 m high.

Branchlets. Branchlets white or grey. Branchlet prickles absent or present, 0–5 per decimetre, straight, acicular, 6–10 mm long, glabrous. Branchlet hairs stellate. Branchlet stellae very dense, 0.25–0.35 mm diameter. Branchlet stellae lateral rays 6–8, porrect. Branchlet stellae central ray absent or present, 0–0.5 times as long as laterals, not gland-tipped. Branchlet simple hairs absent.

Leaves. Leaves lanceolate or elliptical, entire. Leaves 4.6–12.5 cm long, 1.5–3.5 cm wide, 2.6–3.6 times longer than broad. Leaf apex acute, base cuneate. Leaf oblique part 0–5 mm long, obliqueness index 0–5 percent. Petioles 0.8–2.4 cm long, 12–20% length of lamina, prickles absent or present.

Upper leaf surface. Upper leaf surface grey-green. Upper leaf surface prickles absent or present on midvein only. Upper leaf surface stellate hairs distributed throughout, protostellae absent, hair density moderate density to dense. Upper leaf surface stellae 0.1–0.2 mm apart, 0.15–0.25 mm across. Upper leaf surface stellae lateral rays 4–8. Upper leaf surface stellae central ray 0.5–1 times as long as laterals, not gland-tipped. Upper leaf surface simple hairs absent. Upper leaf surface Type 2 hairs absent.

Lower leaf surface. Lower leaf surface yellowish. Lower leaf surface prickles absent or present on midvein only. Lower leaf surface stellate hair density very dense. Lower leaf surface stellae 0.2–0.4 mm diameter, stalks 0.3–0.4 mm long. Lower leaf surface stellae lateral rays 6–8, porrect. Lower leaf surface stellae central ray 0.5–1 times as long as laterals, not gland-tipped. Lower leaf surface simple hairs absent. Lower leaf surface Type 2 hairs absent.

Inflorescence. Inflorescence supra-axillary, cymose (pseudo-racemose). Inflorescence rachis prickles absent. Inflorescence 4–7-flowered, with one bisexual flower, the rest male or some bisexual and some male flowers. Flowers 5-merous. Pedicels at anthesis 15–20 mm long, prickles absent. Calyx tube at anthesis 3–4 mm long. Calyx lobes at anthesis deltate or attenuate, 2.5–5 mm long. Calyx prickles at anthesis absent or present, 0–5 per flower. Calyx stellae dense, transparent or purple, 0.25–0.4 mm across, lateral rays 6–8. Calyx stellae central ray 0.5–1 times as long as laterals, not gland-tipped. Calyx simple hairs absent, Type 2 hairs absent. Corolla purple, 12–16 mm long, rotate. Anthers 5–6.5 mm long. Ovary with Type 2 hairs only or with stellate and Type 2 hairs. Functional style 8–9 mm long, protruding between anthers, with Type 2 hairs only or with stellate and Type 2 hairs. Functional style stellae lateral rays 9–11.

Fruits. Fruiting calyx lobes less than half length of mature fruit, prickles absent or present. Mature fruits 1–4 per inflorescence, globular, 13–16 mm diameter, yellowish-green or green, often streaked, 2-locular. Mature fruits interior moist but not juicy, pericarp 0.8–1 mm thick. Pedicels at fruiting stage 15–23 mm long. Seeds white or pale yellow, 2.4–2.8 mm long.

Distribution and habitat. New South Wales. NSW: Central Coast, South Coast. Wet eucalypt forest with rainforest understorey, or rainforest margins.

Miscellaneous. Subg. Leptostemonum. Data source: specimens.


Cite this publication as: ‘Bean, A.R. 2012 onwards. Solanum species of eastern and northern Australia. Version: 29th June 2013. http://delta-intkey.com’.

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