Solanum hillebrandii H.St.John
  • "H.St.John, Pacific Sci. 23: 352. 1969., 1969."

Cite taxon page as 'WFO (2019): Solanum hillebrandii H.St.John. Published on the Internet; Accessed on: 10 Dec 2019'

General Information

Shrub, the internodes to 4.3 cm long. Stems densely pubescent with yellow-ferruginous, sessile or stipitate porrect stellae, stipes of various lengths to 0.13 mm, the stellae soon deciduous, 0.4–0.6 mm broad, with 5–8 rays, the midpoint flexed at the base ±90°, shorter than to ±equal to than the rays; bark reddish brown, a transparent sloughing layer absent on young stems; stems unarmed or with scattered prickles, the prickles to 5.4 × 4.2 mm, broad based, narrowly triangular, straight, red-orange.
Sympodia difoliate, geminate.
Leaves simple, the blades of major leaves 5.2–17.8 × 2.5–11.2 cm, ca. 1.5–2.4 times as long as wide, ovate to elliptic, chartaceous, the minor leaves ca. 2/3 as large as the major leaves, both major and minor leaves moderately pubescent above with sessile and short stipitate porrect stellae and minute glandular hairs when young, glabrous when mature, the stellae 0.3–0.6 mm in diameter, with 5–8 rays, the stipes to 0.06 mm long, the midpoint of the stellae flexed at the base ±90°, shorter than to ±equal to the rays, the glandular hairs ca. 0.5 mm long, densely pubescent below with sessile and short stipitate porrect stellae and minute glandular hairs when young, glabrous to densely pubescent when mature, the stellae 0.3–0.5 mm in diameter, with 5–9 rays, the stipes to 0.04 long, the midpoint of the stellae erect to flexed at the base ±90°, shorter than the rays, the glandular hairs ca. 0.4 mm long; blade unarmed or with a few scattered, straight prickles on the primary or primary and secondary veins abaxially and adaxially, with 7–11 veins on either side of the midvein, the midvein raised abaxially, distinct adaxially, the lateral veins weakly brochidodromous, raised abaxially, distinct adaxially; blade base rounded to cunate, aequilateral or oblique; margin entire, sinuate, or lobed, the lobe apices acute; apex acute; petiole 1.0–5.5 cm long, 0.7–2.3 mm in diameter, channeled above, densely pubescent when young, the hairs becoming sparse with age, unarmed or with scattered straight prickles.
Inflorescence to 9.8 cm in flower, to 9.1 cm in fruit, appearing lateral, extra-axillary, emerging from an upper internodal position, branching to 5 times, with 8–120 flowers, all apparently fertile or potentially so, the axes densely pubescent becoming glabrous, the hairs sessile and stipitate porrect-stellate and minute glandular, unarmed or with scattered straight, broad-based prickles; peduncle in flower 0.7–2.3 cm long, 0.4–0.9 mm in diameter, the branches to 7.0 cm long, 0.5–1.1 mm in diameter, in fruit 1.5–2.1 cm long, 2.0–3.9 mm in diameter, the branches to 4.4 cm long, 0.8–2.5 mm in diameter; pedicels 1.1–1.4 cm long, 0.4–0.7 mm in diameter at the base, 1.3–2.0 mm in diameter below the calyx, arching, gradually increasing in diameter in the distal 1/4–1/3, glabrous to densely pubescent, the bases well spaced to 5.0 mm apart in flower, 1.6–2.5 cm long, 0.7–1.0 mm in diameter at the base, 2.2–2.8 mm in diameter below the calyx, gradually increasing, gradually increasing in diameter in the distal 1/3–1/2, glabrous, the bases well spaced to 7.0 mm apart, in fruit, rigid, in two rows, articulate at the base. Buds globose, the calyx glabrous or densely stellate-pubescent, the corolla densely stellate-pubescent, the surface of the corolla of the mature bud ridged.
Flowers heterostylous, 5-merous. Calyx 1.7–2.7 mm long, unarmed, appearing nearly truncate with apiculate lobe tips, the tube 1.4–2.4 mm long, the lobe tips 0.4–0.5 mm long, the intersepalar tissue translucent when dry; splitting in the sinuses at anthesis and then the lobes dentate, 1.1–1.7 × 1.6–2.3 mm at anthesis, glabrous to densely pubescent abaxially, glabrous adaxially, the calyx lobes in fruit 3.4–3.6 × 2.2–2.6 mm, glabrous, appressed or reflexed. Corolla 1.2–2.0 cm in diameter, stellate with well developed, glabrous interpetalar tissue, the lobes 3.1–3.8 × 4.0–5.4 mm, deltoid, the midrib 6.0–6.6 × 2.4–3.2 mm, lanceolate, moderately to densely pubescent abaxially, glabrous at the base scattered pubescent towards the apex adaxially, apparently spread wide at anthesis. Stamens adnate to the corolla, the free portion of the filament 0.5–1.3 mm long; anthers 2.2–2.9 × 1.2–1.5 mm, oblong, somewhat incurved, not attenuate, spreading, longitudinally dehiscent, the slit extending 1/2–2/3 the length of the anther. Ovary ca. 1.3 mm, globose, glabrous; short styles 1.2–1.7 mm, long styles ca. 3.8 mm long, both long and short styles 0.2–0.3 mm in diameter, the short styles shorter than the stamens not emerging, the long styles longer than the stamens emerging between the anther apices, filiform, straight, with a few sessile porrect-stellate hairs restricted to the basal ca. 1/3 portion; stigma 0.3–0.4 mm in diameter, capitate.
Fruit a berry, 0.9–1.9 cm in diameter, globose, probably orange to red when mature, glabrous; exocarp thin, glossy; apparently juicy.
Seeds many per fruit, 2.8–3.0 × 3.2–3.8 mm, flattened-orbicular and notched at the point of attachment to flattened-reniform, yellow-tan when dry, the surface reticulate.

  • Provided by: [B]
    • Distribution

      Solanum hillebrandii likely grew in dry habitats on the islands of Hawaii, Lanai and Maui, but the exact conditions and elevation are unknown due to the minimal label information of the collections.

    • Provided by: [B]
      •   Bibliography

        • 1 H.St.John, “Pacific Sci. 23: 352. 1969.”, 1969.

         Information From
        PBI Solanum Project. 2017. Solanaceae Source. Jan.31st, 2015.
        • A All Rights Reserved
        • B
        • C CC0 1.0 Universal (CC0 1.0).
        World Flora Online consortium
        World Flora Online Data. 2018.
        • D CC0 1.0 Universal (CC0 1.0).