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Dracophyllum sinclairii Cheeseman식물/들꽃-진달래과(Ericaceae) 2024. 11. 17. 08:47
국표에 없다.
Dracophyllum sinclairii, commonly called gumland grass tree, is a species of plant in the family Ericaceae that is endemic to New Zealand.
Dracophyllum sinclairii - Wikipedia
FLOWER COLOURS
White
DETAILED DESCRIPTION
Single–stemmed small tree 1.0–7.6 m tall. Bark on old branches dark grey to blackish brown, finely to deeply fissured, young stems reddish brown. Leaves dimorphic. Juvenile leaves spirally arranged along branches, spreading to recurved; lamina sheath, 9.0–30.0 × 5.0–12.7 mm, shoulders tapering to truncate and margin entire, occasionally ciliate in upper half; lamina subcoriaceous to coriaceous, 85.0–221.0 × 2.5–9.0 mm, linear–triangular, surfaces glabrous with a patch of scabrid hairs at base of adaxial surface; margins serrulate with 50–70 teeth per 10 mm. Adult leaves spreading to recurved, glaucous to light green (occasionally light brown); lamina sheath 3.5–7.3 × 3.3–6.6 mm, rounded to truncate and margin membranous with the top half ciliate; lamina 37–95 × 1–5 mm, linear–triangular, surfaces glabrous with a tuft of scabrid hairs at base on adaxial surface; slightly striated; margins serrulate with 60–80 teeth per 10 mm. Inflorescence a terminal spike; shorter than leaves, erect, drooping later, dense, 14.5–34.7 mm long, linear–oblong; inflorescence bract over-topping flowers, 7.0–8.0 × 0.7–1.0 mm, ovate to broadly ovate, adaxial surface glabrous with a patch of scabrid hairs at base; margins serrulate. Flowers 4–9, sessile. Flower bracts over-topping flowers, 6–20 × 3–4 mm, ovate, adaxial surfaces sericeous; abaxial surfaces glabrous to scabrid; margins minutely serrulate. Sepals 2.5–6.0 × 1.2–2.0 mm, ovate–lanceolate, longer than corolla tube; adaxial surfaces with the top half pubescent; margins ciliate. Corolla white; corolla tube 4.0–4.5 × 2.5–3.0 mm, narrowly–campanulate, widened at mouth; corolla lobes spreading horizontally to reflexed, 2.3–2.5 × 1.7–2.2 mm, triangular, shorter than corolla tube; apex inflexed, subacute; adaxial surface papillate. Stamens inserted on corolla tube in the upper third, filaments 0.5–1.0 mm long; anthers included, 0.8–1.0 mm long, rectangular, light yellow. Ovary 1.4–1.5 × 1.4-1.5 mm, obovate, apex round or oblong, and then 1.3–1.4 × 0.6–0.7 mm with apices mostly bidentate, sometimes irregularly toothed; style included, 1.3–1.5 mm long, glabrous; stigma five–lobed. Fruit 1.5–3.5 × 1.5–2.5 mm, obovoid, light brown; apex truncate, glabrous. Seeds 1.0–1.3 mm long, ovoid, yellowish brown, testa slightly reticulate.
Dracophyllum sinclairii • New Zealand Plant Conservation Network (nzpcn.org.nz)
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