Cunninghamia konishii Hayata
Shrub, or tree: evergreen; erect; 50 m
maximum height; monoecious. Trunk: 3 m maximum diameter. Bark: grey,
red, brown, or black; smooth – scaly, peeling off in strands, or furrowed. Crown:
rather open; columnar to narrowly conical (pyramidal). Branches:
horizontal, or drooping. Ultimate branchlets:
40–300 mm long; arranged 3-dimensionally; roundish in cross-section.
Leaves: only adult leaves on adult plants;
needle-like (linear: flattened in cross-section). Needle leaves: 8–35 mm
long; 1.5–5 mm wide; arranged spirally; arranged in 2 rows, not exact in one
plane; spreading; bright, or dark green; tip acute; with two white stripes;
with 7–15 stomata rows.
Male cones: at close quarters; 12–18
male cone scales; oblong; yellow or bright brown. Male cone scales:
arranged spirally; 2–4 pollen sacs per male cone scale.
Female cones: 18–30 mm long; 12–35 mm
wide; 32–65 cone scales; depressed-globose, 2-lobed, globose, or ovoid;
cone-like (open after maturity); woody; not disintegrating after maturity; bright;
young cones greenish. Female cone scales: arranged spirally; inserted on
different levels in mature cones; without several small additional cone scales
on the female cone; tip acute; umbo absent. Columella: absent.
Seeds: 2–8 mm long; 1–5 mm wide; 60–80 seeds
per cone; bright brown – black; 2–4 seeds per female cone scale; flattened. Seed
wings: 0.5–2 mm wide; 2 (almost) equal wings.
Supplement: maturity in the first
year; 2 cotyledones; 22 chromosomes (2n). Cultivation:
cultivated in