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Cyanea macrostegia

Hillebr. (1888)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Asterales Family: Campanulaceae Genus: Cyanea

hāhā [haha]

Description

Key Characters:

Growth Form: Palm-like trees 1–7 m tall.

Stems: Stems unbranched.

Roots:

Leaves: Leaves simple. Alternate. Blades oblanceolate to oblong or elliptic, 20–80 cm long, 6.5–20 cm wide. Apex acute to obtuse, rarely acuminate. Base cuneate, obtuse, or rounded. Upper surfaces glabrous or sparsely pubescent; lower surfaces pubescent. Margins callose–denticulate, rarely erose-dentate. Petioles 3–17 cm long, often muricate. Stipules absent.

Flowers: Flowers in inflorescences 5–15–flowered, clustered among the leaves, peduncles 10–80 mm long, pedicels 10–25 mm long; hypanthium obconical, 10–20 mm long, 5–10 mm wide. Flowers bisexual (perfect). Calyx 5-lobed, lobes oblong, narrowly oblong, or ovate, 6–55 mm long, 4–10 mm wide, distinct or rarely connate, much shorter to somewhat longer than hypanthium, rarely up to as long as the corolla, apex obtuse, truncate, or emarginate, rarely acute, often with an apiculation, tube adnate to ovary. Corolla zygomorphic, blackish purple externally, white or pale lilac within, 60–80 mm long, 6–11 mm wide, densely pubescent or rarely subglabrous externally, glabrous within, the tube suberect, dorsally cleft to about the middle, the lobes spreading, 1⁄2–3/4 as long as the tube. Stamens 5, alternate with corolla lobes, connate; staminal column glabrous or sparsely pubescent; anthers glabrous, the lower 2 with apical tufts of white hairs, dithecal, opening by longitudinal slits, coherent but separating after anthesis or connate and forming a tube into which pollen is shed; filaments distinct or connate above, attached to the epigynous nectary disk or to base of corolla, rarely adnate to corolla tube. Ovary inferior, 2-celled; ovule placentation axile; stigma 2-lobed, wet or dry, appressed and nonreceptive as the style grows through the anther tube, pushing out the pollen, after which the stigmas spread apart and become receptive.

Fruit: Berries yellowish orange; obovoid or ellipsoid; 15–30 mm long; 12–25 mm wide; crowned by the persistent calyx lobes. Seeds numerous; small; brown to black; smooth; shiny; 0.2–0.5(–2) mm long; with a straight; short to spatulate dicotyledonous embryo embedded in oily endosperm.

Ploidy:

Habitat: Occurring in wet forest.

Elevation Range: 760–1,970 m.

Historical Distribution

Accepted Subtaxa (in Hawai'i) (1)

Cyanea macrostegia var. viscosa Rock

Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

Maui Endemic

Dispersal Agents


Pollinators

Bibliography

Name Published In: Fl. Hawaiian Isl.: 263 (1888)

Other References

Wagner et al. 1990:456 (EM, WM [as C. macrostegia subsp. macrostegia]); Wagner, Herbst & Lorence 2005— (return to C. macrostegia when C. macrostegia subsp. gibsonii elevated to C. gibsonii)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Recorded By Record Number Island Source Date
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