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Eugenia koolauensis

O.Deg. (1932)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Myrtales Family: Myrtaceae Genus: Eugenia

nioi, nīoi [nioi]

Description

Key Characters:

Growth Form: Small trees or shrubs 2–7 m tall.

Stems: Branches densely brown short–pilose, the hairs somewhat appressed.

Roots:

Leaves: Leaves simple. Opposite. Blades obovate to elliptic or suborbicular, concave, 2–5 cm long, 1–3.3 cm wide. Apex obtuse, apiculate, or ± retuse. Base cuneate. Upper surfaces densely brown puberulent when young, older leaves glossy, glabrous to brown puberulent near veins; lower surfaces minutely pitted or pustulate, densely brown puberulent, rarely only moderately so; blades coriaceous. Margins strongly revolute. 5–7 pairs of principal lateral veins, 4–10 mm apart, submarginal vein irregular. Petioles 1–4 mm long, brown short–pilose. Stipules vestigial or absent.

Flowers: Flowers 1–2 in the leaf axils, pedicels 1–8 mm long, bracts ca. 1–2 mm long, brown puberulent, persistent. Flowers bisexual (perfect), actinomorphic. hypanthium obconical, 2–3 mm long, brown short–pilose. Calyx of 4 sepals, unequal, one pair 3–4 mm long, the other pair 2–3 mm long, adnate to the annular nectary disk within the tube, appressed puberulent toward base. Corolla of 4 petals, white, ovate, obovate, or elliptic, 4–8 mm long, inserted on margin of nectary disk, sparsely puberulent, persistent. Stamens ca. 150, inserted on nectary disk; filaments white, 0.5–5 mm long. Ovary inferior; ovule placentation axile; style short.

Fruit: Berries yellow to red; ovoid; somewhat asymmetrical; 0.8–2 cm long; pericarp fleshy; ca. 1–2 mm thick. Seeds 1(2); globose; 8–9 mm in diameter; coherent to pericarp; distinct from cotyledons; these connate to distinct.

Ploidy:

Habitat: Formerly known from dry gulches and slopes; northern Ko'olau Mountains; O'ahu; from Pupukea to Kaipapa'u; and 2 collections from Mauna Loa; Moloka'i.

Elevation Range: 100–300 m.

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

O'ahu Endemic
Molokai Endemic

Dispersal Agents


Pollinators

Bibliography

Name Published In: Fl. Hawaiiensis 273: s.p. (1932)

Other References

Wagner et al. 1990:960 (O, Mo); PEPP 2025/Rock 17144B BISH (Mo†, 1920)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Judd, C.S. Oahu BISH 1933-03-01
2 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 17144 Molokai BISH 1920-02-01
3 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 17144 Molokai BISH 1918-06-01
4 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Brown, F.B.H. 1274 Oahu BISH 1925-11-02
5 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Snow, N. 10035 Oahu BISH 2008-10-08
6 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Native forest Preserved_Specimen Shrub; 7 m x 8 cm; bark brown; leaves concave, above olive-green, below pale green; petals white St.John, H. 23683 Oahu BISH 1949-04-16
7 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details On top of small cliff. Preserved_Specimen Shrub (?). Judd, C.S. 54 Oahu BISH 1926-09-08
8 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Brown, F.B.H. 1274 Oahu BISH 1925-11-02
9 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 17144 Molokai BISH 1918-06-01
10 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 17144 Molokai BISH 1920-02-01
11 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 17144 Molokai BISH 1918-04-01
12 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Lower forest Preserved_Specimen Twiggy 12-ft. tree Degener, O. 20771 Oahu BISH 1950-07-27
13 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details On very steep north-facing slope. Preserved_Specimen Two trees in native forest 3.5 m x 8 cm; bark greyish - or yellowish-brown, black spotted; flowers white; fruit orange-yellow. Wilson, K.A. 163 Oahu BISH 1952-11-18
14 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Moderately dry woods near top of ridge Preserved_Specimen Many-twigged; about 10 ft. high Degener, O. 4169 Oahu BISH 1931-10-11
15 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Moist gully w/ Psidium cattleianum association. Grove of 4 trees. Preserved_Specimen Small tree 15' ht. Nagata, K.M. 3745 Oahu BISH 1987-12-05
16 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Moderately dry woods near top of ridge Preserved_Specimen Many-twigged; about 10 ft. high Degener, O. 4169 Oahu BISH 1931-10-11
17 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Very steep N facing slope. Preserved_Specimen Two shrubs in native forest 7 m x 8 cm; bark brown, leaves concave. Petals white. Wilson, K.A. 142 Oahu BISH 1952-09-05
18 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Sunny and sporadically windy site in Psidium zone, summer-dry habitat. Preserved_Specimen Stature 4m, blade surface flat rather than convex, many dead twigs in upper crown but sprouting heavily on branches beneath, striking vegetative resemblance to reinwardtiana except for pubescent underleaf, noticeably different gestalt from the occurrences represented by Nagata 3745. Takeuchi, W.N. 3745 Oahu BISH 1988-01-23
19 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Dry gulch side. Preserved_Specimen Stiff, small tree, hgt. 2 m. Leaves opposite, curled under, tomentose with red hairs; fruit none, flower none. Judd, C.S. 20 Oahu BISH 1925-09-28
20 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details On very steep north-facing slope. Preserved_Specimen Two trees in native forest 3.5 m x 8 cm; bark greyish - or yellowish-brown, black spotted; flowers white; fruit orange-yellow. Wilson, K.A. 163 Oahu BISH 1952-11-18
21 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details On very steep north-facing slope. Preserved_Specimen Two trees in native forest 3.5 m x 8 cm; bark greyish - or yellowish-brown, black spotted; flowers white; fruit orange-yellow. Wilson, K.A. 163 Oahu BISH 1952-11-18
22 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Dry gulch side Preserved_Specimen Stiff small tree; height 2 m. Judd, C.S. 20 Oahu BISH 1925-09-28
23 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Moderatley dry woods near top of ridge Preserved_Specimen Many-twigged; about 10 ft. high Degener, O. 4169 Oahu BISH 1931-10-11
24 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details On very steep N facing slope. Preserved_Specimen Two trees in native forest 3.5 m x 8 cm; bark greyish - or yellowish-brown, black spotted; flowers white; fruit orange-yellow. Wilson, K.A. 163 Oahu BISH 1952-11-18
25 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Moist gully w/ Psidium cattleianum association. Grove of 4 trees. Preserved_Specimen Small tree 15' ht. Nagata, K.M. 3745 Oahu BISH 1987-12-05
26 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details On very steep N facing slope. Preserved_Specimen Two trees in native forest 3.5 m x 8 cm; bark greyish - or yellowish-brown, black spotted; flowers white; fruit orange-yellow. Wilson, K.A. 163 Oahu BISH 1952-11-18
27 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details On very steep N facing slope. Preserved_Specimen Two trees in native forest 3.5 m x 8 cm; bark greyish - or yellowish-brown, black spotted; flowers white; fruit orange-yellow. Wilson, K.A. 163 Oahu BISH 1952-11-18
28 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Growing in remnant mesic forest with Psydrax odorata, Acacia koa, Hibiscus arnottianus, Dicranopteris linearis, Cibotium chamissoi, Planchonella sandwicensis, Notelaea sandwicensis, and Rockia sandwicensis. Also growing with Psidium cattleianum, Schinus terebinthifolius, Lantana camara, Christella spp., and other shitty weeds. Preserved_Specimen Small trees with leaves revolute, veiny, and glabrous. Fruit orange and globose. Thomas, M.K. 559 Oahu BISH
29 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Lower edge of decadent dry forest among lantana. Preserved_Specimen Degener, O. 7297 Oahu BISH 1931-11-22
30 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Dry Ridge; associated sp. include Kolea, Olopua, Lehua, Preserved_Specimen Tree 5 m height; flowers white, fruit ellipsoidal-yellow; flowers white; fruit orange-yellow Judd, C.S. 71 Oahu BISH 1928-03-02
31 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Moderately dry woods near top of ridge Preserved_Specimen Many-twigged; about 10 ft. high Degener, O. 4169 Oahu BISH 1931-10-11
32 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Dry Ridge; associated sp. include Kolea, Olopua, Lehua, Preserved_Specimen Tree 5 m height; flowers white, fruit ellipsoidal-yellow; flowers white; fruit orange-yellow Judd, C.S. 71 Oahu BISH 1928-03-02
33 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 8 Molokai BISH 1912-06-01
34 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Single tree. Degener, O. 11299 Oahu BISH 1935-07-07
35 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Stiff small tree; height 2 m; leaves opposite, curled under, tomentose with red hairs, fruit none, flower none St.John, H. 20 Oahu BISH 1925-09-28
36 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Snow, N. 10036 Oahu BISH 2008-10-08
37 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 8 Molokai BISH 1912-06-01
38 Eugenia koolauensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 8 Molokai BISH 1912-06-01
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