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Viola oahuensis

C.N.Forbes (1909)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Malpighiales Family: Violaceae Genus: Viola

Description

Key Characters:

Growth Form: Erect, usually unbranched subshrubs 0.6–4 dm tall, glabrous.

Stems:

Roots: Taprooted.

Leaves: Leaves simple. Alternate, somewhat clustered toward the ends of the branches, chartaceous. Blades elliptic–ovate to elliptic, (2–)3–12 cm long, (1.5–)2.5–5.8 cm wide. Apex acuminate. Base cuneate. Surfaces glabrous. Margins callose–serrate, the teeth incurved; margins somewhat fimbriate, the teeth ca. 0.3–1 mm long, not strongly persistent. Petioles 0.5–1(–1.5) cm long. Stipules thin, narrowly deltate, 10–15(–25) mm long, 3.5–6 mm wide.

Flowers: Flowers axillary, 1(2) per peduncle, apparently all chasmogamous. Peduncles 10–15 mm long. Flowers bisexual (perfect); pedicels (17–)25–60 mm long, bracteoles above middle. Calyx of 5 sepals, narrowly lanceolate, glabrous, but minutely whitish punctate, upper one 5–8 mm long, lateral ones 6–10 mm long, lower ones 5–9.3 mm long, all prolonged at base. Corolla zygomorphic, corolla of 5 petals, pale yellow, upper ones 8–13 mm long, lateral ones 10–13.5 mm long, lower one 12–16 mm long. Stamens 5, 3–4 mm long, connective of lower ones prolonged into a subrectangular structure 1–1.3 mm long; filaments short; anthers dithecal, opening by longitudinal slits. Ovary superior, 3-carpellate, 1-celled; ovules numerous per placenta, placentation parietal; style 1.

Fruit: Capsules 9–16 mm long. Seeds numerous; pale brown; obovoid; 1.6–2.1 mm long; ca. 1.2–1.3 mm in diameter; with fleshy; oily endosperm.

Ploidy:

Habitat: Cloudswept summits in wet forest.

Elevation Range: 60–790 m.

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

O'ahu Endemic

Dispersal Agents


Pollinators

Notes

  • 640-790 m
  • Description digitized from the Manual of the Flowering Plants of Hawaii

Bibliography

Name Published In: Occas. Pap. Bernice Pauahi Bishop Mus. 4: 216 (1909)

Other References

Wagner et al. 1990:1336 (O)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Undergrowth in rain forest Preserved_Specimen Bryan Jr., E.H. 865 Oahu BISH 1934-11-20
2 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Open grassy ridge Preserved_Specimen St.John, H. 10156 Oahu BISH 1930-01-19
3 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details In cloud zone, in moist turf Preserved_Specimen St.John, H. 21515 Oahu BISH 1946-02-24
4 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Common on wet exposed wooded ridge. Preserved_Specimen Hosaka, E.Y. 1889 Oahu BISH 1937-05-30
5 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details On wooded slope Preserved_Specimen Hosaka, E.Y. 1917 Oahu BISH 1937-05-31
6 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Wet place Preserved_Specimen Hosaka, E.Y. 712 Oahu BISH 1932-09-18
7 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Exposed, turfy ridge Preserved_Specimen Fosberg, F.R. 9737 Oahu BISH 1933-08-06
8 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Cloud forest vegetation, sheltered slope Preserved_Specimen Warshauer, F.R. 584 Oahu BISH 1976-10-30
9 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Wet bare summit ridges Preserved_Specimen Fosberg, F.R. 8780 Oahu BISH 1932-10-16
10 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Rain forest Preserved_Specimen MacDaniels, L.H. 11 Oahu BISH 1926-10-06
11 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Rain forest Preserved_Specimen Morley, H. Oahu BISH 1933-12-10
12 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Wet brushy ridge in low brush Preserved_Specimen Fosberg, F.R. 10805 Oahu BISH 1935-02-10
13 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Small open bog Preserved_Specimen Fosberg, F.R. 13974 Oahu BISH 1937-05-31
14 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Wet place Preserved_Specimen Hosaka, E.Y. 1157 Oahu BISH 1933-08-06
15 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Around perimeter of bog & near ridge crest in area w/Pritchardia martii, Chamaesyce rockii var. rockii, Psychotria fauriei, Pittosporum confertiflorum, Dubautia laxa, ohia, Bidens, Scaevola glabra, Labordia, Myrsine juddii. Preserved_Specimen Perlman, S. 5191 Oahu BISH 1987-02-08
16 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Rain forest Preserved_Specimen Hartt, C.E. Oahu BISH 1937-10-31
17 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Wet place, exposed Preserved_Specimen Hosaka, E.Y. 1119 Oahu BISH 1933-07-09
18 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Always growing on the heavily wind-blown windward face & slightly off crest. Assoc. with low, wind-stunted vegetation. Preserved_Specimen Obata, J.K. 85600 Oahu BISH 1985-08-11
19 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details In scrub Preserved_Specimen St.John, H. 10577 Oahu BISH 1930-09-28
20 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details In Metrosideros-Dicranopteris linearis lowland wet shrubland with Scaevola, Psychotria, Alyxia, Melicope, Broussaisia, Cibotium, Machaerina, Bidens, Coprosma, Clidemia. Preserved_Specimen Perlman, S. 6586 Oahu BISH 1987-10-12
21 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 17022 Oahu BISH 1914-10-01
22 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Shaw, G.W. 12503 Oahu BISH 1912-12-01
23 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Shaw, G.W. 17026 Oahu BISH 1912-10-01
24 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 8828 Oahu BISH 1911-08-01
25 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Obata, J.K. 85529 Oahu BISH 1985-03-27
26 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 71019 Oahu BISH 1908-12-03
27 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 2206 Oahu BISH 1915-08-17
28 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 17020 Oahu BISH 1908-07-01
29 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 359 Oahu BISH 1908-09-14
30 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 8827 Oahu BISH 1911-08-01
31 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 17022 Oahu BISH 1914-10-31
32 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 359 Oahu BISH 1908-09-14
33 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Harris, J.A. 242162 Oahu BISH 1924-08-31
34 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. Oahu BISH 1909-05-08
35 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. Oahu BISH 1909-05-08
36 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. Oahu BISH 1916-06-11
37 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Degener, O. 12301 Oahu BISH 1939-03-23
38 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 359 Oahu BISH 1908-09-14
39 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 359 Oahu BISH 1908-09-14
40 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 17021 Oahu BISH 1908-08-23
41 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Skottsberg, C.J.F. 1827 Oahu BISH 1926-09-17
42 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 359 Oahu BISH 1908-09-14
43 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 8828 Oahu BISH 1911-08-01
44 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Lyon, H.L. Oahu BISH 1926-09-17
45 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 2206 Oahu BISH 1915-08-17
46 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 10371 Oahu BISH 1908-12-24
47 Viola oahuensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. Oahu BISH 1914-10-17
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