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Wikstroemia villosa

Hillebr. (1888)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Malvales Family: Thymelaeaceae Genus: Wikstroemia

‘ākia [akia], kauhi

Description

Key Characters:

Growth Form: Tall shrubs or trees 3–4.5 m tall.

Stems: Young branches yellow silky pubescent, becoming glabrate.

Roots:

Leaves: Leaves simple. Opposite. Blades chartaceous, broadly elliptic to elliptic–ovate, (6.3–)8–13(–15) cm long, (1.8–)3–4(–6) cm wide. Apex acute to acuminate. Base slightly tapering to acute. Upper surfaces dark green; lower surfaces brighter, tomentose to villous, sometimes becoming glabrate. Margins entire. Pinnately veined. Petioles 6–18 mm long, pubescent. Stipules absent.

Flowers: Flowers in peduncles 2–4 mm long, hirsute, rachis 5–25 mm long, hirsute, sometimes furcate, pedicels 1–3 mm long. Flowers bisexual (perfect) or unisexual, yellow, pubescent, becoming glabrate. Calyx tube of staminate and perfect flowers 12–15 mm long, outer lobes 2.5–4.7 mm long, 1.5–2.5 mm wide, inner lobes 2–4mm long, 1.2–1.5 mm wide; Calyx tube of pistillate flowers 6–8 mm long, outer lobes 1.5–2.5 mm long, 1.5–2.2 mm wide, inner lobes 1.3–2 mm long, 1.2–2 mm wide. Corolla (petals) absent. Stamens 8, the lower whorl included, the upper whorl sometimes shortly exserted. Ovary superior, 1-celled; ovules solitary and pendulous.

Fruit: Fruit elliptic; 10–13 mm long; ca. 7 mm in diameter. fruit drupaceous. Seeds without endosperm.

Ploidy:

Habitat: Rare in wet forest on the windward side of Haleakalā.

Elevation Range: 1,220–1,950 m.

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

Maui Endemic

Dispersal Agents


Pollinators

Notes

  • 1,220- 1,950 m
  • Description digitized by Dylan Charter
  • Description digitized from the Manual of the Flowering Plants of Hawaii
  • known from 2 collections, the type and Faurie 1148 (BM), from ridges in Wailuku Valley, West Maui.

Bibliography

Name Published In: Fl. Hawaiian Isl.: 386 (1888)

Other References

Wagner et al. 1990:1290 (EM, WM); Oppenheimer 2011:9 (REDISCOVER/EM)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 8623 BISH 1910-10-01
2 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Hillebrand, W.B. Maui BISH
3 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Degener, O. 10381 Maui BISH 1927-06-16
4 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Skottsberg, C.J.F. 841 Maui BISH 1922-10-18
5 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Rain-forest. Preserved_Specimen Degener, O. 10382 Maui BISH 1927-06-17
6 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Vegetation: Low statured Metrosideros/ Dicranopteris Wet Shrubland w/ Clermontia, Vaccinium, Ilex, Broussaisia, Sadleria, Freycinetia, Psidium, Cheirodendron, Tibouchina, Dubautia, Labordia, Kadua, Melinis, Cyrtandra, Myrsine. Preserved_Specimen Oppenheimer, H.L. 91405 Maui BISH 2014-09-10
7 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Rain-forest. Preserved_Specimen Degener, O. 10380 Maui BISH 1927-06-27
8 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Welton, P. 2383 Maui BISH 2017-04-05
9 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Vegetation: Low statured Metrosideros/Dicranopteris Wet Shrubland 2/ Clermontia, Vaccinium, Ilex, Broussaisia, Sadleria, Freycinetia, Psidium, Cheirodendron, Tibouchina, Dubautia, Labordia, Kadua, Melinis, Cyrtandra, Myrsine. Preserved_Specimen Oppenheimer, H.L. 91404 Maui BISH 2014-09-10
10 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Vegetation: Metrosideros Montane Wet Forest. Preserved_Specimen Oppenheimer, H.L. 81631 Maui BISH 2016-08-24
11 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Rare on swampy, saturated ground. Vegetation: Metrosideros, Cheirodendron, Melicope, Leptecophylla, Coprosma, Broussaisia, Ilex, Smilax, Cibotium, Sadleria, Athyrium, Diplazium, Clermontia, Kadua, Dicranopteris, Sticherus, Diplopterygium, Astelia, Uncinia, Elaphoglossum, Asplenium, Dryopteris, Vaccinium, Labordia, Nertera, Carex, Adenophorus, Peperomia, Tibouchina, Juncus, Axonopus. Preserved_Specimen Oppenheimer, H.L. 61214 Maui BISH 2012-06-26
12 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Vegetation: Metrosideros, Cheirodendron, Dicranopteris, Coprosma, Melicope, Ilex, Psidium, Clermontia, Cibotium, Tibouchina, Vaccinium, Broussaisia, Stenogyne, Machaerina, Lycopodiella, Paspalum, Adenophorus. Preserved_Specimen Oppenheimer, H.L. 121416 Maui BISH 2014-12-08
13 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Forest Preserved_Specimen Topping, D.L. 10389 Maui BISH 1927-07-30
14 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Vegetation: Metrosideros, Melicope, Myrsine, Cheirodendron, Ilex, Sadleria, Diplazium, Rubus. Preserved_Specimen Oppenheimer, H.L. 10719 Maui BISH 2007-01-30
15 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Skottsberg, C.J.F. 841 Maui BISH 1922-10-18
16 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 8623 Maui BISH 1910-10-01
17 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Welton, P. 1960 Maui BISH 1997-09-04
18 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Welton, P. 1948 Maui BISH 1997-09-03
19 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 161 Maui BISH 1910-07-01
20 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 952 Maui BISH 1919-07-01
21 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Munro, G.C. 803 Maui BISH 1928-02-27
22 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Degener, O. 10381 Maui BISH 1927-06-16
23 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 161 Maui BISH 1910-07-01
24 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. Maui BISH 1909-01-07
25 Wikstroemia villosa Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Hillebrand, W.B. Maui BISH
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