Mallotus philippensis

(Lam.) Müll.Arg. (1865)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Malpighiales Family: Euphorbiaceae Genus: Mallotus

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Description

Key Characters:

Growth Form: Trees up to 7 m tall.

Stems: Young branches densely brown scurfy, leaf scars prominent.

Roots:

Leaves: Leaves simple. Alternate. Blades elliptic, ovate, or ovate–lanceolate, 4–15 cm long, 2–7 cm wide. Apex obtuse to acute. Base obtuse and with 2 small circular glands above. Upper surfaces green and glabrous; lower surfaces grayish green, tomentulose, and covered with numerous tiny, red, glandular dots; blades chartaceous. Margins entire or sinuate. Petioles 0.5–2 cm long, densely brown scurfy. Stipules minute, lanceolate, caducous.

Flowers: Flowers in inflorescence of axillary or terminal racemes; axes densely brown scurfy and with numerous tiny, red, glandular dots; staminate flowers crowded in racemes 5–17 cm long that are clustered at the ends of the branches; pistillate flowers widely spaced in racemes 3–10 cm long that are clustered at the ends of the branches. Flowers unisexual pedicels, densely brown scurfy and with numerous tiny, red, glandular dots; staminate flowers pedicels 2–4 mm long pistillate flowers pedicels 1–1.5 mm long. Calyx of staminate flowers 2–4-lobed, 1.3–2 mm long, pistillate flower Calyx 5-lobed, ca. 1 mm long; outer calyx surface densely brown scurfy and with numerous tiny, red, glandular dots. Corolla (petals) absent. Stamens in staminate flower ca. 16–20, 1.2–2.5 mm long. Ovary superior (pistillate flowers); styles joined at base; stigmas covered with numerous tentacular processes.

Fruit: Capsules deeply 3–lobed; 5–7 mm in diameter; covered with a dense; red; powdery scurf. Seeds black; smooth; suborbicular ca.3 mm in diameter.

Ploidy: 2n = 22

Habitat:

Elevation Range:

Historical Distribution

Images

Uses and Culture

USES

  • Yes

Natural History

Statewide Status

Naturalized

Island Status

O'ahu Naturalized

Dispersal Agents


Pollinators

Bibliography

Name Published In: Linnaea 34: 196 (1865)

Other References

Wagner et al. 1990:624 (O); Daehler & Baker 2006:15 (O)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Mallotus philippensis Waianae Mountains, Lualualei, Naval Magazine Preserved_Specimen Funk, E.J. 240 Oahu BISH 1984-10-01
2 Mallotus philippensis Lualualei, Kauhiuhi Valle, NE of Puu Kaua Preserved_Specimen Moribe, J. Oahu BISH 1995-04-05
3 Mallotus philippensis Lualualei Valley behind the U.S. Naval Magazine. Distr. Waianae Preserved_Specimen Nagata, K.M. 3074 Oahu BISH 1984-10-23
4 Mallotus philippensis Pauoa, Booth Road UTM2358164, 619892 Preserved_Specimen OED 2008081407 Oahu BISH 2008-08-14
5 Mallotus philippensis Lualualei; naval magazine; area between Puu Hapapa and Puu Kanehoa Degraded lowland dry forest with Abutilon sandwicense, Microlepia strigosa, Lobelia niihauense on basalt walls. Threats: Toona, Ficus microcarpa, Passiflora suberosa, cattle, goats. Preserved_Specimen Wood, K.R. 3189 Oahu BISH 1994-05-17
6 Mallotus philippensis Schofield Barracks South Range, by skeet range. UTM 592355, 2376092. Non-native dominated area. Preserved_Specimen Beachy, J. 436 Oahu BISH 2016-04-04
7 Mallotus philippensis Pacific Heights, Haili Rd Growing in yard on roadside. Preserved_Specimen Walvoord, N. 2023011 Oahu BISH 2023-04-02
8 Mallotus philippensis Wahiawa Botanic Garden Preserved_Specimen Lau, J. 2214 Oahu BISH 1986-04-07
9 Mallotus philippensis Waianae Mountains, Lualualei, Naval Magazine Preserved_Specimen Funk, E.J. 240 Oahu BISH 1984-10-01