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Pittosporum argentifolium

Sherff (1941)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Apiales Family: Pittosporaceae Genus: Pittosporum

hā‘awa [haawa], hō‘awa [hoawa]

Description

Key Characters:

Growth Form: Small trees 6–9 m tall, young parts densely pale brown to whitish strigose–tomentose.

Stems: Branches whitish to pale brown flocculose–strigose.

Roots:

Leaves: Leaves simple. Alternate. Blades oblong–elliptic, oblong–oblanceolate, or oblanceolate, (9–)15–30 cm long, 3.4–8(–9) cm wide. Apex acuminate to acute. Base attenuate. Upper surfaces with slightly impressed veins, whitish flocculose strigose, glabrate with age; lower surfaces with slightly raised veins, densely whitish to pale brown flocculose–strigose, hairs sometimes coherent into a skin-like layer; blades subcoriaceous to coriaceous. Margins entire, slightly revolute. Lateral veins 13–25 pairs. Petioles 1.5–3 cm long. Stipules absent.

Flowers: Flowers in inflorescences densely pale brown to whitish strigose–tomentose. peduncles 4–30 mm long, pedicels 2–6 mm long, bracts subulate, 7–8 mm long. Flowers unisexual, 10–20 in axillary or cauline, simple, corymbose inflorescences. Calyx broadly cup-shaped, sepals 5, distinct, ovate, 3–3.5 mm long, densely pale brown to brown tomentose, apex acute. Corolla of 5 petals, white, ca. 13 mm long. Stamens not seen. Ovary superior, 2-carpellate, 2–3-celled, on a short gynophore, placentation parietal; ovules numerous, in 2 rows per placenta; style 1; stigma capitate.

Fruit: Capsules ovoid to obovoid or subcuboid; 18–30 mm long; densely pale brown to whitish tomentose when immature; usually sparsely so at maturity; apex rounded to truncate or occasionally subcordate; the persistent style ca. 2–3 mm long; the valves with woody exocarp 2–3 mm thick; ± with a median furrow; the surface shallowly to deeply rugose–tuberculate; the troughs between the convolutions narrow; seed mass filling the capsules volume. Seeds ca. 15–18; black; irregularly angled and compressed; ca.6–7 mm long.

Ploidy:

Habitat: Dry to mesic forest.

Elevation Range: 330–1,530 m.

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

Molokai Endemic
Maui Endemic

Dispersal Agents


Pollinators

Bibliography

Name Published In: Publ. Field Columb. Mus., Bot. Ser. 22: 424 (1941)

Other References

Wagner et al. 1990:1039 (Mo, M)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 2062 Maui BISH 1920-03-23
2 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen 25' tree Rock, J.F.C. 27004 Maui BISH 1953-02-01
3 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 1964 Maui BISH 1920-03-14
4 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details On S rim along an unimproved trail to Kapuna Springs. Vegetation: Metrosideros, Dicranopteris, Dodonaea, Cheirodendron, Clermontia, Vaccinium, Leptecophylla. Preserved_Specimen Single 5m tall tree. Oppenheimer, H.L. 110618 Molokai BISH 2006-11-27
5 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Entangled in a large Cheirodendron tree. Metrosideros rainforest w. Myrsine & Coprosma. Preserved_Specimen Leaves essentially glabrous above, 20 cm long x 6 cm wide. Capsules rugose, maintaining tomentose at maturity. Spence, G. 122 Molokai BISH 1972-11-30
6 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen W/o flowers. Hobdy, R.W. 1782 Maui BISH 1983-07-10
7 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. Maui BISH 1920-01-01
8 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Corn, C. Molokai BISH 1982-05-21
9 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Degener, O. 10959 Molokai BISH 1928-03-15
10 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 8610 Maui BISH 1910-10-24
11 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 2064 Maui BISH 1920-03-23
12 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 2052 Maui BISH 1920-03-20
13 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 122 Molokai BISH 1912-07-01
14 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 192 Maui BISH 1910-07-01
15 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 121 Molokai BISH 1912-07-01
16 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Medeiros, A.C. 357 Maui BISH 1983-01-07
17 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 121 Molokai BISH 1912-07-01
18 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 1786 Maui BISH 1920-03-01
19 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Lydgate, J.M. 159 Maui BISH
20 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 8656 Maui BISH 1910-11-01
21 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 122 Molokai BISH 1912-07-01
22 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 8656 Maui BISH 1910-11-01
23 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 8656 Maui BISH 1910-11-01
24 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 8656 Maui BISH 1910-11-01
25 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 2064 Maui BISH 1920-03-23
26 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 896 Maui BISH 1919-07-20
27 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 8610 Maui BISH 1910-10-24
28 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 1981 Maui BISH 1920-03-15
29 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 8610 Maui BISH 1910-10-24
30 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 1964 Maui BISH 1920-03-14
31 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Wilder, G.P. Maui BISH 1913-01-01
32 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Russell, C.A. Molokai BISH 1987-10-22
33 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Dryish gulch. Preserved_Specimen Dense 15 ft tree. Degener, O. 27553 Molokai BISH 1961-06-30
34 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Dry native shrub community w. scattered mixed native trees. Preserved_Specimen Hairy. Stemmermann, R.L. 3856 Molokai BISH 1979-06-20
35 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros montane wet forest with Cheirodendron, Coprosma, Dubautia, Melicope, Labordia, Cyrtandra, Cyanea, Rubus hawaiensis, Ilex, Dryopteris, Styphelia, Broussaisia, Clermontia Preserved_Specimen Perlman, S. 10549 Maui BISH 1988-03-11
36 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details W. Dracaena, Dodonaea, Metrosideros, Styphelia. Preserved_Specimen Robust 12 ft tree, fruiting abundantly. Imada, C. 111 Molokai BISH 1985-09-25
37 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Low wet forest with Metrosideros dominant on lower slopes and valley bottom, with Styphelia/Dodonaea shrubland on upper slopes and ridgetops. Preserved_Specimen Tree 3 m tall with sparse crown, leaves whitish tomentose beneath. Fruit green. Lorence, D.H. 5625 Molokai BISH 1987-10-21
38 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details On lower, rocky gulch slope in mesic forest remnant. Vegetation: Dodonaea, Metrosideros, Diospyros Schiedea, Pleomele, Pteridium, Wikstroemia, Leptecophylla, Bidens, Cyperus, Lipochaeta, Pouteria, Pouteria, Scaevola, Ageratina, Ochrosia, Nestegis, Melicope, Pisonia, Zanthoxylum, Carex, Ipomoea, Cocculus, Melinis, Assplenium, Coprosma, Kadua, Rumex, Doryopteris, Osteomeles, Myrsine, Myoporum, Luzula, Ricinis, Neonotonia. Preserved_Specimen Single 3 meter tall tree. Flowers cream-colored, fragrant in evening after being detached. Oppenheimer, H.L. 10915 Molokai BISH 2009-01-13
39 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Growing in Styphelia - Dodonaea scrub with Exocarpos and Scaevola. Preserved_Specimen Small tree 8' tall, 3 basal diameter. Anderson, S.J. 557 Molokai BISH 1982-05-30
40 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details W. Metrosideros overstory, Chamaesyce celastroides, Dodonaea, Alyxia, Wikstroemia, Osteomeles, Physalis peruviana, gulch choked w. Melinis. Preserved_Specimen Openly-branched 15 ft tree, flowering & fruiting. Mill, S.W. 510 Molokai BISH 1986-10-17
41 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Open woods. Preserved_Specimen 20 ft tree. St.John, H. 12536 Molokai BISH 1932-12-23
42 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Ohia Mixed Mesic Forest at 3750 ft on the southern most ridge of Lihau with Metrosideros, Cheirodendron, Dodonaea, Dubautia, Myrsine, Tetraplasandra, Sadleria and Dicranopteris Preserved_Specimen Welton, P. 1402 Maui BISH 1991-11-28
43 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros, Leptecophylla, Lipochaeta, Osteomeles anthyllidifolia, Nestegis sandwicensis, Spermolepis hawaiiensis, Nesoluma polynesicum, Pouteria sandwicensis, Coprosma foliosa, Melinis minutiflora, Anthoxanthum, Ageratina riparia Preserved_Specimen ~20' tree; fruit Perlman, S. 20423 Molokai BISH 2007-06-07
44 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Relatively intact dry forest of Diospyros, Pouteria, Canthium, Nestegis, & Pleomele. Occasional along dry stream. Preserved_Specimen Tree 4 m tall, ripe fruits pale orange, seeds black, viscid. Lorence, D.H. 5675 Molokai BISH 1987-10-23
45 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Lava flows. Preserved_Specimen Rock, J.F.C. Maui BISH 1954-02-01
46 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details W. Dracaena, Dodonaea, Metrosideros, Styphelia. Preserved_Specimen Spreading tree 8 ft ht, several-brnaching at 4 ft level, basal diam. 1.5 inches. Fruits smooth to slightly rigose, with tomentose, leaves white-tomentose on both surfaces, upper surgace glabrate w. age. Imada, C. 110 Molokai BISH 1985-09-25
47 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details slopes and gulches; Metrosideros, Dodonaea, Leptecophylla, Wikstroemia, Dubautia, Exocarpos, Viola, Alyxia, Asplenium, Coprosma, Luzula, Peperomia, Dryopteris, Pteridium Preserved_Specimen to 5 m tree Oppenheimer, H.L. 40813 Molokai BISH 2008-04-21
48 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Rare, in Dodonaea-Metrosideros-Styphelia scrub. Preserved_Specimen Stout shrub 2.5 m ht, branches thick, leaves with scurfy tomentum on both surfaces, upper surface soon glabrous. Capsules yellow when mature. Nagata, K.M. 2711 Molokai BISH 1983-07-29
49 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Dry exotic grassland with native and exotic shrubs and scattered native trees. Preserved_Specimen Warshauer, F.R. 2704 Maui BISH 1980-06-24
50 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Lowland Dry Forest at 1350 ft on a north facing cliff face nestled with Dodonaea, Gouania hillebrandii, Canthium, Diospyros, Metrosideros, Alyxia, Achyranthes, Bidens, Chenopodium, and an assortment of native and alien grasses and herbs Preserved_Specimen Welton, P. 1355 Maui BISH 1991-10-27
51 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Assoc. w. low-growing scrub vegetation: Coprosma, Styphelia, Dodonaea, Wikstroemia. Preserved_Specimen Tree 8 ft ht, 2-branched from the ase, each trunk 4dbh. Leaves white-tomentose underneath, light green above. Fruits rugose, abundant. Imada, C. 113 Molokai BISH 1985-09-25
52 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Dicranopteris lowland wet forest w/ Melicope peduncularis, M. molokaiensis, Dryopteris, Diplazium, Sadleria, Athyrium, Cibotium. Preserved_Specimen 3 m tall, many-branched tree; trunk grey-brown; leaves dark-green on surface w/ yellow-white nerve, paler below w/mottled shades of green; flowers fragrant. Wood, K.R. 4097 Molokai BISH 1995-02-21
53 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Ohia Mixed Mesic Forest at 3750 ft on the southern most ridge of Lihau with Metrosideros, Cheirodendron, Dodonaea, Dubautia, Myrsine, Tetraplasandra, Sadleria and Dicranopteris Preserved_Specimen Welton, P. 1594 Maui BISH 1992-10-12
54 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Growing on south slope of ridge. Scrub of Metrosideros, Dodonaea, Styphelia, Gouldia, and Exocarpos. Growing next to a Santalum ellipticum. Preserved_Specimen Height 10', dbh 8, spread of 10 to 15 ft. Many twisting branches. Dark green leaves with pale undersides. Fruit green, paired with white and brown tomentum coming off, leaving bare spots. Davis, J. 872 Molokai BISH 1982-05-29
55 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Rare. Preserved_Specimen 30 ft tree. Hosaka, E.Y. 2633 Maui BISH 1941-12-06
56 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details On steep slope. Mesic ohia forest with other native trees and a native shrub, matted-fern understory. Preserved_Specimen 8 m ht, 25 cm Bd. Warshauer, F.R. 2368 Molokai BISH 1979-06-25
57 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Growing on side of stream bank with Cyrtandra and Planchonella. Preserved_Specimen Small tree 15' tall. Anderson, S.J. 547 Molokai BISH 1982-05-28
58 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details In dense forest. Preserved_Specimen Trees to 20 ft ht. Hobdy, R.W. 681 Maui BISH 1979-10-11
59 Pittosporum argentifolium Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros polymorpha, Leptecophylla tameiameiae, Santalum ellipticum, Dodonaea viscosa, Osteomeles anthyllidifolia, Dicranopteris, Elaphoglossum paleaceum, Deschampsia nubigena, Luzula hawaiiensis, Dianella sandwicensis, Lysimachia Preserved_Specimen 4 m tree, moderately branches; flower, fruit Wood, K.R. 10565 Molokai BISH 2004-02-05
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