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Melicope rostrata

(Hillebr.) Appelhans, K.R.Wood & W.L.Wagner (2017)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Sapindales Family: Rutaceae Genus: Melicope

pilo kea lau li‘i [pilo kea laulii]

Description

Key Characters:

Growth Form: Erect palmoid shrubs 1–3 m tall.

Stems: Main stem 1–2 cm in diameter, few–branched, branches ascending, leafy toward apex, new growth hirtellous, wood somewhat brittle, with a pepsin-like odor when freshly broken.

Roots:

Leaves: Leaves simple. Opposite. Blades narrowly oblong to very narrowly elliptic or subspatulate, usually 20–42 cm long, 4–12 cm wide. Apex bluntly acute to subacuminate or rounded. Base truncate, obtuse, or rarely subcordate. Surfaces glabrate. Margins entire. Lateral veins numerous, almost perpendicular to midrib, connected by a deeply arched vein, midrib sulcate on upper surface. Petioles 3–18 mm long. Stipules absent.

Flowers: Flowers 3–9 in axillary cymes, hirtellous, sometimes 2–3 cymes clustered in fascicles up to 2 cm long, in the leaf axils or below the leaves, peduncles 1–3 mm long, pedicels 4–9 mm long. Flowers bisexual (perfect), actinomorphic. Calyx of 4 sepals, in imbricated pairs, broadly ovate, ca. 3 mm long and 5 mm wide, sparsely puberulent. Corolla of 4 petals, white or cream, slightly imbricate, oblong, 12–13 mm long, ca. 5 mm wide, glabrous. Stamens 8; filaments white, nearly completely connate into a staminal tube; anthers subsessile, longer ones ca. 2.5 mm long, shorter ones ca. 2 mm long, elongate, base subhastate, dithecal. Ovary superior, 4-carpellate, 4-lobed, carpels connate in lower ½, subconical and narrowed into a short style, placentation axile; ovules 5–8 per carpel, pendulous on short, broad funiculi; style columnar; stigmas linear, erect, connate, slightly thickened apically.

Fruit: Fruit cruciate; ca. 20–25 mm in diameter (measured between carpel apices); glabrous; carpels erect to somewhat spreading in fruit; ca. 12–17 mm long; apex with a long slender beak 5–10 mm long. Seeds 8 per carpel; embryo with thin; broad; rounded cotyledons; hypocotyl very short; embedded in white endosperm.

Ploidy: 2n = 36*

Habitat: Mesic forest and mesic valleys.

Elevation Range: 760–1,220 m.

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

Kaua'i Endemic

Dispersal Agents


Pollinators

Bibliography

Name Published In: PhytoKeys 91: 132 (2017)

Other References

Wagner et al. 1990:1210 (K [as Platydesma rostrata]); Appelhans et al. 2017:132 (COMBNOV, Syn. P. rostrata = M. rostrata)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 6081 Kauai BISH 1909-10-01
2 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Acacia montane mesic forest with Alphitonia ponderosa, Nestegis sandwicensis, Dodonaea viscosa, Psychotria mariniana, P. greenwelliae, Wikstroemia furcata, Kadua affinis, Coprosma waimeae, Antidesma platyphylla hillebrandii, Claox Preserved_Specimen Tre, 1.5 meters tall, plant with tage #9, in fruit, about 10 plants in general area, mapped. Wood, K.R. 17299 Kauai BISH 2017-03-02
3 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 2317 Kauai BISH 1909-02-14
4 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 133 Kauai BISH 1909-08-04
5 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Cranwell, L.M. 3100 Kauai BISH
6 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Cranwell, L.M. 3100 Kauai BISH 1938-08-20
7 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Knudsen Kauai BISH
8 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Stone, B.C. Kauai BISH 1960-03-01
9 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Kauai BISH
10 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Hobdy, R.W. 132 Kauai BISH 1969-07-03
11 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 6081 Kauai BISH 1909-10-01
12 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Knudsen Kauai BISH
13 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details In mesic forest Preserved_Specimen Stone, B.C. 1599 Kauai BISH 1956-12-29
14 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Cheirodendron mixed wet forest with dissecting drainages and matting ferns of Diplopterygium and Dicranopteris with Broussaisia arguta, Perrottetia sandwicensis, Touchardia latifolia, Pipturus albidus, P. ruber, Psychotria mariniana, P. hexandra, Antidesma platyphylla, Polyscias oahuensis, Kadua affinis, Melico Preserved_Specimen tree, 2 meters tall, in fruit and flower, ca. 7 trees with seedlings, Wood, K.R. 15751 Kauai BISH 2013-11-25
15 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Acacia montane mesic forest with Alphitonia ponderosa, Nestegis sandwicensis, Dodonaea viscosa, Psychotria mariniana, P. greenwelliae, Wikstroemia furcata, Kadua affinis, Coprosma waimeae, Antidesma platyphylla hillebrandii, Claox Preserved_Specimen Tree, 4 meters tall, plant with tage #2, in fruit, about 10 plants in general area. Wood, K.R. 17298 Kauai BISH 2017-03-02
16 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details In Metrosideros wet forest with Tetraplasandra, Dubautia knudsenii, Syzygium, Antidesma, Diplazium, Bidens, Perrottetia, Sadleria cyatheoides, Isodendrion, Broussaisia, Freycinetia, Pisonia, Cyanea spp., Pipturus, Labordia, Cyrtandra paludosa, Carex wahuensis, Pritchardia, Odontosoria chinensis. Preserved_Specimen About 10 plants seen, with flowers and immature fruit. Perlman, S. 14431 Kauai BISH 1994-09-26
17 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Cheirodendron-Dircranopteris wet forest. With Kadua affinis, Psychotria mariniana, Melicope clusiifolia, Ilex anomala, Syzygium sandwicensis, Elaeocarpus bifidus, Dodonaea viscosa, Santalium involutum Preserved_Specimen 5 trees in close proximity, 1-2 meters tall, feew branched in flower and early fruit, mapped Wood, K.R. 1582 Kauai BISH 2014-02-11
18 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Rain forest. Preserved_Specimen Small tree. Ht. 3 m. MacDaniels, L.H. 837 Kauai BISH 1927-02-21
19 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details In mesic forest Preserved_Specimen Slender erect shrubs usually unbranched; wood when broken with a semeniferous odor. Stone, B.C. 1599 Kauai BISH 1956-12-29
20 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Native mesic-summer dry forest. In moist heavily shaded area Preserved_Specimen Sparingly branched shrub about 5 ft tall; pale foliage tufted at end of stems; flowers white. Herbst, D.R. 2372 Kauai BISH 1972-03-22
21 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Wet forest. Preserved_Specimen 8 ft shrub, flowers white. St.John, H. 13706 Kauai BISH 1933-12-27
22 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Acacia koa- Metrosideros polymorpha - Diranopteris linearis montane mesic with Bobea brevipes, Ilex anomala, Wikstroemia furcata, Claoxylon sandwicensis, Polyscias waimeae, Melicope anisata, M. barbigera, Kadua affinis, Psychotria greenwelliae, Planchonella sandwicensis, Do Preserved_Specimen tree, 2 m tall, several trunked, branches gray, stiffly ascending, in early flower, with Dubautia latifolia, 2 trees, mapped Wood, K.R. 15176 Kauai BISH 2012-08-09
23 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Acacia-Metrosideros lowland to montane mesic forest with abundance of Alphitonia, W/Melicope barbigera, Myrsine lanaiensis, Psychotria mariniana, Nestegis sandwicensis, Pittosporum kavaiensis. Preserved_Specimen trees, few branched, around gulch bottom, 6 in group, up to 2m tall, in flower and fruit. Wood, K.R. 14490 Kauai BISH 2011-02-04
24 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Acacia montane mesic forest with Alphitonia ponderosa, Nestegis sandwicensis, Dodonaea viscosa, Psychotria mariniana, P. greenwelliae, Wikstroemia furcata, Kadua affinis, Coprosma waimeae, Antidesma platyphylla hillebrandii, Claox Preserved_Specimen Tree, 3.5 meters tall, plant with tag #6, in fruit, about 10 plants in general areq, mapped. Wood, K.R. 17297 Kauai BISH 2017-03-02
25 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Simple-branched shrub, flowers white Nagata, K.M. 2469 Kauai BISH 1982-06-05
26 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Acacia montane mesic forest with Alphitonia ponderosa, Nestegis sandwicensis, Dodonaea viscosa, Psychotria mariniana, P. greenwelliae, Wikstroemia furcata, Kadua affinis, Coprosma waimeae, Antidesma platyphylla hillebrandii, Claox Preserved_Specimen Tree, 2 meters tall, in fruit, about 10 plants in general area, mapped. Wood, K.R. 17296 Kauai BISH 2017-03-02
27 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Shrub 4 ft high, branching from base. Rock, J.F.C. 17271 Kauai BISH 1920-01-28
28 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details In forest. Preserved_Specimen St.John, H. 26762 Kauai BISH 1964-08-21
29 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 2317 Kauai BISH 1909-02-14
30 Melicope rostrata Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Rock, J.F.C. 2317 Kauai BISH 1909-02-14
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