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Polyscias lydgatei

(Hillebr.) Lowry & G.M.Plunkett (2010)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Apiales Family: Araliaceae Genus: Polyscias

Description

Key Characters:

Growth Form: Small tree, 7–10 m tall quite glabrous, secretory canals present in most parts.

Stems:

Roots:

Leaves: Leaves compound. Alternate. Blades 34–40 (50) cm long, 5–11–foliate, blades of leaflets elliptic–oblong or at times narrowly obovate, 6–10 cm. long and 2–4.5 cm. wide; petiolules delicate, 8–23 mm. long. Leaflet apices rounded. Base rounded to attenuate Leaflets thin-chartaceous. Margins entire and slightly revolute Petioles 8–9 cm. long. Stipules absent or rudimentary.

Flowers: Flowers in terminal (often appearing lateral) inflorescence twice–umbellate from a short, common rhachis of about 6 mm.; peduncles 9–12, slender, <2 mm wide, 8–10 cm long, bearing terminal sperical umbellets of about 26–47 flowers. Flowers bisexual (perfect), actinomorphic; pedicels slender < 1 mm wide, 15–30 mm long. Calyx broad–obconical, 5 mm. tall, with undulating border. Corolla of 6 petals, yellow to yellow green, cohering at their tips, 6 mm. long. Stamens 12 or 18 (two to three times as many as petals) in a single whorl, about 4 mm. long; anthers straight or recurved. Ovary inferior, (3)–4 celled; stigmas 4, sessile. Nectary disk flat to conical, yellow.

Fruit: Drupes 1 cm long; 0.5–0.7 cm wide; globose to ovoid with stylopodium forming small (1 mm) beak; fruit wall becoming longitudinally ridged when dry Seeds 1 per pyrene; globose; 4–5 mm long; embryo small.

Ploidy:

Habitat: Dry to mesic areas; open woods; ridges; degraded msesic forest.

Elevation Range: 335–378 m

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

O'ahu Endemic

Dispersal Agents


Pollinators

Notes

  • Description digitized by Timothy Gallaher/curated by Pumehana Imada. The description uses data from The Manual Flowering of Flowering Plants of Hawaii, Sherff (1955) and Motley (2005).
  • This species was founded by Hillebrand upon a plant attributed to Lydgate and which had been collected at Wailupe, southeastern-most Oahu. The type was in the Berlin Herbarium and perished with the destruction of that herbarium in World War II. I have bef

Bibliography

Name Published In: Pl. Divers. Evol. 128: 74 (2010)

Other References

Motley, T. J. (2005). Tetraplasandra lydgatei (Araliaceae): Taxonomic Recognition of a Rare, Endemic Species from O‘ahu, Hawaiian Islands1. Pacific science, 59(1), 105-110.

Wagner et al. 1990:235 (Syn. Tetraplasandra lydgatei = T. oahuensis); Motley 2005:106 (RESURRECT/O, KEY, DESCR); Lowry & Plunkett 2010:74 (COMBNOV, Syn. T. lydgatei = P. lydgatei)

Sherff, E. E. (1955). Revision of the Hawaiian members of the genus Tetraplasandra A. Gray. Chicago Natural Histor. Museum.

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Topping, D. L.; Bush, W. 3701 Oahu US 12/3/1933
2 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN d. l. topping & w. bush 3701 Oahu US 12/3/1933
3 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN c. n. forbes 1942.o Oahu US 10/15/1914
4 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN obata, j.k. fenstemacher, r. collector number: s.n. Oahu BISH 8/2/1992
5 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN chung, d. collector number: s.n. Oahu BISH 7/30/2000
6 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information In degraded mesic forest on windswept side ridge. PRESERVED_SPECIMEN Chung, D. s.n. Oahu BISH 6/28/2000
7 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information draped over weedy shrubbery PRESERVED_SPECIMEN forbes, c.n. bridwell, j.c. collector number: 2461 o Oahu BISH 4/11/1917
8 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN d. l. topping & w. bush 3701 A 12/3/1933
9 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN o. degener 17796 MICH 11/20/1926
10 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information Open, windy rain-forest. PRESERVED_SPECIMEN o. degener 17796 NY 11/20/1926
11 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN t. j. motley 2032 NY 10/3/1998
12 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN d. l. topping 3701 NY 12/3/1933
13 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information Mixed mesic forest remnant now dominated by strawberry guava (Psidium cattleianum). PRESERVED_SPECIMEN T. J. Motley 2032 NY 10/3/1998
14 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information Open windy rainforest. PRESERVED_SPECIMEN Degener, O. 17796 Oahu US 11/20/2026
15 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN w. l. stern 1367 Oahu US
16 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN macdaniels, l.h. collector number: 466 Oahu BISH 1/27/1927
17 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information E facing; w Psidium etc. PRESERVED_SPECIMEN obata, j.k. fenstemacher, r. collector number: s.n. Oahu BISH 9/27/1992
18 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information In degraded mesic forest on windswept side ridge. PRESERVED_SPECIMEN chung, d. sakamoto, m.; furuya, m. collector number: s.n. Oahu BISH 6/28/2000
19 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information Boggy area. PRESERVED_SPECIMEN o. degener 17796 Hawaii BISH 11/20/1926
20 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information Freely branching 15 ft. tall tree in degraded mesic forest on windswept side ridge. PRESERVED_SPECIMEN Chung, D. Collector Number: s.n. Oahu BISH 9/23/2000
21 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information dry open woods PRESERVED_SPECIMEN Degener, O. 6099 Oahu BISH 6/4/1932
22 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information dry open woods PRESERVED_SPECIMEN degener, o. swezey, o.; park, k.k.; mitta collector number: 6099 Oahu BISH 6/4/1932
23 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information Along ridgetop, growing under larger Psidium sp. (waiawi); in drier steep habitat. PRESERVED_SPECIMEN Obata, J.K. s.n. Oahu BISH 8/2/1992
24 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information With Psidium cattleianum, Sideroxylon polynesicum, Schinus terebinthifolia, Euphorbia celastroides. PRESERVED_SPECIMEN Thomas, M. K. 27 Oahu BISH 9/1/2019
25 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Forbes, C.N. 2461.O Oahu BISH 4/11/1917
26 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN MacDaniels, L.H. 466 Oahu BISH 1/27/1927
27 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information Freely branching 15 ft. tall tree in degraded mesic forest on windswept side ridge. PRESERVED_SPECIMEN Chung, D. s.n. Oahu BISH 9/23/2000
28 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN forbes, c.n. collector number: 2511 o Oahu BISH 5/4/1917
29 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information E facing; w Psidium etc. PRESERVED_SPECIMEN Obata, J.K. s.n. Oahu BISH 9/27/1992
30 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Forbes, C.N. 2511.O Oahu BISH 5/4/1917
31 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information Freely branching 15 ft. tall tree in degraded mesic forest on windswept side ridge. PRESERVED_SPECIMEN chung, d. collector number: s.n. Oahu BISH 9/23/2000
32 Polyscias lydgatei (Hillebr.) Lowry & G.M.Plunkett Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Chung, D. s.n. Oahu BISH 7/30/2000
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