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Ptychosperma propinquum

(Becc.) Becc. ex Martelli (1935)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Monocots Order: Arecales Family: Arecaceae Genus: Ptychosperma

Macarthur palm

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Bibliography

Name Published In: Nuovo Giorn. Bot. Ital., n.s., 41: 710 (1934 publ. 1935)

Other References

Staples & Herbst 2005:617 (KEY), 626 (DESCR [as P. macarthurii]); Daehler & Baker 2006:6 (NEWNAT/O, DESCR); Baker et al. 2024:505 (Syn. P. macarthurii = P. propinquum, DESCR, KEY)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Ptychosperma propinquum University of Hawaii Manoa Campus; Hawaii Hall Preserved_Specimen Clump forming palm with slender bamboo-like stems. Bark grayish, foliage dark green, fruit bright red. Herbst, D.R. 638 Oahu BISH 1967-10-09
2 Ptychosperma propinquum Koloa District. Lawai Valey, Allerton Estate, west side of Lawai Strem in jungle area just NW of Lotus pond. Secondary vegetation/Cultivated garden interface Dominated by Ptychosperma with Spathodea and Schefflera. Preserved_Specimen Clumping palm to ca. 20 ft.; 8 fronds/stems, fronds +/- erect arching, glossy medium green above, dull paler green olive green below, fronds 80 inches from tip to sheath, 64 inches from tip to lowest pinnae; clasping leaf sheath ca 18 inches, pale green overlain with white wax; infructescence arching (from stem below fr Flynn, T.W. 8878 Kauai BISH 2018-03-20
3 Ptychosperma propinquum Koloa District. Lawai Valey, Allerton Estate, west side of Lawai Strem in jungle area just NW of Lotus pond. Secondary vegetation/Cultivated garden interface Dominated by Ptychosperma with Spathodea and Schefflera. Preserved_Specimen Clumping palm to ca. 20 ft.; 8 fronds/stem. fronds +/- erect arching, glossy medium green above, dull paler green olive grfeen below, fronds 80 inches from tip to sheath, 64 inches from tip to lowest pinnae; clasping leaf sheath ca 18 inches, pale green overlain with white wax; infructescence arching (from stem below fr Flynn, T.W. 8878 Kauai BISH 2018-03-20
4 Ptychosperma propinquum University of Hawaii campus Preserved_Specimen Many stems from base, slender, 5 m tall, panicle below leaves; fruits red. Fosberg, F.R. 13135 Oahu BISH 1936-05-26
5 Ptychosperma propinquum University of Hawaii Manoa Campus; Hawaii Hall Preserved_Specimen Clump forming palm with slender bamboo-like stems. Bark grayish, foliage dark green, fruit bright red. Herbst, D.R. 638 Oahu BISH 1967-10-09
6 Ptychosperma propinquum University of Hawaii campus Preserved_Specimen Many stems from base, slender, 5 m tall, panicle below leaves; fruits red. Fosberg, F.R. 13135 Oahu BISH 1936-05-26
7 Ptychosperma propinquum Honolulu: Manoa Valley; University of Hawaii Manoa Campus Preserved_Specimen Krajina, V.J. 62253 Oahu BISH 1962-03-17
8 Ptychosperma propinquum University of Hawaii campus Preserved_Specimen Many stems from base, slender, 5 m tall, panicle below leaves; fruits red. Fosberg, F.R. 13135 Oahu BISH 1936-05-26
9 Ptychosperma propinquum Honolulu: Manoa Valley; Lyon Arboretum. Middle lawn mauka Preserved_Specimen Clumping palm, ht. 40'. Fronds to 6' lt/w50-60 alternate pinnae. Cane to 2½ dbh. Pinnae to 20 length w/prominent marginal veins. Rachis rufous tomentose. Sheath wooly tomentose, glaucous. Infl. branched twice, branchlets slender. Frts single, paired or in triads, pungent; fruit red. Nagata, K.M. 918 Oahu BISH 1971-11-29
10 Ptychosperma propinquum University of Hawaii campus Preserved_Specimen Many stems from base, slender, 5 m tall, panicle below leaves; fruits red. Fosberg, F.R. 13135 Oahu BISH 1936-05-26
11 Ptychosperma propinquum University of Hawaii campus Preserved_Specimen Krajina, V.J. 622 Oahu BISH 1962-01-08
12 Ptychosperma propinquum Honolulu, Foster Garden Preserved_Specimen seeds snot ruminate Neal, M.C. Oahu BISH 1957-10-24
13 Ptychosperma propinquum University of Hawaii campus Preserved_Specimen Krajina, V.J. 620316300 Oahu BISH 1962-03-16
14 Ptychosperma propinquum Foster Gardens Preserved_Specimen Leaf: sheath 14' x 5¼, petiole 11 x 3/4, blade 56 long, 32 wide in mid.; leaflets 37 (some paired), 12 long x 1¼-2½+, mid pinna., seed 3/4 x 1/3 Potter, C. Oahu BISH 1958-02-12
15 Ptychosperma propinquum Foster Gardens Preserved_Specimen Fruit only: bright red, pulp red, juicy, acid; deeply 5-grooved seed covered with thin layer of fiber; fr. beaked; cup tan; hanging in strings, each with 6+ frs. in the diam. Neal, M.C. Oahu BISH 1943-05-01
16 Ptychosperma propinquum Honolulu, Foster Gardens Preserved_Specimen fls. & fr. Neal, M.C. Oahu BISH 1951-01-13
17 Ptychosperma propinquum Capitol grounds, by old Archives Bldg Preserved_Specimen + 2 upper & 2 lower leaflets; frts red. Neal, M.C. Oahu BISH 1957-10-24
18 Ptychosperma propinquum Honolulu: Manoa Valley; Lyon Arboretum. Middle lawn mauka Preserved_Specimen Clumping palm, ht. 40'. Fronds to 6' lt/w50-60 alternate pinnae. Cane to 2½ dbh. Pinnae to 20 length w/prominent marginal veins. Rachis rufous tomentose. Sheath wooly tomentose, glaucous. Infl. branched twice, branchlets slender. Frts single, paired or in triads, pungent; fruit red. Nagata, K.M. 918 Oahu BISH 1971-11-29
19 Ptychosperma propinquum University of Hawaii Manoa Campus; Hawaii Hall Preserved_Specimen Clump forming palm with slender bamboo-like stems. Bark grayish, foliage dark green, fruit bright red. Herbst, D.R. 638 Oahu BISH 1967-10-09
20 Ptychosperma propinquum University of Hawaii campus Preserved_Specimen Many stems from base, slender, 5 m tall, panicle below leaves; fruits red. Fosberg, F.R. 13135 Oahu BISH 1936-05-26
21 Ptychosperma propinquum University of Hawaii campus Preserved_Specimen Many stems from base, slender, 5 m tall, panicle below leaves; fruits red. Fosberg, F.R. 13135 Oahu BISH 1936-05-26
22 Ptychosperma propinquum Oahu Preserved_Specimen Neal, M.C. 14 Oahu BISH
23 Ptychosperma propinquum University of Hawaii Preserved_Specimen Wilder, G.P. Oahu BISH 1930-11-13
24 Ptychosperma propinquum Oahu Preserved_Specimen Neal, M.C. 4 Oahu BISH
25 Ptychosperma propinquum University of Hawaii Preserved_Specimen Wilder, G.P. Oahu BISH 1930-11-13
26 Ptychosperma propinquum Bd. of Agric. & forestry, cor. Keeaumoku & King Sts Preserved_Specimen Weber, P.W. Oahu BISH 1945-07-23
27 Ptychosperma propinquum University of Hawaii Preserved_Specimen Wilder, G.P. Oahu BISH 1930-11-13
28 Ptychosperma propinquum Moanalua Valley, ~200 m. ma uka from Moanalua District Park. Lowland shit forest Setaria palmifolia, Kukui, Hau, Ficus microcarpa, Trema orientale. heavy pig damage Preserved_Specimen Fruit ripening bright red. Arthur, K. 77 Oahu BISH 2025-02-28
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