Heterotis rotundifolia

(Sm.) Jacq.-Fél. (1981)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Myrtales Family: Melastomataceae Genus: Heterotis

dissotis

Description

Key Characters:

Growth Form: Decumbent herbs.

Stems: Stems rooting at the nodes, up to 20 cm or more long, moderately hirtellous to pilose.

Roots:

Leaves: Leaves simple. Opposite, decussate. Blades ovate to ovate–lanceolate or suborbicular, 1.5–7 cm long, 0.8–4 cm wide. Apex acute. Base truncate to short-attenuate. Surfaces sparsely to densely pilose. Margins ciliate and somewhat crenulate. 3-veined. Petioles 0.5–2.5 cm long. Stipules absent.

Flowers: Flowers in mostly solitary or 2, terminal, pedicels ca. 2 mm long in fruit. Flowers bisexual (perfect). Hypanthium terete (cylindrical), 5–7 mm long in flower, densely covered with green, spreading, hair-like, linear–oblong appendages 2–4 mm long, apex stellate and sparsely to moderately bristly along their length; fruiting hypanthium cylindrical-campanulate, ca. 1 cm long, ca. 0.9 cm wide. Calyx lobes lanceolate in fruit, persistent, 5–6.5 mm long, 1.5–2 mm wide at base, bristly at apex and externally. Corolla of 5 petals, obovate, ca. 20 mm long, ca. 15 mm wide. Stamens 10, markedly dimorphic; anthers linear, with ventrally inclined pores, connective of larger anthers prolonged ventrally at base of anther and modified into a 2-lobed appendage at junction with filament, connective of smaller anthers barely developed ventrally; anthers of larger Stamens pink or lavender, 7–8 mm long, connective prolonged 3–4 mm and modified basally into a deeply 2-lobed spur 1.5–2 mm long; anthers of smaller Stamens yellow, 5.5–7 mm long, connective prolonged 0.5 mm or less with a 2-lobed spur usually 0.5 mm long. Ovary inferior, distinct along the distal ½ but adnate at base to inner hypanthial wall by 8–10 septa, 5-celled, apex bristly, placentation axile; ovules numerous; style simple and terminated by a punctiform to capitate stigma.

Fruit: Capsules coriaceous; enclosed by the hypanthium at maturity. Seeds numerous; cochleate; ca. 1 mm long; prominently ribbed dorsally with a deep pit on each side; endosperm absent.

Ploidy: 2n = 30

Habitat:

Elevation Range:

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Kaua'i Naturalized
O'ahu Naturalized
Maui Naturalized
Hawai'i Naturalized

Dispersal Agents


Vegetative Reproduction

Pollinators

Specimens

Bibliography

Name Published In: Adansonia, sér. 2, 20(4): 417 (1981)

Other References

Wagner et al. 1990:907 (O, M, H [as Dissotis rotundifolia]); Herbarium Pacificum Staff 1996:5 (K); Staples & Herbst 2005:394 (KEY), 395 (DESCR); Almeda 2009:233 (Syn. D. rotundifolia)

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Heterotis rotundifolia (Sm.) Jacq.-Fél. 2922 Oahu Ave, Manoa Valley Growing at base of hedge in yard. Shady wet location under roof line. PRESERVED_SPECIMEN Fujikawa, K. s.n. Oahu BISH 2/22/1989
2 Heterotis rotundifolia (Sm.) Jacq.-Fél. Honolulu: Manoa Valley; H. L. Lyon Arboretum PRESERVED_SPECIMEN Nagata, K.M. 399 Oahu BISH 6/5/1968
3 Heterotis rotundifolia (Sm.) Jacq.-Fél. 2357 B Palolo Ave PRESERVED_SPECIMEN Suenaga, B. s.n. Oahu BISH 7/1/1985
4 Heterotis rotundifolia (Sm.) Jacq.-Fél. 2922 oahu ave, manoa valley Growing at base of hedge in yard. Shady wet location under roof line. PRESERVED_SPECIMEN fujikawa, k. collector number: s.n. Oahu BISH 2/22/1989
5 Heterotis rotundifolia (Sm.) Jacq.-Fél. puna; 1 km w on pakaka road PRESERVED_SPECIMEN annable, c.r. palmer, r. collector number: 3756 Oahu BISH 1/18/1998
6 Heterotis rotundifolia (Sm.) Jacq.-Fél. Kona District, Manoa Lyon Arboretum: Intersection of the main Jeep trail and the Seismograph station near trail near trail marker 5A. PRESERVED_SPECIMEN Dunn, L. LOA_560 Oahu BISH 1/24/2014
7 Heterotis rotundifolia (Sm.) Jacq.-Fél. Hilo; Near Hilo Bay In yard of abandoned house. PRESERVED_SPECIMEN Herbst, D.R. 5511 Hawaii BISH 10/20/1975
8 Heterotis rotundifolia (Sm.) Jacq.-Fél. kaneohe; luluku Sunny roadside, growing over hillside close to stream in direct sun, with grass covering entire slope. Common in assoc. with grasses, but this plant dominates at edge of the road. PRESERVED_SPECIMEN mcconnell, k. collector number: s.n. Oahu BISH 12/4/1991
9 Heterotis rotundifolia (Sm.) Jacq.-Fél. Wailua, Wailua Homesteads, on Opaekaa Rd, just past Olu Lane on E side of street in an empty lot and along roadside W/ Citharexylum, Triumfetta semitriloba, Hyptis, Psidium cattleianum, Ficus lyrata, Spahtodea campanulata, Stachytarpheta PRESERVED_SPECIMEN Tangalin, N. 1284 Kauai BISH 5/28/2007
10 Heterotis rotundifolia (Sm.) Jacq.-Fél. wailua, wailua homesteads, on opaekaa rd, just past olu lane on e side of street in an empty lot and along roadside W/ Citharexylum, Triumfetta semitriloba, Hyptis, Psidium cattleianum, Ficus lyrata, Spahtodea campanulata, Stachytarpheta PRESERVED_SPECIMEN tangalin, n. collector number: 1284 Kauai BISH 5/28/2007
11 Heterotis rotundifolia (Sm.) Jacq.-Fél. 2357 b palolo ave PRESERVED_SPECIMEN suenaga, b. collector number: s.n. Oahu BISH 7/1/1985
12 Heterotis rotundifolia (Sm.) Jacq.-Fél. puhi camp, w of kauai community college From yard of abandoned homesite. PRESERVED_SPECIMEN flynn, t. hume, l. collector number: 1644 Kauai BISH 4/4/1986
13 Heterotis rotundifolia (Sm.) Jacq.-Fél. nuuanu area, 2616 pali hwy Growing in dappled shade. PRESERVED_SPECIMEN lau, j. et al. collector number: 1621 Oahu BISH 11/16/1985
14 Heterotis rotundifolia (Sm.) Jacq.-Fél. foster gardens Holes in coral reef PRESERVED_SPECIMEN potter, c. collector number: s.n. Oahu BISH 1/18/1960
15 Heterotis rotundifolia (Sm.) Jacq.-Fél. honolulu: manoa valley; h. l. lyon arboretum PRESERVED_SPECIMEN nagata, k.m. collector number: 399 Kauai BISH 6/5/1968
16 Heterotis rotundifolia (Sm.) Jacq.-Fél. Waialua District, Kauwalu Gulch. PRESERVED_SPECIMEN Oppenheimer, H.L. H70919 Oahu BISH 7/22/2009
17 Heterotis rotundifolia (Sm.) Jacq.-Fél. kawaihau dist. near beginning of proposed wailua cart trail moist head of steep grassy gulch PRESERVED_SPECIMEN flynn, t. collector number: 4885 Oahu BISH 1/28/1992
18 Heterotis rotundifolia (Sm.) Jacq.-Fél. Kawaihau Dist. Near beginning of proposed Wailua Cart Trail PRESERVED_SPECIMEN Flynn, T. 4885 Kauai BISH 1/28/1992
19 Heterotis rotundifolia (Sm.) Jacq.-Fél. hilo; near hilo bay In yard of abandoned house. PRESERVED_SPECIMEN herbst, d.r. ishikawa, s. collector number: 5511 Hawaii BISH 10/20/1975
20 Heterotis rotundifolia (Sm.) Jacq.-Fél. Puna; 1 km W on Pakaka Road PRESERVED_SPECIMEN Annable, C.R. Palmer, R. Collector Number: 3756 Hawaii BISH 1/18/1998
21 Heterotis rotundifolia (Sm.) Jacq.-Fél. Kaneohe; Luluku Sunny roadside, growing over hillside close to stream in direct sun, with grass covering entire slope. Common in assoc. with grasses, but this plant dominates at edge of the road. PRESERVED_SPECIMEN McConnell, K. s.n. Oahu BISH 12/4/1991
22 Heterotis rotundifolia (Sm.) Jacq.-Fél. kona district manoa. lyon arboretum: intersection of the main jeep trail and the seismograph station trail near trail marker 5a in sandy ground PRESERVED_SPECIMEN dunn, liloa 560 CM 1/10/2014
23 Heterotis rotundifolia (Sm.) Jacq.-Fél. lyon arboretum, monoa valley. PRESERVED_SPECIMEN karen m. meyer|andrew townesmith meyer 384 MO 5/16/2008
24 Heterotis rotundifolia (Sm.) Jacq.-Fél. Lyon Arboretum, Monoa Valley. PRESERVED_SPECIMEN Karen M. Meyer|Andrew Townesmith Meyer 384 Missouri Botanical Garden 5/16/2008
25 Heterotis rotundifolia (Sm.) Jacq.-Fél. 47-775 Ahilama Rd (Private land holding) Cultivated PRESERVED_SPECIMEN C. R. Annable 3368 NY 3/15/1997
26 Heterotis rotundifolia (Sm.) Jacq.-Fél. 47-775 ahilama rd (private land holding) Cultivated PRESERVED_SPECIMEN c. r. annable 3368 NY 3/15/1997
27 Heterotis rotundifolia (Sm.) Jacq.-Fél. Alani Drive, Woodlawn, Honolulu. PRESERVED_SPECIMEN W. M. Bush s.n. Oahu PTBG 3/22/1974
28 Heterotis rotundifolia (Sm.) Jacq.-Fél. puna district, 1km w on pakaka rd (private land holding) Cultivated PRESERVED_SPECIMEN c. r. annable 3756 NY 1/18/1998
29 Heterotis rotundifolia (Sm.) Jacq.-Fél. Puna District, 1km W on Pakaka Rd (Private land holding) Cultivated PRESERVED_SPECIMEN C. R. Annable 3756 NY 1/18/1998
30 Heterotis rotundifolia (Sm.) Jacq.-Fél. upper waiakea forest reserve, along an access road with vegetation growing between the ruts, small opening in dense forest, roadside. Small opening in dense forest. PRESERVED_SPECIMEN s. long 1156 Hawaii US 2/22/2001
31 Heterotis rotundifolia (Sm.) Jacq.-Fél. E. Maui, Ula'ino. PRESERVED_SPECIMEN Hank Oppenheimer H60122 Maui PTBG 6/11/2001
32 Heterotis rotundifolia (Sm.) Jacq.-Fél. Honolulu, Woodlawn, Alani Drive. Used in wetter areas. PRESERVED_SPECIMEN W. M. Bush s.n. Oahu PTBG 3/22/1974
33 Heterotis rotundifolia (Sm.) Jacq.-Fél. Wailua Rise, just east of Aina Pono Street. Growing in an unmowed/untended patch of alien grasses and trees in residential area PRESERVED_SPECIMEN Kelsey Brock 729 Kauai PTBG 9/28/2015
34 Heterotis rotundifolia (Sm.) Jacq.-Fél. Near beginning of proposed Wailua Cart Trail. Secondary vegetation. PRESERVED_SPECIMEN Tim Flynn 4885 Kauai PTBG 1/28/1992
35 Heterotis rotundifolia (Sm.) Jacq.-Fél. Wailua, Wailua Homesteads, on Opaekaa Rd, just past Olu Lane on E side of street in an empty lot and along roadside. PRESERVED_SPECIMEN Natalia Tangalin 1284 Kauai PTBG 5/28/2007
36 Heterotis rotundifolia (Sm.) Jacq.-Fél. near lava tree national monument PRESERVED_SPECIMEN Hawaii US
37 Heterotis rotundifolia (Sm.) Jacq.-Fél. hilo, in yard of abandoned house near hilo bay. PRESERVED_SPECIMEN d. r. herbst & g. spence 5511 Hawaii US 10/20/1975
38 Heterotis rotundifolia (Sm.) Jacq.-Fél. Kaneohe, 47-775 Ahilama Road, private property of Bob Osgood PRESERVED_SPECIMEN C. R. Annable, H. Van Sickle & G. A. Van Sickle 3368 Oahu US 3/15/1997
39 Heterotis rotundifolia (Sm.) Jacq.-Fél. h. l. lyon arboretum PRESERVED_SPECIMEN k. nagata 399 Oahu US 6/5/1968
40 Heterotis rotundifolia (Sm.) Jacq.-Fél. kaneohe, 47-775 ahilama road, private property of bob osgood PRESERVED_SPECIMEN c. r. annable, h. van sickle & g. a. van sickle 3368 Oahu US 3/15/1997
41 Heterotis rotundifolia (Sm.) Jacq.-Fél. wailua, wailua homesteads, on opaekaa rd, just past olu lane on e side of street in an empty lot and along roadside. PRESERVED_SPECIMEN n. tangalin 1284 Kauai US 5/28/2007
42 Heterotis rotundifolia (Sm.) Jacq.-Fél. Upper Waiakea Forest Reserve, along an access road with vegetation growing between the ruts, small opening in dense forest, roadside. Small opening in dense forest. PRESERVED_SPECIMEN S. Long 1156 Hawaii US 2/22/2001
43 Heterotis rotundifolia (Sm.) Jacq.-Fél. hilo PRESERVED_SPECIMEN f. r. fosberg 51727 Oahu US 12/9/1969
44 Heterotis rotundifolia (Sm.) Jacq.-Fél. state of hawaii division of forestry and wildlife. permit: 05046 upper waiakea forest reserve. along an access road with vegetation growing between the ruts. small opening in dense forest, roadside. Small opening in dense forest, roadside. Black volcanic soil. PRESERVED_SPECIMEN sandy long 1156 USU 2/22/2001
45 Heterotis rotundifolia (Sm.) Jacq.-Fél. Foster Gardens PRESERVED_SPECIMEN Potter, C. s.n. Oahu BISH 8/25/1958
46 Heterotis rotundifolia (Sm.) Jacq.-Fél. State of Hawaii Division of Forestry and Wildlife. Permit: 05046 Upper Waiakea Forest Reserve. Along an access road with vegetation growing between the ruts. Small opening in dense forest, roadside. Small opening in dense forest, roadside. Black volcanic soil. PRESERVED_SPECIMEN Sandy Long 1156 UTC 2/22/2001
47 Heterotis rotundifolia (Sm.) Jacq.-Fél. Puhi Camp, W of Kauai Community College From yard of abandoned homesite. PRESERVED_SPECIMEN Flynn, T. 1644 Kauai BISH 4/4/1986
48 Heterotis rotundifolia (Sm.) Jacq.-Fél. Puna; 1 km W on Pakaka Road PRESERVED_SPECIMEN Annable, C.R. 3756 Hawaii BISH 1/18/1998
49 Heterotis rotundifolia (Sm.) Jacq.-Fél. Foster Gardens PRESERVED_SPECIMEN Potter, C. s.n. Oahu BISH 1/18/1960
50 Heterotis rotundifolia (Sm.) Jacq.-Fél. Nuuanu area, 2616 Pali Hwy Growing in dappled shade. PRESERVED_SPECIMEN Lau, J. 1621 Oahu BISH 11/16/1985