Psychotria hexandra

H.Mann (1867)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Gentianales Family: Rubiaceae Genus: Psychotria

kōpiko [kopiko]

Description

Key Characters:

Growth Form: Trees or shrubs up to 6 m tall.

Stems:

Roots:

Leaves: Leaves simple. Opposite. Blades obovate to oblanceolate, 3.1–20.8 cm long, 1.3–9 cm wide. Apex acute and often with a very pronounced, acute tip. Base acute or attenuate. Surfaces glabrous to pubescent; blades membranous, chartaceous, or coriaceous, domatia small and inconspicuous. Margins entire. Lateral veins 7–12 pairs. Petioles 0.4–3 cm long at base. Stipules irregularly obovate, up to 15 mm long.

Flowers: Flowers in inflorescences either with 1 main axis or 2–3–branched, or trichotomous from base, up to 12 cm long, with dichotomous branching, ultimate branches usually terminated by a 3–flowered cymule, central flower short–pedicellate or sessile, lateral flowers of the cymule usually sessile, subtended by opposite sterile bracts. Flowers insect-pollinated, unisexual, usually heterostylous, usually 6-merous. Calyx glabrous or pubescent, 4–5.5 mm long, usually shorter than hypanthium, expanded toward apex, truncate or lobed. Corolla white, apex obtuse or acute in bud, the tube 6–13 mm long at anthesis, expanded toward apex, throat pubescent, the lobes 4-6, narrowly ovate–subulate or linear, as long as the tube or much longer, reflexed at anthesis; nectary disk present at apex of ovary. Stamens as many as and alternate with the corolla lobes, staminal filaments short, usually inserted on the corolla tube or throat; anthers attached ca. ⅓ from base, exserted at anthesis in functionally staminate flowers, narrow, somewhat curved, 4–6 mm long, dithecal, opening by longitudinal slits. Ovary inferior, occasionally partly so, or very rarely superior, ca. 4 mm long at anthesis, 2–celled, placentation basal; ovules 1 per cell, erect, anatropous; style as many as carpels, terminal, slender, 4–6 mm long; stigmas 2, 2–lobed, the lobes puberulent on inner surface, divergent in functionally pistillate flowers, appressed in functionally staminate flowers, dry or occasionally wet.

Fruit: Fruit drupaceous; orange; cylindrical to fusiform; broadly ellipsoid; or narrowly and asymmetrically ovoid; 8–18 mm long; 5–8 mm in diameter; usually crowned by the persistent calyx 2–4.5 mm long; pyrenes 1-2(-4); flat on ventral surface; dorsal surface angled; almost triangular in cross section; endocarp usually thick and hard. Seeds 1 per pyrene; usually conforming to the form of the pyrene; with a thin seed coat without invagination; endosperm otherwise not ruminate; carnose; the embryo small with flat; thin cotyledons; seeds with well-developed oily endosperm; or endosperm occasionally scanty or absent.

Ploidy:

Habitat: Occurring in mesic to wet forest.

Elevation Range: 360–1,250 m.

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

Kaua'i Endemic

Dispersal Agents


Pollinators

Bibliography

Name Published In: Proc. Amer. Acad. Arts 7: 170 (1867)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros forest. W/ Cheirodendron, Elaeocarpus bifidus, Melicope clusifolia, Melicope anisata, Scaevola glabra, Leptecophylla tameimeae, Pittosporum gayanum, Astelia argyrocoma. Preserved_Specimen Tree 5 meter ht with flowers and fruit. Fruit immature, flowers white. Perlman, S. 23621 Kauai BISH 2013-08-13
2 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Acacia koa - Metrosideros polymorpha - Dicranopteris linearis montane mesic 10% open, 8-10 m tall canopy, 40% Acacia koa, 20% Metrosideros polymorpha, 20% tall Psychotria mariniana with 5-7 m tall understory canopy of Planchonella sandwicensis, Bobea brevipes merging into up Preserved_Specimen tree, 5 m tall, trunk dark brown-black, fruit orange-red, occasional with the more common P. greenwelliae, P. marinana Wood, K.R. 15120 Kauai BISH 2012-07-25
3 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details N facing slope; mesic forest; Acacia koa, Metrosideros, Myrsine alyxifolia, Bobea brevipes, Pouteria sandwicensis, Pleomele aurea, Dodonaea viscosa, Psychotria greenwelliae, Xylosma hawaiiense, Perrottetia sanwicensis, Hedyotis terminalis, Tetraplasandra, Alphitonia ponderosa, Rubus argutus, Diplazium sandwichianum, Passiflora mollissima Preserved_Specimen 4 m tree; fruit Perlman, S. 18654 Kauai BISH 2003-10-22
4 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Waiahi south branch, north of Kamooloa, headwaters. Open wind- swept shrubland ridges dissected by drainages and patches of low forest 4-7 (-10) m tall, 90-95% cover. Metrosideros ca. 60% with 20% Cheirodendron interpersed with Psychotria, Broussaisia, Tetraplasandra, Kadua, Melicope, Perrottetia, ferns os Dicranopteris, Sticherus, Sphenomeris, Selaginella, Pneuma Preserved_Specimen tree, 3 m tall, common Wood, K.R. 14414 Kauai BISH 2010-12-17
5 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Corn, C. 462 Kauai BISH 1987-06-01
6 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros lowland wet forest w/Antidesma platyphyllum var. hillebrandii, Syzygium sand wicensis, Cheirodendron platyphyllum, Ilex anomala, Dubautia knudsenii, Psychotria mariniana, P. hexandra, P. wawrae, Hedyotis terminalis, Meli Preserved_Specimen Tree up to 6 m, dark black-brown stems, leaves medium green above with white nerves, pale green below, calyx white green, common Wood, K.R. 8075 Kauai BISH 1999-11-28
7 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Cheirodendron-Dicranopteris montane wet, summer mesic forest w/ Polyscias waimeae, P. waialealae, Melicope clusiifolia, M. puberula, Bobea brevipes, Scaevola procera, S. glabra, Elaeocarpus bifidus, Xylosma hawaiiense, Syzygium sandwicensis, Psychotria marinian Preserved_Specimen Tree, 4.5 m tall, well branched, with Kadua foggiana, in flower and fruit, mature fruit orange. Wood, K.R. 16048 Kauai BISH 2014-08-21
8 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Corn, C. Kauai BISH 1987-06-16
9 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Corn, C. 427 Kauai BISH 1987-06-19
10 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Acacia montane mesic forest 70% closed, 18 m. tall canopy, with Bobea brevipes, Dracaena aurea, Antidesma platyphylla, Coprosma waimeae, Psychotria greenwelliae, Cryptocarya mannii, Nestegis sandwicensis, Pisonia sandwicensis, Do Preserved_Specimen tree, 7 m. tall, trunk mottled brown white-green or yellow-brown. Wood, K.R. 15015 Kauai BISH 2012-05-31
11 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Narrow wet gulch w/ Selaginella and moss covered walls. Metrosideros - Dicranopteris - Cheirodendron Wet Montane riparian zone w/ Psychotria hexandra, Platydesma spathulata, Cyrtandra, Syzygium, Leptecophylla, Melicope clusiifolia, Elaeocarpus, Psychotria, Viola wailenalenae, Stenogyne purpurea, Dianella sandwicensis Preserved_Specimen a5 ft tree on side of stream. Trunk densely covered with ferns. Fls white, peduncles green, pendent. Lvs dark green above w/ impressed upward arching veins, below leaf w/ even layer of short hairs light green. Tangalin, N. 2415 Kauai BISH 1920-10-08
12 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Diverse mesic forest with koa & ohia dominant. Acacia koa, Metrosideros polymorpha, Kadua spp., invaded by Hedychium, Psidium Preserved_Specimen small tree 3.5m tall, trunk 8 cm dbh, bark smooth, gray; leaves medium green above, paler beneath; calyx green, corolla white, long style form; fruits green Lorence, D.H. 10465 Kauai BISH 2014-07-13
13 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Dicranopteris Wet Montane Forest. W/Pouteria, Platydesma, Coprosma kauaiensis, Bobea. Preserved_Specimen Tree 15 ft tall. Bark brn w/ wt splotches, trunk, w buldges, stems swelling and green at ends. Lvs dk green above, light green below. Top margin and midrib yellow, lvs folded up, bottom of leaf w/slight pikos and rust on midrib. Flws white, corolla lobes reflexed, calyx green-yellow. Fruit pendent, brown. Tangalin, N. 218 Kauai BISH 2004-08-30
14 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Kauai diverse mesic forest impacted by secondary invasive species with Metrosideros polymorpha var. glaberrima, Chrysodracon sandwicensis, Xylosma hawaiiensis, Diospyros sandwicensis, Diospyros hillegrandii, Planchonella sandwicensis, Rauvolfia sandwicensis, Santalum involut. Preserved_Specimen Tree, 3.5 meters tall, trunk black-brown with flower, corolla white, occasional with Psychotria mariniana. Wood, K.R. 17090 Kauai BISH 2016-08-10
15 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details open windswept shrubland ridges dissected by drainages & patches of low forest 4-7(-10) m tall, 90-95% cover Metrosideros ca. 60% with 20% Cheirodendron interspersed with Psychotria, Broussaisia, Tetraplasandra, Kadua, Melicope, Perrottetia, ferns of Dicranopteris, Sticherus, Sphenomeris, Selanginella, Pneuma Preserved_Specimen tree, 3 m tall, with flower and fruit, common Wood, K.R. 14425 Kauai BISH 2010-12-17
16 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Cheirodendron-Dicranopteris montane wet forest, 8-10 m tall closed canopy, w/ Leptecophylla tameiameiae, Broussaisia arguta, Coprosma kauensis, Perrottetia sandwicensis, Psychotria hexandra, Nertera granadensis, Astelia argyrocoma, Cyrtandra longifolia, Stenogyne purpurea, M Preserved_Specimen Tree, 4m tall, emergent out of Diplazium sandwichianum, w/ immature fruit, occasional. Wood, K.R. 18171 Kauai BISH 2019-05-06
17 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Acacia montane mesic forest with Alphitonia ponderosa, Antidemsa platyphylla, Euphorbia atrococca, Claoxylon sandwicensis, Dodonaea viscosa, Myrsine lanaiensis, Nestegis sandwicensis, Dracaena aurea, Polyscias kavaiensis, Planch Preserved_Specimen tree, 5 m, with flower & immature fruit Wood, K.R. 14947 Kauai BISH 2012-04-26
18 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Ohia Lowland Mesic Forest, with understory of Uluhe, transition between mesic and wet forest types. Metrosideros polymorpha var. glaberrima, Dodonaea viscosa, Coprosma kauensis C. waimeae, Scaevola procera, Psychotria mariniana, Nestegis sandwicensis, Dicranopteris linearis, Diplopterygium pinnatum, Preserved_Specimen Tree 5m tall growin in mid-story of Metrosideros-Dicranopter wet mesic forest. This taxon is common in general area. Infructescences are on slightly pendent pdeuncles, with hard green immature fruits. Williams, A.M. 611 Kauai BISH 2019-10-08
19 Psychotria hexandra Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Acacia montane mesic forest w/ Alphitonia ponderosa, Psychotria greenwelliae, Melicope ovata & M. barbigera, Pouteria sandwicensis, Polyscias kauaiensis, Dodonaea viscosa, Wikstroemia furcata, Leptecophylla Preserved_Specimen Tree, 4 m tall, in flower and fruit, occasional with P. mariniana & P. greenwelliae. Wood, K.R. 16496 Kauai BISH 2015-06-20