Schiedea kauaiensis H. St. John

Wagner, Warren L. & Weller, Stephen G., 2025, A realigned taxonomy for the Schiedea kauaiensis – S. perlmanii species pair (Caryophyllaceae) based on recent collections and new analyses that require nomenclatural changes for both species, PhytoKeys 254, pp. 113-123 : 113-123

publication ID

https://doi.org/10.3897/phytokeys.254.148438

DOI

https://doi.org/10.5281/zenodo.15091664

persistent identifier

https://treatment.plazi.org/id/45EF2FDD-6ED5-5E81-B841-D55735648E6A

treatment provided by

PhytoKeys by Pensoft

scientific name

Schiedea kauaiensis H. St. John
status

 

Schiedea kauaiensis H. St. John View in CoL , Phytologia 64: 177. 1988.

Figs 1 View Figure 1 , 2 View Figure 2 , 3 View Figure 3

Schiedea nuttallii var. pauciflora O. Deg. & Sherff View in CoL in Sherff, Bot. Leafl. 7: 6. 1952. Type. Hawaiian Islands, Kaua‘i: Forest Reserve, ridge behind Papa‘a, 16 Jan 1952, O. Degener & A. B. Greenwell s. n. (holotype: F- 1451309, F- 1451310, originally mounted on a single sheet [photo: F!], but now on 2 sheets [photos: F!]; isotypes: B! BISH- 2 sheets!, F!, K, NY- 2 sheets!, PH- 2 sheets!, US- 2 sheets!).

Schiedea nuttallii var. lihuensis Sherff View in CoL , Bot. Leafl. 9: 3. 1954. Type. Hawaiian Islands, Kaua‘i: [southeastern Kaua’i] “ mauka of Gap?, near Lihue, ” 1911, J. M. Lydgate s. n. (holotype: BISH-501710 !, photo: F!, isotypes: BISH- 2 sheets!)

Schiedea wichmanii H. St. John View in CoL , Phytologia 64: 178. 1988. Type. Hawaiian Islands, Kaua‘i: Limahuli Valley, E wall, 60 ° slope, locality on dark soil and loose rock with remnant ‘ Ohi‘a, Eugenia View in CoL , Uluhe , Santalum View in CoL [pyrularium A. Gray], Diospyros View in CoL , Psychotria View in CoL , and Hibiscus View in CoL , 1300 ft [395 m], 13 Sep 1978, S. Perlman & C. Wichman, Jr. 219 (holotype: BISH-522858 !; isotype: BISH!, PTBG!). [Sterile specimens, flowers liquid preserved.]

Schiedea perlmanii W. L. Wagner & Weller View in CoL , Syst. Bot Monogr. 72: 71. 2005. Type. Hawaiian Islands, Kaua‘i: Mt. Ha‘upu, near Queen Victoria’s profile, W of head of Victoria, Diospyros-Metrosideros lowland mesic forest, 1700–1950 ft [515–590] m, 27 Feb 1992, S. Perlman 12614 (holotype: US- 3252201!; isotypes: AD, BISH!, PTBG!).

Type.

Hawaiian Islands, Kaua‘i • Wainiha-Manoa ridge , wet forest near edge of pali, 2000 ft [610 m], 30 Jul 1977, C. Christensen 290 (holotype: BISH-522854 !) .

Description.

Vine; stems 6–12 dm long (in cultivation eventually to 15 dm or more long), sprawling when young to reclining when longer, at least sparingly branched, internodes deep purple or purplish green, glabrous throughout, except bracts, sepals, and sometimes the pedicel sparsely short-puberulent. Leaves opposite; blades 4–11.5 cm long, 2–2.8 cm wide, narrowly ovate or lanceolate to elliptic-lanceolate, weakly glossy, green or yellowish green, sometimes purple-tinged, especially on lower surface, weakly coriaceous and rubbery, chartaceous when dry, with only the midvein evident, the midvein ± slightly excentric, usually reddish purple, margin entire, slightly thickened and becoming revolute toward the base, apex acute to acuminate; petioles 0.8–0.9 cm long, purple, weakly ± grooved. Inflorescence terminal, with 40–60 flowers, 20–35 cm long and nearly as wide, diffuse, laterally-directed or pendent, the tertiary and higher level internodes or pedicels weakly spreading; bracts subulate, the lowermost of central axis narrowly elliptic, falcate, green and purple-tinged or purple, the lowermost ones 2–17 mm long, those of branches and flowers 1.5–4.5 mm long, purple, the adaxial surface puberulent; pedicels 13–15 mm long at anthesis, weakly flattened, very weakly angled just below the flower and often sparsely short-puberulent. Flowers hermaphroditic, usually pendent. Sepals 2.2–3 mm long, elongating to 4 mm long in fruit, ovate, green, sometimes purple-tinged toward apex or irregularly purple throughout, opaque, strongly reflexed and convex in the proximal 1 / 4, producing a conspicuous transverse bulge, the distal part broadly navicular, oriented at 5 ° to 30 ° angle to the pedicel, abaxial side sparsely puberulent toward the base, the adaxial side puberulent, primarily near the midrib, margins conspicuously scarious, ciliate, apex attenuate, inconspicuously slightly twisted. Nectary base 0.7–0.9 mm long, yellow, the nectary shaft 4.5 mm long, gently recurved, at 90 ° angle to the axis, apex deeply bifid to ca. 1 / 2 their length. Stamens 10; filaments dimorphic, the antisepalous whorl 6.2–6.3 mm long, the alternate whorl 5 mm long; anthers 0.75–0.8 mm long, subequal, pale yellow. Styles 3. Capsules 2.5–2.8 mm long, ovoid. Seeds ca. 1.2 mm long, orbicular-reniform, compressed, the surface rugose. Chromosome number unknown.

Distribution.

(Fig. 3 View Figure 3 ). Kaua‘i, known from mesic shrubland in four disjunct areas on windward Kaua‘i: 1) near the summit of the Hoary Head Mountains (Ha‘upu), 2) from a collection from above Papa‘a made over 50 years ago and more recently Moloa‘a Forest Reserve, Anahola, 3) as well as Wainiha, Limahuli, and Manoa valleys, and 4) from an old collection of a population in Wahiawa Mountains (Hi‘i Mts) in the central region; ca. 400– 640 m.

Specimens examined.

Hawaiian Islands. Kaua‘i: Koloa District: Hi‘i Mts., s. d., Lydgate s. n. ( BISH). Lihue District: Ha‘upu summit, slopes of N facing side near top, [21°55'33.6"N, 159°24'1.9"W], Perlman et. al. 12917 ( PTBG), Wood et al. 18289 ( PTBG), Wood et al. 18449 ( PTBG); Mt. Ha‘upu, N facing cliffs above Kipu, between Queen Victoria’s Profile and Mt. Ha‘upu summit, Perlman 17563 ( BISH, NY, PTBG, US), Wood et al. 11435 ( PTBG); Mt. Ha‘upu, slopes above Kipu ranch, to W of Queen Victoria’s Profile, Perlman 17439 ( PTBG), 17449 ( PTBG); windward Ha‘upu, just E of Ha‘upu Peak, Kipu, below “ Queen Elizabeth’s [Queen Victoria’s] Profile, ” Warshauer 1184 ( BISH). Kawaihau District: Moloa‘a Forest Reserve, near Kawalumakua Peak [22°09'14.4"N, 159°20'08.4"W], Wood et al. 14705 ( PTBG), [22°09'19.9"N, 159°20'31.1"W], Wood et al. 14718 ( BISH, PTBG, US), Wood et al. 14719 ( PTBG), Tangalin 3361 ( PTBG). Hanalei District: Manoa valley, above falls in valley to East of Limahuli, 530 m, Perlman et al. 23977 ( PTBG); Wainiha valley, on ridge 1300 ft. S of Kulanaililia, top of ridge, [22°12'20.5"N, 159°34'5.1"W], Christensen 317 ( BISH); Limahuli Valley, E wall, 60 ° slope, locality on dark soil and loose rock with ‘ Ohi‘a, Eugenia, Uluhe , Santalum [pyrularium A. Gray], Diospyros , Psychotria , and Hibiscus , 1300 ft [395 m], 16 August 1978, S. Perlman & C. Wichman, Jr. 218 ( BISH); Lower Limahuli valley, up subgulch on W side of valley [22°13'02.9"N, 159°34'59.6"W], Perlman & Bender 17370 ( PTBG).

Cultivated specimens.

Kaua‘i: Ha‘upu summit, slopes of N facing side near top, Perlman et. al. 12917 [cult. Wagner & Shannon 6795] ( BISH, GH, NY, PTBG, US); SE portion of Moloa‘a Forest Reserve, Anahola upper gulch [22 ° ’ 15 " N, 159 ° 33 " W], Heintzman KP 06012199 ( US); from a cutting from Upper Manoa Valley, Heintzman KP 05052302 ( PTBG), Wood & DeMotta 18282 ( PTBG).

F

Field Museum of Natural History, Botany Department

K

Royal Botanic Gardens

BISH

Bishop Museum, Botany Division

PTBG

National Tropical Botanical Garden

AD

State Herbarium of South Australia

NY

William and Lynda Steere Herbarium of the New York Botanical Garden

US

United States of America

GH

Harvard University - Gray Herbarium

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Caryophyllales

Family

Caryophyllaceae

Genus

Schiedea

Loc

Schiedea kauaiensis H. St. John

Wagner, Warren L. & Weller, Stephen G. 2025
2025
Loc

Schiedea perlmanii

W. L. Wagner & Weller 2005: 71
2005
Loc

Schiedea wichmanii

John 1988: 178
1988
Loc

Schiedea nuttallii var. lihuensis

Sherff 1954: 3
1954
Loc

Schiedea nuttallii var. pauciflora

Schiedea nuttallii var. pauciflora O. Deg. & Sherff in Sherff, Bot. Leafl. 7: 6. 1952. Type. Hawaiian Islands, Kaua‘i: Forest Reserve, ridge behind Papa‘a, 16 Jan 1952, O. Degener & A. B. Greenwell s. n. (holotype: F- 1451309, F- 1451310, originally mounted on a single sheet [photo: F !], but now on 2 sheets [photos: F !]; isotypes: B! BISH- 2 sheets!, F !, K , NY- 2 sheets!, PH- 2 sheets!, US- 2 sheets!).