Daviesia argillacea Crisp (1995: 1171)

Crisp, Michael D., Cayzer, Lindy, Chandler, Gregory T. & Cook, Lyn G., 2017, A monograph of Daviesia (Mirbelieae, Faboideae, Fabaceae), Phytotaxa 300 (1), pp. 448-450 : 448-450

publication ID

https://doi.org/ 10.11646/phytotaxa.300.1.1

persistent identifier

https://treatment.plazi.org/id/A05187DC-FF15-D281-FF3C-56A48AFB5076

treatment provided by

Felipe

scientific name

Daviesia argillacea Crisp (1995: 1171)
status

 

67. Daviesia argillacea Crisp (1995: 1171) View in CoL . Type: Western Australia, Roe, ca. 55 km SSW of Norseman, 5 km from highway towards Peak Charles   GoogleMaps , 32°38’S, 121°29’E, M. D. Crisp 5956, J. Taylor & R. Jackson, 20 September 1979. Holotype: CBG; isotypes: K, NSW, PERTH

Daviesia obtusifolia Mueller (1860: 104) var. parvifolia E.Pritz. View in CoL in Diels & E.Pritzel (1904: 247). Type: ‘Hab. in distr. Coolgardie pr. Gilmores in fruticetis lutosis fruct. m. Nov. (D. 5270)’ (B†). The type is missing, presumably destroyed in the Berlin herbarium during the Second World War ( Hiepko 1987). However, from the description it seems probable that this taxon is conspecific with D. argillacea View in CoL .

Daviesia phyllodinea Moore (1920: 168) var. parvifolia S. Moore (1920: 168) View in CoL . Type: ‘Bruce Rock; Stoward, 469.’ Holotype: BM.

Erect, bushy shrubs, to 2 m or higher, glabrous, glaucescent. Root anatomy with anomalous secondary thickening (cord type) or normal (unistelar). Branchlets ascending, terete, lightly ribbed. Phyllodes fairly crowded, erect, usually narrowly obovate, rarely narrowly elliptic, usually obtuse and mucronate at apex, tapered to base, articulate, 7–22(–35) × 3–6 mm; midrib visible, venation obscure. Unit inflorescences 1(2) per axil, flowers solitary or 2–3 in racemes; peduncle 0.25–2 mm long; rachis 0–1.5 mm long; subtending bracts ascending, spathulate, hooded, ca. 0.75 mm long. Pedicels 1–2.5 mm long. Calyx View in CoL campanulate or tapering, 3.5–4 mm long including the ca. 1–1.25 mm receptacle, dull green with purple margins; upper 2 lobes united in a truncate, emarginate lip, ca. 0.5 mm long; lower 3 lobes triangular, ca. 0.5 mm long. Corolla View in CoL : standard transversely elliptic, emarginate, cordate, 4.5–5 × 5–6.5 mm including the ca. 1.5 mm claw, orange to orange-yellow with a dull red or maroon centre; wings obliquely elliptic, rounded and incurved at apex, scarcely overlapping, auriculate, ca. 4.5 × 2 mm including the 1.5 mm claw, orange with maroon infusion towards base; keel half transversely elliptic, scarcely acute, auriculate, saccate, ca. 4 × 2 mm including the 1.75 mm claw, maroon. Stamens strongly dimorphic: inner whorl of 5 with longer, terete filaments and shorter, round, versatile anthers with confluent thecae; outer whorl of 5 with shorter, compressed filaments and longer, oblong, basifixed, 2-celled anthers; filaments free. Pod obliquely shallowly obtriangular, ± acute, compressed, 5–7 × 3.5–4.5 mm, thin-walled; upper suture strongly sigmoid; lower suture acute. Seed not seen. ( Fig. 67 View FIGURE 67 ).

Flowering period:— July to October. Fruiting period: November.

Distribution:— Southern Western Australia, widespread in the region approximately delimited by Southern Cross, Narembeen, the Pallinup River, Mt Ragged and Lake Lefroy.

Habitat:— Grows in sand, sandy, clayey or gravelly soils over laterite or granite, mostly on flat landscapes in eucalypt woodland or mallee shrubland with understorey shrubs such as broombush ( Melaleuca spp. ) or Dodonaea Miller (1754 : [unpaged]).

Selected specimens (41 examined):— WESTERN AUSTRALIA. Avon: Bendering [41 km from Narembeen along road to Kondinin], 32°24’S, 118°18’E, C. A GoogleMaps . Gardner 9465, 18 October 1949 ( CANB, K, PERTH); ibid., M GoogleMaps . D. Crisp 5518, 27 January 1979 ( CBG, MEL). Coolgardie: Ca. 90 km WNW of Norseman, 8 km E along road from T-junction between Bank Rock and salt lake, 31°57’S, 120°52’E, M GoogleMaps . D. Crisp 5934 et al., 19 September 1979 ( CBG, MEL, NSW, PERTH); 27 km S of Yellowdine, 2 km SE of Pathfinder homestead, 31°32’S, 119°37’E, M GoogleMaps . D. Crisp 5578, 30 January 1979 ( CBG, MEL). Roe : 90 mile tank, ca. 80 km W of Daniell, 32°42’S, 120°44’E, P. G GoogleMaps . Wilson 3183, 15 September 1964 ( AD, CANB, NY, PERTH); 2–4 km S of Dingo Rock , 33°05’S, 122°08’E, W GoogleMaps . Archer 2010908, 20 October 1990 ( CANB, PERTH); Kulin Soak Nature Reserve , 32°32’S, 118°09’S, K. J . Atkins 1368, 23 January 1984 ( CANB); 7 km NE of Clear Streak Well, ca. 65 km SE of Norseman , 32°26’S, 122°27’E, K GoogleMaps . Newbey 7701, 25 September 1980 ( PERTH); ca. 110 km SW of Norseman, 3 km W of Dog Rock , 32°58’S, 121°02’S, M . D. Crisp 6019 et al., 21 September 1979 ( CBG, PERTH); Cape Arid National Park ; 3.9 km N along Balladonia Road from turnoff to Mt Ragged , 33°25’S, 123°25’E, M GoogleMaps . D. Crisp 11061, 12 October 2010 ( CANB, PERTH). Eyre : 5 km NE of Kulin, 32°40’S, 118°09’E, K GoogleMaps . Newbey 1525, 21 October 1964 ( PERTH); 8 km N of Chillinup Pool on Pallinup River , 34°17’S, 118°37’E, M GoogleMaps . D. Crisp 5143, 14 January 1979 ( CBG) .

Affinity:— This species is readily recognised in Western Australia by its phyllodes alone: no other Daviesia there has phyllodes that are flat, narrowly obovate or elliptic, non-pungent, small (mostly 7–25 mm long), somewhat glaucous, with a single nerve (midrib) and unthickened margins. The phyllodes of D. lancifolia may appear similar but are more or less pungent and the plant is procumbent or prostrate. Phyllodes of D. grahamii and D. newbeyi may also appear similar, but have thickened margins, and additionally the calyces are 5-ribbed. The habit of D. argillacea is erect, and its calyx is not ribbed. Daviesia emarginata may also appear similar; in fact, D. argillacea was formerly

A MONOGRAPH OF DAVIESIA

Phytotaxa 300 (1) © 2017 Magnolia Press • 155 156 • Phytotaxa 300 (1) © 2017 Magnolia Press

CRISP ET AL.

included under this species, as D. obtusifolia var. parvifolia . However, D. emarginata usually has larger, emarginate phyllodes and very different flowers, notably with a white-dotted calyx and an elongated, stipe-like receptacle that is as long as the body of the calyx. In floral and fruit characters, as well as the flat, non-pungent phyllodes, D. argillacea resembles D. mimosoides and related species in eastern Australia. However, these have either larger phyllodes ( D. mimosoides and D. suaveolens ), or more than two flowers per raceme ( D. buxifolia and D. elliptica ), or both.

C

University of Copenhagen

A

Harvard University - Arnold Arboretum

CANB

Australian National Botanic Gardens

K

Royal Botanic Gardens

PERTH

Western Australian Herbarium

M

Botanische Staatssammlung München

CBG

Australian National Botanic Gardens, specimens pre-1993

MEL

Museo Entomologico de Leon

E

Royal Botanic Garden Edinburgh

NSW

Royal Botanic Gardens, National Herbarium of New South Wales

S

Department of Botany, Swedish Museum of Natural History

W

Naturhistorisches Museum Wien

P

Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants

G

Conservatoire et Jardin botaniques de la Ville de Genève

AD

State Herbarium of South Australia

NY

William and Lynda Steere Herbarium of the New York Botanical Garden

J

University of the Witwatersrand

NE

University of New England

N

Nanjing University

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Fabales

Family

Fabaceae

Genus

Daviesia

Loc

Daviesia argillacea Crisp (1995: 1171)

Crisp, Michael D., Cayzer, Lindy, Chandler, Gregory T. & Cook, Lyn G. 2017
2017
Loc

Daviesia phyllodinea Moore (1920: 168) var. parvifolia S. Moore (1920: 168)

Moore, S. L. M. 1920: )
1920
Loc

Daviesia obtusifolia Mueller (1860: 104) var. parvifolia E.Pritz.

Mueller, F. J. H. von 1860: )
1860
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