Daviesia microphylla Bentham (1864: 86)

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-FE89-D315-FF3C-545F8FB4595C

treatment provided by

Felipe

scientific name

Daviesia microphylla Bentham (1864: 86)
status

 

119. Daviesia microphylla Bentham (1864: 86) View in CoL , Crisp (1995: 1212). Type : ‘W. Australia, Swan River and Darling range, Preiss. n. 1150 and 1155; Drummond , n. 32.’ Lectotype (Crisp 1995: 1212): Drummond 32 (K, ex Herb. Hooker). Syntype: Preiss 1150 (K, ex Herb. Bentham), MEL 79041 View Materials ; isosyntype: BR, FI-W, G (2 sheets), GOET, LD, MEL 79040 View Materials , MO, NY, P (2 sheets), S, W (2 sheets)

Daviesia parvifolia Moore (1920: 168) View in CoL . Type: ‘ Kauring; G.W. Brown (Hb. Stoward, 560).’ Holotype: BM.

[ Daviesia incrassata auct . non Smith (1808b: 255): Meisner (1844: 49). Specimens cited: ‘In limoso-calculosis sylvae prope Halfwayhouse (Darlings-range) 12. September 1839. Herb. Preiss. No. 1150 et in asperis montis Greenmountain (Perth) 26. April 1840. No. 1155.’ Specimens seen: Preiss 1150 (LD, NY); Preiss 1155 (LD).]

Divaricate sprawling shrubs, to 0.6 m high and 1 m broad, glabrous, glossy dark green. Root anatomy unknown. Branchlets divaricate, short (ca. 1–6 cm), angular with sharp ridges in vivo, spinescent. Phyllodes crowded with bases often overlapping along the branchlets, divaricate, vertically compressed, ovate to narrowly so, often slightly oblique, apex acuminate, pungent, marginally thickened with a central depression, base cuneate to truncate, articulate, 2.5–5(–10) × 1–2 mm. Unit inflorescences 1 per axil, 1-flowered; peduncle nil; subtending bracts ascending, hooded, slightly keeled, with apex slightly fimbriate, ca. 0.5–1 mm long. Pedicels 3.5–4.5(–7) mm long. Calyx View in CoL 2.5–3 mm including the ca. 0.75 mm receptacle; upper 2 lobes united in a truncate lip; lower 3 lobes triangular; lobes to 0.5 mm long. Corolla View in CoL : standard round to very broadly elliptic and obovate, emarginate, 8–9 × 8–8.5 mm including the ca. 1 mm claw, with 2 small calli at the base of the lamina, orange with a dark red centre; wings obovate with a rounded and incurved apex, enclosing the keel, auriculate, ca. 8–8.5 × 3 mm including the 2 mm claw, maroon; keel half very broadly ovate with an acicular beak, slightly saccate, ca. 8–8.5 × 2 mm including the 4 mm claw, maroon. Stamens moderately dimorphic: inner whorl of 5 with longer filaments and shorter, versatile anthers; outer whorl of 5 with shorter filaments and longer, basifixed anthers; filaments all compressed, cohering; anthers all 2-celled. Pod obliquely shallowly obtriangular, acuminate, turgid, 11–14 × 6.5–7.5 mm; upper suture straight to slightly upcurved; lower suture 90° to obtuse. Seed not seen. ( Fig. 120 View FIGURE 120 ).

Flowering period:— June to August. Fruiting period: Only specimen fruiting in November.

Distribution:— Western Australia, extant only in the eastern Darling Range and adjacent wheatbelt as far east as Dowerin–Quairading, but recorded in the past from much farther east at Brontie Station, near Koolyanobbing.

Habitat:— Grows on grey sandy loam with gravel or white sand in woodland dominated by Eucalyptus wandoo or in low heath.

Selected specimens (12 examined):— WESTERN AUSTRALIA. Avon: 1 km W of Hindmarsh Rifle Range , 31°19’S, 117°11’E, B. H GoogleMaps . Smith 361, 2 June 1984 ( CBG, MEL); York , 31°53’S, 116°46’E, C. A GoogleMaps . Gardner s.n., November 1920 ( PERTH 5212030 About PERTH ). Darling: ca. 37 km W of Beverley, Qualen Road , 5 km SW of intersection with Gunapin Ridge Road, 32°07’S, 116°32’E, M GoogleMaps . D. Crisp 6721, 26 July 1980 ( CBG, K, NSW, PERTH) .

Coolgardie: Bronti[e Station], 30°56’S, 119°30’E, E GoogleMaps . Salisbury s.n., 7 August 1949 ( PERTH 5148472 About PERTH ) .

Affinity:— Daviesia microphylla is similar to D. chapmanii and D. mesophylla . Daviesia chapmanii can be distinguished by its non-spinescent branchlets, longer phyllodes (10–15 mm long) and paler flowers (yellow to whitish). Daviesia mesophylla may be distinguished from D. microphylla by its procumbent habit, summer flowering period and non-spinescent branchlets.

Hybrids:— D. brachyphylla × D. microphylla (Crisp 6725).

A MONOGRAPH OF DAVIESIA

Phytotaxa 300 (1) © 2017 Magnolia Press • 263 264 • Phytotaxa 300 (1) © 2017 Magnolia Press

CRISP ET AL.

A MONOGRAPH OF DAVIESIA

Phytotaxa 300 (1) © 2017 Magnolia Press • 265

W

Naturhistorisches Museum Wien

B

Botanischer Garten und Botanisches Museum Berlin-Dahlem, Zentraleinrichtung der Freien Universitaet

H

University of Helsinki

CBG

Australian National Botanic Gardens, specimens pre-1993

MEL

Museo Entomologico de Leon

C

University of Copenhagen

A

Harvard University - Arnold Arboretum

M

Botanische Staatssammlung München

K

Royal Botanic Gardens

NSW

Royal Botanic Gardens, National Herbarium of New South Wales

PERTH

Western Australian Herbarium

E

Royal Botanic Garden Edinburgh

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Fabales

Family

Fabaceae

Genus

Daviesia

Loc

Daviesia microphylla Bentham (1864: 86)

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

Daviesia parvifolia Moore (1920: 168)

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