Daviesia decurrens Meisn. subsp. hamata (Crisp) Crisp & G.Chandler, 2017

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

95b. Daviesia decurrens Meisn. subsp. hamata (Crisp) Crisp & G.Chandler , comb. et stat. nov.

Basionym: Daviesia hamata Crisp (1995: 1198) . Type: Western Australia, Avon , Quairading , 32°00’S, 117°24’E, M. D. Crisp 6610, 20 July 1980. Holotype: CBG; isotypes: L, NSW, PERTH.

Differs from subsp. decurrens in having shorter (to 15 mm), narrower (to 2 mm), terete, rigid, scarcely decurrent phyllodes and striate (in vivo), terete branchlets. ( Fig. 96 ).

Distribution:— Western Australia, from Marchagee south to Brookton and east to Gnarlbine, south of Coolgardie. Occurring farther inland than the typical subspecies.

Habitat:— Grows in sand to clayey sand on undulating to flat terrain to granite outcrops, in low to tall heathland dominated by genera such as Allocasuarina and Acacia .

A MONOGRAPH OF DAVIESIA

Phytotaxa 300 (1) © 2017 Magnolia Press • 217

Selected specimens (21 examined):— WESTERN AUSTRALIA. Irwin: 7 km S of Marchagee , 30°07’S, 116°03’E, M . D. Crisp 6492, 16 July 1980 ( CBG, K, PERTH). Avon : 3 km SW of Quairading, 32°01’S, 117°22’E, M . D. Crisp 6181, 27 September 1979 ( CBG); Wattengutten Hill , 27.5 km ESE of Wongan Hills town, 30°58’S, 116°59’E, M . D. Crisp 6678, 23 July 1980 ( AD, CBG); Tammin , 31°38’S, 117°29’E, C. A . Gardner 12441, 16 July 1960 ( PERTH); Brookton , 32°22’S, 117°00’E, C. E . Woolcock D 85, 21 July 1981 ( CBG). Coolgardie: Near Gnarlbine , 31°09’S, 120°57’E, R . Helms s.n., 12 November 1891 ( MEL 0072483 A, PERTH 5188946 ) .

Figures

FIGURE 96. Daviesia decurrens subsp. hamata. A. Flowering branchlet. B. Inflorescence. C. Pod. A, B from Crisp 6610 (type); C from Crisp 6181. Drawn by B-J. Osborne. Adapted from Crisp (1995) with permission from CSIRO Publishing.