Daviesia nudiflora Meisner (1844: 53) subsp. hirtella Crisp (1995: 1216)

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

40d. Daviesia nudiflora Meisner (1844: 53) subsp. hirtella Crisp (1995: 1216) . Type: Western Australia, Darling, 10 km N of Regans Ford , 30°55’S, 115°39’E, M. D. Crisp 6460, 15 July 1980. Holotype: CBG; isotype: PERTH

Branchlets terete, ribbed, muricate to hispidulous on branchlets, sometimes also on phyllode margins, ± viscid on pedicels and pods. Phyllodes produced only at and shortly below branchlet apex, spreading at 45–60°, reduced to scales on lower portion of branchlets, elliptic to oblong, somewhat folded upwards along the midrib, apically acuminate, pungent, abruptly contracted to the inarticulate base and decurrent but with node-like thickenings on midrib and marginal nerves, 10–40 × 5–16 mm, yellow-green to glaucous; venation visible, muricate. Unit inflorescences mostly in axils of scale-leaves rather than phyllodes. Corolla : standard transversely broadly elliptic, 9–10 × 8–10 mm including the claw. Pod obliquely very shallowly obtriangular, 11–12 × 5–8 mm. ( Fig. 39E ).

Distribution:— Western Australia, north of Perth, from the Kalbarri area south to Regans Ford and inland towards Corrigin.

Selected specimens (24 examined):— WESTERN AUSTRALIA. Avon: 8 km SE of Badgingarra , 30°24’S, 115°33’E, A. S . George 2599, 19 June 1961 ( PERTH). Irwin : 18 km W of Arrino, 29°25’S, 115°22’E, C . Chapman (48)77, 21 August 1977 ( CBG, PERTH); 1 km S of Marchagee , 30°04’S, 116°04’E, M . D. Crisp 6486, 16 July 1980 ( CBG, MEL); 37 km from Coorow towards Green Head , 30°02’S, 115°47’E, C . Chapman (10)76, 4 July 1976 ( CBG) .

Affinity:— This subspecies is obviously similar to subsp. nudiflora and is distinguished mainly by the 3 thickenings at the base of the phyllodes, one on each nerve; also, it frequently has hispidulous branchlets, whereas subsp. nudiflora always appears glabrous, though is muricate under magnification. The other two subspecies are distinguished by having phyllodes developed all the way along the branchlets.

Figures

FIGURE 39. Daviesia nudiflora, Part 2, comparing branchlets of all four subspecies. A. Daviesia nudiflora subsp. amplectens (from Crisp 6690). B–D. Daviesia nudiflora subsp. drummondii. (B from Drummond 133, type of synonym D. nudiflora var. lanceolata; C from Drummond coll. II no. 227, type of basionym D. drummondii; D from Crisp 6203). E. Daviesia nudiflora subsp. hirtella (E from George 2599). F, G. Daviesia nudiflora subsp. nudiflora (F from Phillips WA/68-723; G from Crisp 6531). Drawn by B-J. Osborne. Adapted from Crisp (1995) with permission from CSIRO Publishing.