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Flora of Australia Online

Banksia praemorsa Andrews, Bot. Repos. 4: t. 258 (1802)

Banksia marcescens R.Br., Trans. Linn. Soc. London 10: 208 (1810), nom. superfl. ; Banksia marcescens var. praemorsa (Andrews) Colla, Hortus. Ripul. 18 (1824), nom. illeg. ; Sirmuellera praemorsa (Andrews) Kuntze, Revis. Gen. Pl. 2: 582 (1891). T: cultivated at the Royal [Botanic] Gardens, Kew, 1802, raised from seed collected at King George Sound, [W.A.], Sept.–Oct. 1791, A.Menzies ; neo: BM, fide A.S.George Nuytsia 3: 347 (1981).

Illustrations: C.E.Rosser & A.S.George, Banksias I: pl. 11 (1981); A.S.George, Banksia Book 129, 130, fig. 29, pl. 49 (1984).

Shrub to 4 m, without lignotuber. Bark rough, flaking. Stems tomentose. Leaves scattered; petiole 2–5 mm long; lamina narrowly cuneate, 2–6 cm long, 7–21 mm wide, truncate; margins flat, obtusely serrate; both surfaces tomentose-hirsute, glabrescent except fine pits in lower surface. Inflorescence on short lateral branchlet or terminal, 10–27 cm long; involucral bracts tomentose-hirsute. Flowers red-maroon where exposed, otherwise pale greenish yellow, pink inside; limb greenish; rarely all yellow. Perianth 29–39 mm long including limb of 4–5 mm, glabrous. Pistil curved, 30–40 mm long, glabrous; pollen presenter cylindrical, 1 mm long, obscurely ribbed. Old flowers long-persistent. Follicles narrowly elliptic, 18–20 mm long, 6–9 mm high, 7–10 mm wide, warted, glabrous. Seed obliquely obovate, 20–22 mm long; seed body 10–11 mm long, 6–8 mm wide, slightly rugose on both sides. 

Restricted to the south coast between Albany and Bald Is., W.A. Found on coastal dunes, sometimes overlying granite or limestone, in kwongan. Flowers Aug.–Nov. Map 214.

W.A.: Isthmus Bay, Torndirrup Natl Park, A.S.George 14380 (PERTH); Bald Is., May 1963, G.M.Storr (PERTH).

Killed by fire and regenerates from seed. Follicles mostly opening with fire, splitting from stylar point. Related most closely to B. media which has serrate leaves with somewhat recurved margins, gold and brown flowers and pubescent perianth claws.

(A.S.George)

 

Data derived from Flora of Australia Volumes 16 (1995), 17A (2000) and 17B (1999), products of ABRS, ©Commonwealth of Australia