N.S. Lander, Olearia (Asleraceae: Astereae) 
147 
subsessile; by its involucral bracts, which arc 6-7 rather than 3-5-seriate; and by its pappus, which 
comprises 31-40 rather than 39-65 bristles. 
Olearia incondita Lander, sp. nov. (Figure 3) 
Species nova ad Oleariam sectionem Merismotrichum pertincns; foliis diminutis, dispersis, 
anguste ellipticis, dense pustulatis, incrassatis, integris, revolutis facile distinguitur. 
Typus: Near Morawa, Western Australia, 15 June 1969, A.M. Ashby 2855 (holo: PERTH; iso: AD). 
Shrub to 1.3 m high. Vestiture of vegetative surfaces with long, multicellular, uniseriate, simple 
eglandular hairs and short, uniseriate, capitate glandular hairs. Stems erect and somewhat 
spreading, tomentose and brown or green when young, glabrous and dark green when older. Leaves 
alternate, scattered, ascending, sessile; lamina narrowly elliptic, 4-14 x 1-3 mm, concolorous, green, 
uniformly densely pustulate; venation obscure apart from midrib; vestiture weakly tomentose 
abaxially, glabrous adaxially; texture incrassate; base narrowly cuneale; margin enure, revolute; 
apex acute, inconspicuously mucronate. Heads terminal, solitary, subsessile with leaves grading 
into the involucral bracts, conspicuously radiate, 25-35 mm diameter; disc 10-20 mm diameter. 
Involucre hemispheric; bracts 4-seriate, 4.0-10.5 x 1. 5-2.0 mm. Outer involucral bracts linear or 
narrowly elliptic, more or less flat; stereome uniformly while-tomeniose abaxially; margin entire; 
apex acute. Inner involucral bracts linear, somewhat cymbiform; stereome green, smooth and with 
an apical tomentose patch abaxially; margin membranous, fimbriate; apex acuminate, purplish. 
Receptacle convex. Ray florets 7-10, uniseriate, female, 9.8-12.5 mm long; tube glabrous; limb 
linear or ovate, 2.0-2.5 x 7.8-10.0 mm, white or pink, glabrous, acute and minutely 3-lobed apically; 
staminodes absent; stylar arms filiform, 2. 7-3.6 mm long. Disc florets 10-24, bisexual, buccinate, 
8.0-9. 5 mm long, yellow, subglabrous with multicellular, biseriate, simple eglandular hairs and 
glandular hairs adaxially; lobes 5, 0.8-1.6 mm long, acute; anthers 2.5-3.0 mm long, basally acute 
and shorter than the filament collar, with narrowly triangular, sterile terminal appendage; filament 
collar 0.5-0.6 mm long; stylar arms oblong, with narrowly half-ovoid, sterile terminal appendages 
bearing botuliform collecting hairs above the stigmatic lines. Achene narrowly obovoid, somewhat 
flattened, 3.0-6.6 x 0.8-1. 0 mm, pale brown, hirsute with duplex hairs and glandular hairs, 
conspicuously ribbed; carpopodium central or somewhat oblique. Pappus biseriate, with 74-102 
minutely barbellate bristles more or less equal to the tubular florets, and several much shorter ones 
c. as long. 
Flowering period. January to April. 
Distribution. Endemic to the South-West Botanical Province of Western Australia occurring in the 
Avon and Roe Botanical Districts between 29-35° S and 1 16-120° E (Figure 8). 
Habitat. Found on margins of playa lakes and around granite outcrops. 
Conservation status. Although this species is widely distributed it has been little collected, 
occurring only in small populations restricted to specific habitats in areas likely to experience 
changes in land use which would threaten its survival. It thus appears to warrant the category 3V in 
the coding system of Leigh et al. (1981). 
Other specimens examined. WESTERN AUSTRALIA; Princess R[oyal] Harbour, May 1868, s.leg. 
(MEL); King George Sound, anno 1892, M. Cronin (MEL); 39 km N of Lake King, H. Demarz 
8709 (KPBG, PERTH); Swan River, anno 1899, J. Lewele s.n. (MEL); King George Sound, s.dat., 
G. Maxwell s.n. (MEL); Golden Valley, anno 1888, E. Merral s.n. (MEL); Broomchill, April 1904, 
A. Morrison s.n. (K); Bromehill, Nov. 1904, A. Morrison s.n. (PERTH); N of Avon location 24133. 
30° 55’ S, 117° 22’ E, B.II. Smith 577 (CBG, MEL, PERTH); 9 km W of Dukin, 30° 57’ S, 1 17 d 
52’ E, P.G. Wilson 11875 (PERTH); 15 km W of Dukin, 30° 57’ S, 117° 20’ E ,P.G. Wilson 11878 
(PERTH). 
