BY J. H. MAIDEN AND R. T. BA.KER. 
591 
shining above, but with less asperity than //. diosmifolium, 
about 6 "' long, cottony white underneath. 
Flower heads hemispherical or slightly turbinate, rather larger 
than those of H. diosmifolium but less than those of //. decurrens, 
numerous in a terminal corymb. 
Involucre hemispherical, under 2 lines in diameter, the bracts 
obtuse, concave, all the outer ones scarious, straw-coloured, with 
scarcely spreading tips, the inner circle yellow with paler tips. 
Florets about 25-30. Achenes hairy. Pappus-bristles serrulate, 
not thickened upwards. 
Hob. — Murrumbo, G-oulburn River, N.S.W. 
Analysis to show cognate species : — 
Involucral bracts with concave, erect or loose but not spreading 
obtuse tips, all or the inner ones white or pink. 
Leaves not decurrent Florets 20 H. diosmifolium. 
Involucral bracts more or less scarious, obtuse, without any or 
with scarcely conspicuous white tips. 
Involucre ovoid-turbinate, narrow. 
Florets about 15. Leaves 
shortly decurrent II. bracteolatum. 
Involucre hemispherical. Florets 
25 to 30. Leaves shortly 
decurrent H. brevidecurrens. 
Involucre hemispherical. Florets 
35 to 40. Leaves very decur- 
rent //. tesselatum, sp.nov. 
As will be seen in the analysis, it has greatest affinities with 
//. bracteolatum, whilst it also approaches H. tesselatum in the 
general resemblance of the involucre, but differs from it in the 
shortly decurrent and more numerous leaves and smaller flower 
heads. From H. adnatum it is distinguished by the shape of the 
involucre and number of florets, and the pappus-bristles being not 
thickened upwards, and its larger heads. 
