THE TASMANIAN FLORA. 83 



3-8 florets, and surrounded by an involucre of several scarious bracts, the receptacle 

 of each flower bearing bracts or scales amongst the florets. Pappus of narrow- 

 linear scales, or more or less plumose bristles. 

 A small Australian and New Zealand genus. 



C. EiCHEA, D. C. A tufted perennial, in the typical form more or less covered 

 with white tomentam. Stem simple, erect, often 1 foot high. Leaves mostly at 

 the base of the stem, oblong to lanceolate, narrowed and sheathing at the base, 

 3 or 4 inches long, stem leaves becoming smaller and narrower. Common 

 flower-head, solitary, nearly globular, ^-1 inch diameter. General involucre of 

 about 10 oblong, partially scarious bracts somewhat shorter than the head, the 

 bracts subtending the individual flowers similar, but more scarious. Flowers 

 bearing 6-8 florets, the involucral bracts thin and transparent, gradually passing 

 into the scales of the receptacle. C. macrocephala and alpina, H., included. 



Very common. Throughout extra-tropical Australia. Fl. Oct.-Jan. 



16. CASSINIA. 



Flowers small and numerous. Bracts many, overlapping, scarious or coloured. 

 Receptacle bearing scarious chaffy scales between the florets. Florets few, 

 tubular. Achenes short, angular or terete. Pappus of numerous fine, simple, 

 or denticulate bristles. 



A genus of plants closely allied to Ozothamnus, Melichrysum, and Helvpterum. 

 Differing from Ozotkamnus chiefly in bearing scales on the receptacle. It is 

 principally Australian, but has representatives in New Zealand and South 

 Africa. 



Shrubs. Leaves linear to lanceolate. 



Leaf margins revolute. Corymbs mostly loose ... 1. C. aculeata. 

 Leaf margins I'ecuxved. Corymb rather dense ... 2. C. longifolia. 

 Herb. Leaves large and broad ... ... ... 3. C. spectabilis. 



1. C. ACTILBATA, R. Br. An erect, branched shrub. Leaves narrow- linear, 

 scabrid above, woolly-white beneath, the margins usually revolute, |-2 inches 

 long. Flowers very numerous, in loose terminal corymbs, about 1\ line long. 

 Bracts of the involucre many, unequal, the outer small, scale-like, and pale brown, 

 the inner petal-like and white, without spreading tips, all blunt. Florets many, 

 each one subtended by a scale as long as and similar to the involucral bracts, 

 only narrower. Achenes usually papillose. 



Very common, and often mistaken for Ozothamnus rosmarinifolius, from which it 

 can be easily recognised by not having the spreading tips to the inner involucral 

 bracts of that shrub. It occurs throughout South-Eastern Australia. Fl, Dec. 



2. C. JjONGIfolia, R. Br. A small, erect, branched shrub. Leaves linear- 

 lanceolate, acute, the upper surface smooth, the lower woolly-white, margins 

 recurved. Flowers about 2 lines long, numerous, in a rather dense terminal 

 corymb. Bracts similar to those of C. aculeata, only usually all white. Florets 

 seldom more than 8. 



Bay of Fires ; also in New South Wales, Victoria, and Queensland. Fl. Dec. 



3. C. spiDCTABiLis, R. Br. An erect, robust herb, of 3-5 feet, with a woody 

 stem. The stems and under surfaces of the leaves woolly- white. Leaves oblong, 

 stem-clasping, 4-6 inches long. Flowers about 2 lines long, very numeroas, in a 

 loose terminal panicle. Bracts blunt, straw or pale brown. Florets numerous. 

 Achenes ribbed. Apalochlamys hillardieri, Hook. 



Vai-ious places in the north. Bass Straits, Swanport, Three Hut Point ; also 

 in Victoria and South Australia. Fl. Dec. 



