82 THR TASMANIAN FLORA. 



11. ISOETOPSIS. 



Bracts broad, scarious, tlie outer ones passing into a leafy form. Florets 

 tubular, the inner ones sterile. Achenes cylindrical, with a pappus of few well- 

 developed scarious scales. 



Consisting of but one species. 



I. GEAMiNiPOLiA, Turcz. Small, densely tufted. Leaves filiform, with 

 sheathing bases, I ' If inch long. Stems very short, the flower-heads clustered 

 at the bases of the leaves and buried amongst them. 



Domain (Hobart), Cornelian Bay. Possibly introduced. Throughout 

 extra-tropical Australia. Fl. Oct. 



VI. ANGIANTHUS. 



Flower-heads small, few-flowered, with an involucre of a few unequal trans- 

 parent bracts, many heads collected into a compound head surrounded by an 

 irregular involucre of leaf-like bracts. Florets tubular. Achenes slightly 

 compressed. Pappus minute, dentate, or obsolete. 



Limited to Australia. 



A. PREISSIANTJS, B. Annual, very small and erect to much-branched princi- 

 pally at the base, decumbent with ascending tips, mostly white, with woolly 

 hairs. Leaves alternate or sometimes opposite, 1-4 lines long. Flower-heads 

 1-3 lines diameter. j4. eriocepAaZw, B., included; Skir rophor us preusianus, a,ndi 

 eriiicephalus, H. 



Muddy Plains, George Town, Bass Straits ; also throughout extra-tropical 

 Australia. Fl. Nov-Dec. 



1.3. CALOCEPHALUS. 



Heads globular, dense, compound. No common involucre, involucres of the 

 individual oapitulse of few unequal bracts. Florets tubular. Achenes slightly 

 compressed. Pappus of few linear plumose scales. 



Limited to Australia. 



Much-branched. Leaves filiform, j-| inch long ... 1 C.hrownii. 

 Leaves linear, 1-2 inches. 



Heads white ... . ... ... ... ... 2. C lacteus. 



Heads yellow ... ... ... ... ... ... 3, C. citrem. 



1. C. BROWNii, F. V. M. Rigid, much-branched, spreading, 1 foot high, white- 

 Leaves alternate, mostly filiform, \-\ inch long. Heads white, terminating the- 

 branches, \-\ inch in diameter. Leucophyta brorcnii, H. 



George's Bay, North Coast, Bass Strait. Throughout Southern Australia. Fl. 

 spring and summer. 



2. C. LACTEUS, Less. A slender, woody perennial. Stems ascending or erect, 

 usually simple, 1-2 feet long, white. Leaves mostly opposite, linear, blunt, \-i 

 inches long. Compound head, ovoid to globular, j-\ inch diameter, white. 



Brighton, North Coast. Throughout Southern and Eastern Australia. Fl. 

 Nov. -Jan. 



.3. C. ciTEEUS, Less. Close to, and perhaps a variety of, G. lacteus. Leaves 

 very narrow and almost acute. Flower-heads yellow. 



Richmond. Found also in New South Wales, South Australia, and Victoria. 

 PL Nov.-Dec. 



14. CRASPEDIA, 

 Flowers numerous, clustered together in a dense, globular, compound head, 

 surrounded by an involucre of partially scarious bracts. Each flower bearins^- 



