308 XXXIX. COMPOSITAE. [Helichrysum. 



12. HELICHRYSUM, Vaill. 

 Involucre cylindrical ovoid or hemispherical, the bracts imbricating in 

 several series, the tips often radiating and petal-like. Receptacle without 

 scales, flat convex or conical. Outer florets few, mostly filiform, female. 

 Disk-florets hermaphrodite, tubular, 4-5 toothed. Anthers sagittate at the base. 

 Style-branches nearly terete, usually truncate. Pappus-hairs simple or barbel- 

 late. Herbs or small shrubs, with alternate leaves, tomentose below or on both 

 surfaces. Heads solitary or corymbose. 



A large genus, oomprising about ^80 species, distributed through most temperate and tropical 

 regions, but the species are very local. All the New Zealand species are endemic. 



Name, from the Greek, supposed to have been applied to a European species. 



I. Xbeochlaena. Involucre broad, hemispherical, the outer broad bracts sessile, gradually passing 

 into the inner, with scarious linear claws and radiating tips. Achenes glabrous or pubescent. 

 Perennial herbs, sometimes slightly woody at the base. 



* Stems prostrate, very slender. 

 Heads solitary on bracteate peduncles or sessile . . . . . . . . 1. H, belUdioides. 



Heads 3-7, in small cymes or corymbs . . . . . . . . . . 2. S. Purdiei. 



** Stem very slender, erect, 4in-8in. high. 

 Leaves small. Heads terminal, solitary .. .. .. ..3. H.filicaule. 



*** Stem tufted, Sin.-4in. high. Leaves woolly. 

 Flowers in small terminal corymbs . . . . . . . . . . i. H. Sinclairii. 



**** Stems lin.-iin. high, densely tufted. Leaves imbricating all round the stem. 

 Leaves silvery, densely imbricating, erect. Heads 1-4 towards the apex of 



the stem . . . . . . . . . . . . .. 5. H. fasciculatum. 



Leaves woolly. Heads solitary, terminal, sessile . . . . . . 6. H. Toungii. 



Leaves densely tufted, silky. Head deeply sunk amongst the apical leaves . . 7. H. Loganii. 



II. OzOTHAMNUS. Small shrubs, with terminal oymose or solitary heads. 

 * Leaves flat. Heads cymose. 

 Leaves suborbicular or ovate . . . . . . . . . . . . 8. H. glomeratum. 



Leaves lanceolate . . . . . . . . . . . . .. 9. H. lanceolatum. 



* * Leaves imbricate. Beads solitary, terminal. 

 Heads free, sessile. 

 Leaves in about 6 series, linear, hoary or silky . . . . . . .. 10. S. depressum. 



Leaves in about 4 series, keeled and polished at the back . . . . . . 11. fl'. microphyllum. 



Leaves in 6-8 series, keeled and shining at the back . . . . .. 12, S. Selago. 



Heads deeply sunk amongst the apical leaves. 

 Leaves in many series, broadly obtuse and convex at the back . . . . 13. H. coralloides. 



Leaves in many series, silvery ; margins recurved . . . . . . li. H. pauciflorum. 



III. Leontopodioides. Leaves silvery, densely imbricating. Heads small, in dense terminal cymes, 



subtended by woolly foliaoeous bracts. 

 Leaves liuear-oblong ; tips erect . . . . . . . . . . 15. H. Leontopodium. 



Leaves oblong-spathulate ; tips recurved . . . . . . . . 16. if. grandiceps. 



1. H. bellidioides, Willd., Sp. PI. iii. 1911 {EUchrysum). Stems 

 slender, prostrate, slightly woody at the base, 6in.-20in. long, much-branched. 

 Leaves loosely imbricating or rather distant, ^in.-Jin. long, spreading or 

 recurved, flat or concave, ovate-spathulate or obovate-spathulate, subacute or 

 apiculate, 1-nerved, glabrous above, white beneath or on both surfaces with 



