72 



THE TASMANIAN FLORA. 



Xanthiiim. the anthers are not coherent). Fruit dry, with one erect seed. 

 The flowers are minute, and usually many together, gathei-ed into a 

 flower-like capitulum, surrounded by an involucre of bracts. 

 A very large order, of world-wide distribution. 



Section I. Inner florets tubular, outer ones strap-shaped, 

 i. Pappus of long bristles ... 

 Pappus obscure or none ... 

 ii. Flowers all yellow... 



Strap-florets, white or blue 

 iii. Leaves mostly radical 



Leaves dispersed ... 

 iv. Leaves linear, long, white 



Leaves 1^-1 1 inch, green ... 

 V. Trees or shrubs, if small, still with a tough, 

 woody stem 

 Perennial or annual, never hard, woody • ... 

 vi. Outer florets white or bluish 



Outer florets yellow 

 vii. All florets reddish, often very small 



Inner florets yellow 

 viii. Bracts with searious margins 

 Bracts quite herbaceous ... 

 ix. Achenes smooth, nearly straight... 

 Achenes curved, rough 

 Achenes densely woolly ... 



Section II. Inner florets tubular, outer ones longer, more deeply divided, or 

 partially strap-shaped. 



Flower-heads large. Florets yellow, 

 numerous barbed bristles 



Section III. Florets all tubular. 



11. 



V. 



7. 

 iii. 

 iv. 



Nahlonium. 



Pappus of 



19. PodolepiK. 

 Bracts partially or entirely herbaceous, 

 i. Pappus none 



Pappus copious 

 ii. Achenes ^vith 2 horns 

 Florets numerous, yellow 

 Florets few 

 iii. Leaves generally divided. Flowers terminal . . . 

 Leaves entire or toothed. Flower-heads axillary 

 iv. Leaves filiform. Flowers enclosed at their bases 



Flowers terminal above the leaves 

 V. Leaves filiform, white. Achenes linear... 

 Flowers yellow, axillary ... 

 Flowers yellow, terminal... 

 Heads yellow, terminal, compound 



Section IV. Florets all tubular. Bracts considerably or entirely searious 

 i. Pappus conspicuous 



Pappus very small or none 

 ii. Flower-heads spherical, made up of many 

 smaller heads 

 Leave.s minute. Plant moss-like. Pappus of 



few scales 

 Xot so constructed... 

 iii. Flower-heads single 

 Flower-heads clustered 



8. Cotula. 



9. Myriogyne. 

 11. Isoetopsis. 

 10. Abrotanella. 

 17. Millotia. 

 27. Bedfordia. 

 29. Erechthites. 

 14. Craspedia. 



11. 



X. 



13. Calocephalus. 



26. Pterygopappits. 



iii. 



iv. 



vii. 



