408 



PLANTS OF NEW ZEALAND 



seed, thus provided with down, may 

 distances bv the wind. 



be floated for lon<j 



Key to the Genera. 



Flowers of the disk not strap-shaped. No milks' juice. 



All flowers strai>shaped. Milky juice present. 



Anthers obtuse at the base, or shortly tailed. 



Anthers sagittate at the base, or long tailed. 



Stigmas flattened with uiai'ginal rows of papillae, and terminal 



hair^' unreceptive portions. 

 Stylearms usualb' truncate, rarely produced into appendages, 



generallj' with a crown of long hairs at the base. 

 Pappus or obscure. 

 Pa.ppus present. 



Achenes contracted into a short beak. 

 Achenes obtuse or truncate. 

 Achenes rounded or slightly flattened. 

 Achenes much flattened. Ray-florets in 2 or more series. 

 Shrubs or trees. 

 Herbs with radical leaves. 

 Florets 1. 



Florets more than 1. 



Herbs with heads on erect racemose scaj^es. 

 Herbs with solitary terminal heads. 

 Head solitary on a slender peduncle. 

 Heads deeply sunk an:iongst the apical leaves. 

 Pappus 0, or abortive. 



Achenes usually crowned with a bristly pappus. 

 Heads pedunculate, or mossy alpine herbs. 

 Heads axillary, sessile, not mosslike herbs. 

 Heads pedunculate. 



Alpine herbs with sessile or sub-sessile heads. 

 Outer florets small, two lipped. Anthers shortly tailed. 



Shrubs. 

 Outer florets filiform, ligulate or tubular. 

 Herbs, outer florets in two or three series, filiform. 

 Herbs or shrubs, inflorescence terminal, outer florets 



ligulate or tubular. 

 Anthers sagittate. 



Anthers usually with long, slender tails. 

 Annual or perennial herbs. 

 Shrubs, cushion like, or with alternate leaves. 

 Pai)pus bristles capillary, in 1 series, often slightly united 



at the base. 

 Pappus hairs as long as the florets, plumose, head com- 



Ijound with a common involucre. 

 Cushion-like, or tufted plants. 

 Upright shrubs with alternate leaves. 

 Pajipus, or at least some of it, of plumose bristles. 

 Pap])us of simple bristles. 



Achenes angled, sitinulose, and prolonged into a beak. 

 Achenes rounded, narrowed al:)ove and not beaked. 



2 

 20 



3 

 16 



11 



5 



6 



Lagenophora, i). 410. 



Brachycome. p. 410. 



7 



10 



OleariaForsteri, p. 415. 

 Olearia, p. 411. 

 Pleuroj^hyllum, p. 417. 

 Celmisia, p. 418. 

 Vittadinia, p. 411. 

 Haastia, p. 4-23. 



12 



14 



13 

 Centipeda. 

 Cotula, ]). 434. 

 Abrotanella. 



Brachyglottis, p. 435. 



15 

 Erechtites, p. 434. 



Senecio, p. 4.3(). 

 Helichrysum, p. 430. 



17 



18 



in 



Gnaphalium, p. 425. 



Cras]iedia, p. 433. 

 Raoulia, p. 425. 

 Cassinia, p. 433. 

 Picris. 



31 

 Taraxacum. 

 Crepis. 



The genera Centipeda, Abrotanella, Picris, Crejns, and 

 Tara.racKvi (the dandehon) are not further deah witJi. 



