408 



PLANTS OF NEW ZEALAND 



seed, thus provided with down, may be floated for long 

 distances by the wind. 



Key to the Genera. 



Flowers of the disk not strap-shaped. No milky juice. 



All flowers strap-shaped. Milky juice present. 



Anthers obtuse at the base, or shortly tailed. 



Anthers sagittate at the base, or long tailed. 



Stigmas flattened with marginal rows of papillae, and terminal 

 hairy unreceptive portions. 



Style arms usually truncate, rarely produced into appendages, 

 generally with a crown of long hairs at the base. 



Pappus or obscure. 



Pappus 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 scapes. 



Herbs with solitary terminal'heads. 



Head solitary on a slender peduncle. 



Heads deeply sunk amongst 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. 



Pappus bristles capillary, in 1 series, often slightly united 

 at the base. 



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

 pound with a common involucre. 



Cushion-like, or tufted plants. 



Upright shrubs with alternate leaves. 



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



Pappus of simple bristles. 



Achenes angled, spinulose, and prolonged into a beak. 

 Achenes rounded, narrowed above and not beaked. 



11 

 5 

 6 



Lagenophora, p. 410. 

 Brachyconie, p. 410. 



7 

 10 



OleariaForsteri, p. 415. 

 Olearia, p. 411., 

 Pleurophyllum, p. 417. 

 Celmisia, p. 418. 

 Vittadinia, p. 411. 

 Haastia, p. 423. 



12 



14 



13 



Centipeda. 

 Cotula, p. 434. 

 Abrotanella. 



Brachyglottis, p. 435. 



15 

 Erechtites, p. 434. 



Senecio, p. 436. 

 Helichrysum, p. 430. 



17 



18 



19 



Gnaphalium, p. 425. 



Craspedia, p. 433. 

 Eaoulia, p. 425. 

 Cassinia, p. 433. 

 Picris. 



21 



Taraxacum. 

 Crepis. 



The genera Centipeda, Abrotanella, Picris, Crepis, and. 

 Taraxacum (the dandelion) are not further dealt with. 



