104 THE SAND STBAND FLOBA 



Matricaria inodora L. var. maritima L. 

 Perennial herb, erect or spreading, much-branched, 3 — 5 dm. high, 

 leaves succulent; disk flowers yellow, ray flowers white. 

 Common on the Baltic shores. 



Senecio Colensoi Hook. f. 



Stem erect, simple or much-branched, woody at the base, flexuose, 

 grooved, the whole plant covered with white tomentum. Some are white 

 on both surfaces, others only beneath. On the shore they are fleshy 

 and glabrous. Leaves polymorphic, entire, obovate to lanceolate, nar- 

 rowed into short petioles with broad wings. The leaves vary, however, 

 greatly in form. 



North Island, New Zealand. 



S.,lautus Sol. 



Prostrate, decumbent or erect, glabrous or pubescent, annual or bien- 

 nial, 8 — 60 cm. high; stem and branches stout or slender, grooved; leaves 

 succulent, 2 — 5 cm. long, lanceolate, narrowed into a petiole, pinnatifid. 



A very variable species occurring on coasts of New Zealand, compar- 

 atively seldom inland. 



S. spathulatus A. Rich. 

 Much-branched perennial; leaves obovate, toothed irregularly, the 

 lower petiolate, the upper stemclasping, all fleshy; 2 — & cm. long. 

 Sandy shores in New South Wales (Bondi), Victoria and Tasmania. 



S. silvaticus L. and 8. viscosus L. 

 are not uncommon on sand formations of the Baltic coasts, but are not 

 confined to such situations. 



Solidago spathulata DC. 



Perennial herb, with glabrous, slightly glutinous herbage; stems 

 35 — 45 cm. high, branched at base, decumbent, thickly clothed with 

 broad leaf bases; leaves basal, spatulate, rounded at apex, narrowed to 

 a long marginal petiole, serrate above the middle; flowers yellow. 



On sand dunes at S'an Francisco and Monterey, California. 



Sonchus arvensis L. maritimus G. F. Meyer. 

 Perennial; creeping rootstock; stems 6—10 dm. high; leaves long, 

 pinnatifid, lobes lanceolate, curved downwards, bordered by large prickly 

 teeth; the lower petiolate, the upper stem-clasping; flowers yellow. 



