100 T HE SAND STBAND FLOBA 



Cassinia fulvida Hook, f . 



Erect shrub, about 1 m. high, much-branched; branches covered 

 with a yellowish, subviscid tomentum ; leaves narrow, linear, spreading, 

 margins slightly curved, clothed with fulvous tomentum; glutinous 

 above. Midrib obvious below. 



Restricted to New Zealand, where it goes up to 1200 m. from sea 

 level. 



G. retorta A. Cunn. 



Shrub, 1 — 3 m. high, with slender branches, covered with gray 

 tomentum; small, erect, narrow-linear leaves, with recurved margins, 

 underneath covered with whitish appressed tomentum. 



On North Cape, New Zealand. 



Cirsium occidentale Nutt. 



Biennial herb, stout, 4 — 10 dm. high, white with thick coating of 

 cottony wool; leaves pinnatifid, not very prickly, glabrate above, canes- 

 cent beneath; flowers purple. 



Common on established dunes near San Francisco, and follows the 

 coast southward in California, extending inland among hills of coast 

 ranges. 



Corethroffyne obovata Benth. 



Perennial with decumbent stems, 3 — 6 dm. long; leaves 2 — 3 cm. 

 long, obovate, obtuse, toothed above middle, densely white-woolly; disk 

 flowers yellow, ray flowers violet blue. 



On sand dunes of California, from Pacific Grove northward. 



G. virgata Gray. 

 Suffrutescent, erect, 2 — 10 dm. high, branched; herbage woolly; 

 leaves oblanceolate, serrate; disk flowers yellow, ray flowers violet blue. 

 Coast of California. 



G. viscidula Greene. 



Perennial, tall, slender; stem and flowers at flowering time purplish, 

 glandular-scabrous; leaves narrowly-oblaneeolate, acute, serrate, viscid- 

 glandular; disk flowers yellowish-brown; ray flowers violet blue. 



On sand dunes at Monterey Bay, California. 



Cotula coronopifolia L. 

 Small perennial glabrous herb, with succulent, clustered, creeping 

 stems, rooting at the nodes; branches ascending, 10—20 em. high; 



