DAISY, DANDELION, AND THISTLE FAMILY 



425 



intended " to keep the cold out," but also to protect it from 

 loss of heat by excessive radiation, to the clear cold skies of 

 winter." 



Genus Gnaphalmm. 



Woolly or cottony herbs. Leaves alternate. Heads small, solitary, fascicled, 

 or in corymbs. Florets all fertile, bracts usually white. Achene small, hairy. 

 Pappus-hairs in 1 series, sometimes united at the base. (Name from the Greek, 

 referring to the wool with which the plants are covered). 10 sp. 



Fig. 1-17. Gnaphaliuin trinerve. 



Gnaphalium luteo-album {The Yelloivish-ivhite Gnaphalium). 



Annual or biennial. Leaves narrow, fin. -2 in. long, woolly, the upper ones 

 without foot-stalks. Heads fascicled, ^in.-^in. long, yellowish-brown. Bracts 

 shining. Achene dotted with pits. Both islands ; Stewart Island. PI. Dec- 

 March. A common weed. 



Genus Haoulia. 



Small, tufted, alpine herbs, often growing in dense masses. Leaves very 

 small, imbricate, often silky or woolly. Heads small, terminal, solitary. 



*v. Trans. XXXH., p. 150. 



