366 PHANEROGAMOUS PLANTS. 



than those of the male, but obtuse or obtusish, Bentham's A. ar- 

 gentea (also collected in California by Dr. Bigelow) is a variety with 

 somewhat larger heads and broader leaves, especially the lowest, 

 verging towards the ambiguous var. pulcherrima, Hook., of A. Car- 

 pathica, which appears to have the bristles of the male pappus more 

 strongly clavate than in the European A. Carpaihica. In A. hizuloides 

 the enlargement is still greater. 



6. Antennaria alpina, Gcertn. 



Yar.? stenophylla : caidibusfloridis spithamceis foliossimis ; foliis angus- 

 tissime elongato-linearibus cano-lanuginosis. 



Hab. Between Spipen River and the north fork of the Columbia. — 

 This is to the ordinary A. alpina nearly what A. hizuloides is to the 

 European A. Carpathica. The fuscous involucre is that of A. alpina; 

 the male pappus, as in that species, moderately thickened upwards ; 

 but the stems and leaves are very white with appressed wool ; the 

 former leafy to the top ; the leaves all remarkably long and narrow, 

 even the lowest less than a line wide and fully three inches long. 



7. Antennaria dimorpha, Torr. & Gray. 



Antennaria dimorpha, Torr. & Gray, Fl. 2, p. 431. 



Gnaphalium ( Omalotheca, Heterophania) dimorphum, Nutt. in Trans. Amer. Phil. 

 Soc. n. ser. 7, p. 405. 



Yar. flagellaris : caudice sirnplici inter folia stolonesfiliform.es primum 

 erectos emittente. 



Hab. Between Spipen River and the north fork of the Columbia, 

 Washington Territory ; the male plant of the ordinary form, and 

 (scantily) the female of the var. flagellaris. — Nuttall describes the A. 

 dimorpha as stoloniferous ; but we have seen only creeping rootstocks, 

 except in the remarkable specimens here characterized. Except for 

 those slender and naked runners, about three inches long, the plants 

 appear to be only A. dimorpha, less tufted than usual, perhaps younger, 

 and laxer. The female pappus is deciduous in a ring, as in Antennaria. 

 At first sight this variety seems to be wholly distinct, but probably is 

 not so. 



