Victorian Plants. 305 



Vestiture velvet-like. 



Shrub, rather tall ; leaves from elliptical to cordate-ovate, 

 imperfectly indented, scantily beset with hairlets above ; 

 headlets of flowers rather large, conspicuously stalked, 

 few or two together or solitary ; floral ray usually white ; 

 fruits beset with hairlets. A. dentatus. 



1382. Headlets of flowers arranged in corymbs. 



From rather dwarf to finally very tall, often riparian ; 

 leaves from quite small to comparatively large, mostly 

 lanceolar, occasionally verging into a narrow elliptic or 

 ovate form, distantly indented or denticulated, usually 

 much wrinkled above,. closely beset with stellular hairlets 

 beneath ; headlets of flowers rather small, conspicuously 

 stalked, often forming corymbs ; floral ray white ; fruits 

 beset with hairlets. A. stelltilatus. 



Headlets of flowers arranged in spike-like racemes. 



Desert-shrub, rather tall and slender ; leaves small, linear, 

 revolute at the margin, beset with hairlets underneath ; 

 headlets of flowers copious, slender ; involucre hemi- 

 ellipsoid, somewhat yellowish outside ; floral ray white ; 

 fruits beset with appressed shining hairlets. 



A. Mitchelli. 



BRACHirCOTOE. 



1383. Corollas of marginal flowers with exceedingly minute 



expansions. 



An annual dwarf desert-plant ; leaves pinnatifid, the lobes 

 acute ; headlets of flowers small ; fruit obovate, flat, the 

 surrounding membrane cleft into hooked lobes ; pappus 

 absent. B. coliina. 



Corollas of marginal flowers with long flat expansions, 

 forming a ray ... ... ... ... ... 1384 



1384. Expansions of marginal corollas yellow. 



Perennial desert-plant, beset with short glandule-bearing 

 hairlets ; leaves mostly at the lower portion of the stem 

 only, elliptic-cuneate, notched at the upper end ; fruit 

 brownish, compressed, surrounded by a fringed mem- 

 brane ; pappus conspicuous. B. 



Expansions of marginal corollas white or bluish ... 1385 



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