New Plants from Colorado 



By George E. Osterhout 



y Allium rubrum 



Bulbs single or few in a cluster 2.5-3 cm - x I ~ I -5 cm -> fibrous- 

 coated : scape 2-3 dm. high, round, smooth, and glaucous, exceed- 



ing the leaves : leaves about four, 7 mm. wide or narrower, con- 



; the spathe spherical, not acuminate, breaking into th 



cave 



valves as the bulblets enlarge, followed by three or four flowers, 

 the bulblets subspherical, red, seldom leaf-bearing : ovary not 

 crested : the perianth segments 6-7 mm. x 4 mm., narrowly 

 ovate, obtuse, the outer marked by a dark median line, the pedi- 

 cels 1 cm. long, the filaments equaling the perianth and equaled 

 by the style. 



I have sent out a few specimens of this as Allium Canadense y 



to which I think it has not a close resemblance. Collected in 



j 



9, 1896 (no. 1 321). 



urn 



I 



Bulbs single or few in a cluster, 1.5 x I cm., the outer coats, 

 fibrous: scape 1-1.5 dm. high, round, smooth and tapering up- 

 wards, shorter than the leaves : the leaves slender, 5 mm. wide or 

 narrower, concave : the spathe oblong, acuminate, the acumination 

 often recurved : umbel of several whitish ovate bulblets and flow- 

 ers, the bulblets usually breaking through the base of the spathe, 

 which is divided into two valves by the opening flowers : pedicels 

 rather stout, 7-9 mm. long : perianth segments ovate-acuminate, 

 9 mm. x 5 mm., the tip recurved : filaments equaling the perianth 

 and equaled by the style : ovary not crested. 



Collected in sandy soil on the bank of Chama River at Chama, 



j 



Artemisia Coloradensis 



An herbaceous perennial from creeping rootstocks, the larger 

 plants 3 dm. high, strict, usually not branching above the base, 

 white with a close tomentum, the leaves becoming darker on the 

 upper surface : lower leaves pinnate with usually five slender 

 divisions of the upper half, 2-2.5 cm - long and the divisions 1 cm. 

 long, the edges revolute ; upper leaves less divided and the bracts 



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