44 



Muhlenbergia, Volume 7 



A NEW CASTILLEJA FROM THE SOUTHERN 

 ROCKY MOUNTAINS* 



By p. C. Staxdley and J. C. Blumer 



^ Castilleja austronioiitaua 



[Rhexifoliae Rydb.) Perennial from a light yellow, fleshy, 

 semi-tuberous but divided root, this in age becoming dark and 

 coarsely fibrous: stems 25 to 35 cm. high or sometimes even 

 larger, usually several from each root, slender, generally simple 

 but sometimes branched rather sparingly above or even near the 

 base, sparingly or densely hirsute below, puberulent or scabrous 

 or short-hirsute above, more or less villous in the inflorescence; 

 leaves linear to linear-lanceolate, the uppermost usually lanceo- 

 late or wider, the lower commonly with only one conspicuous 

 nerve, the upper manifestly 3-nerved, bright green, acute, nar- 

 rowed or partly clasping at the base, glabrous above, scabrous 

 beneath or puberulent or the lowest hirsute at least along the 

 veins: flowers numerous, in a spike finally 10 cm. long or more, 



^ 



Figure 7. \ An upper bract. 2 Calyx opened. 3 Corolla. 4 Mature 

 capsule. All natural size. 



on pedicels i to 2 mm. long: bracts entire or with two broadly 



linear lateral teeth, or rarely with i or 2 additional shorter ones, 



lanceolate to broadly oblong, obtuse or acutish, 15 to 30 mm. 



long, usually 20 to 25 mm., the upper ones scarlet for mo.st of 



their length, light green at the base, sparingly villous along the 



margins, the veins yellowish-green where they extend up into 



*Published hv permission of the Secretary of the .Smithsonian Institution. 



