

636 Rydberg : Studies ox the Rocky Mountain Flora 



to find ; but from the route that Nuttall took it is undoubtedly 

 some stream of the Green River system. 



8. Hymenopappus macroglottis sp. nov. 



Slightly tomentose perennial with a woody caudex. Stems 

 several, 3-4 dm. high, striate, slightly floccose when young, with 

 1-3 leaves : leaves mostly basal, about 1 dm. long, bi-pinnately 

 divided into linear lobes 8-25 mm. long, 1-2 mm. wide ; stem- 

 leaves generally simply pinnate or the uppermost simple : heads 

 few, corymbose, 12 mm. high and 12-15 mm. broad, hemispher- 

 ical : bracts oblong, with very narrow yellowish scarious mar- 

 gins : corolla yellow ; tube about 2 mm. long ; throat deeply 

 campanulate, 3-4 mm. long, 3—4 times as long as the lobes : 

 achenes elongated obpyramidal, about 5 mm. long, hirsute : scales 

 of the pappus about 1 mm. long. 



The long and broad lobes of the leaves and the long throat of 

 the corolla distinguishes it from other species of the Rocky Moun- 

 tains. The latter character it has common with only H. lugens 

 Greene from southern California. This has, however, much more 

 finely dissected leaves. H. macroglottis grows in arid regions 

 from Texas to Arizona and north to Colorado or Utah. 



Arizona : Oak Creek, 1883, H* H. Rusby (type). 



New Mexico : 1851-52, Wright, 1252. 



Texas: Camp 42, 1853, Bigelozv, ?jo. 



Colorado or Utah : 1843, Fremont. 





