237] FLORA OF COLUMBIA AND VICINITY 95 



looa. E. pectinacea spectabilis Gray. 

 The larger and more glabrous form. 

 Range of the type. 



lOi. E. trichodes (Nutt.) Nash \_£. temcis Gray]. 



Dry light soil; frequent. 



Ohio to New Mexico (New England according to Dr. 

 Beal). 



102. E. hypnoides (Lam.) B. S. P. [E. reptaiis (Michx.) 

 Nees: N. hyptioides (Lam.) Bush]. 



Rare along the muddy shores of the waterworks dam; 

 common along the Missouri. 



Vermont to Oregon south into the tropics. 



47. EATONIA Raf. 



103. E. obtusata (Michx.) Gray. 

 Dry soil; infrequent. 



Massachusetts to AssiNiBOiA and Oregon; Florida to 

 Arizona. 



104. E. Pennsylvanica (DC.) Gray. 



Common along streams: there occurs in woods a slender 

 form closely simulating E. nitida (Spreng.) Nash. 



New Brunswick to British Columbia; Georgia to Texas. 



104 a. E. Pennsylvanica major Torr. 

 Rich grounds. 

 Range of the type. 



48. KOELERIA Pers. 



105. E. cristata (L.) Pers. 



One plant on the summit of a rocky ledge at the north- 

 west corner of the waterworks dam, June 1903. 



Ontario to British Columbia; Pennsylvania to Califor- 

 nia: Europe and Asia. 



49. MELIOA L. Melic grass. 



106. M. mutica Walt. 



Moist rocky ledges in shade; uncommon. 

 Pennsylvania to Wisconsin; Florida to Texas and 

 Colorado. 



