164 FLORA OF MICHIGAN. 



1641. B. breviaristatus, Thurb. 



First collected on low sand dunes near Bay View, in August, 1879, by C. F. Wheeler. In June, 1881, 

 Prof. V. M. Spalding also collected this species near Charlevoix. The farthest station east known for 

 this grass. 



521. LOLIUM, L. DARNEL. 



1642. IJ. PERENNE, L. Common Darnel. Ray-or Rye-Grass. 

 Macomb Co., Dr. Cooley; Ionia Co., etc. Scarcely naturalized. 



164:-$. L. TEMULENTUM, L. Bearded Darnel. 

 Scarcely naturalized. Flint ; Macomb Co.; 8. Mich., Wright Cat. 



522. AGROPYRUM, Gaertn. 

 *1644. A. repens, Beauv. Couch-Quitch-Quick-or Quack-Grass. Th. 



Cultivated grounds. Varies greatly. Sometimes grows to the exclusion of everything else, and is 

 widespread enough to be considered a pest. 



1645. A. dasystachyum, Vasey. N. & U. P. 



Common at Petoskey; N. W., Winch. Cat.; Oscoda and the sandy shores of the great lakes. 



1646. A. violaceum, Lange. 

 Keweenaw Peninsula, Farwell; Lake Superior, Porter. 



* 1647. A. caiiinum, R. & S. Awned Wheat-Grass. Th. 



S. Mich., Winch. Cat. ; Macomb Co. ; Hubbardston ; northward. 



523. HORDEUM, Tourn. BARLEY. 



*1648. H. jubatum, L. Squirrel-tail Grass. Th. 



Sands. N. shore of Lake Superior, Agassiz ; Sault de Ste. Marie, R. Bell ; Bay City. Infrequent. 



524. ELYMUS, L. LYME-GRASS. WILD RYE. 

 *1649. E. Virginicus, L. Th. 



River banks. A glaucous form occurs on the banks of Cedar River, college grounds. Common. 



*1650. E. Caiiadeiisis, L. Th. 



River banks. Common. 



*1651. var. glaucifolius, Gray. 



Ionia Co. ; Specimens from banks of Red Cedar River, Lansing, measured six feet, with leaves 

 one inch wide. 



*1652. E. striatus, Willd. Th. 



8. Mich., Wright Cat.; Flint; Hubbardston; northward to L. Superior. 



var. villosus, Gray. 

 Flint, D. Clark. 



1653. E. Sibiricus, L., var. Americamis, Gray. U. P. 

 Marquette, Porter in Gray's Manual; Keweenaw Co., F. 



1654. E. mollis, Trin. 



Shores of the Great Lakes, Gray's Manual; north shore of Lake Superior, Agassiz. 



525. ASPRELLA, Willd. 



*1655. A. Hystrix, Willd. Bottle-brush Grass. Th. 



Moist woods. A variety of this grass is found in one locality near Hubbardston with smooth and very 

 glaucous culms, leaves rough, hairy. 



CIX. CONIFERS. P!NE FAMILY. 



526. PINUS, Tourn. PINE. 



*1656. P. Strobus, L. White Pine. Tb. 



Hamburgh. Livingston Co., in the center of the State and northward. Follows the shore of L. 

 Michigan to the Indiana line. Found in a swamp near Constantine. Usually 3 to 4 feet in diameter and 

 100 feet high, but often larger. Furnishes most of the pine lumber of commerce. The tallest white pine 

 we have measured was 134 feet, and the largest diameter, scant 6 feet. Much taller and larger specimens are 

 reported by lumbermen. 



