Lake Maxinkuckee, Physical and Biological Survey 231 

 80. TIMOTHY 



PHLEUM PRATENSE L. 



This, the best known and most common of our meadow grasses, 

 is common about the lake, scattered ahuost everywhere in open 

 places. In Hawk's marsh, as is very usual with this species 

 in wet places, the scales of the head grow out into long leaf-like 

 projections giving the appearance of the grain sprouting in the 



head. 



81. MARSH FOXTAIL 



ALOPECURUS GENICULATUS L. 



This is a rather common grass in woodland ponds in the north- 

 ern part of the state, not usually abundant anywhere, but widely 

 distributed. This plant grew rather abundantly in a pond in the 

 Assembly grounds opposite Davis's. 



The heads resemble those of a minature timothy and the leaves 



frequently float on the surface of the water. The conspicuous long 



filaments of the plant when in flower, and the heavy white glaucous 



coating of the stem and leaves, make it a noticeable object. It was 



found in blossom in May. Our examples represent the subspecies 



aristulatus Torr., which is now regarded by some as a distinct 



species. 



82. SHEATHED RUSH-GRASS 



SPOROBOLUS VAGINAEFLORUS Torr. 



An insignificant, starved-looking grass. Found growing scant- 

 ily in the sand back of Arlington, and rather abundant on the 

 railroad between the icehouses and the depot. The small secondary 

 panicles formed in late autumn are concealed within the sheaths 

 of the leaves. 



83. LONG-LEAVED RUSH-GRASS 



SPOROBOLUS ASPER (Michx.) Kunth. 



A good patch of this grass was found in scattered tussocks on 

 the dry slope east of the depot, in the autumn of 1904. They had 

 not been seen in previous years, and bore the appearance of having 

 been introduced, either by the railroad or in a grass mixture used 

 in seeding down the grounds. The species is a tall coarse grass, 

 putting out new panicles from the sheaths of the lower leaves after 

 the first have ripened. 



84. WOOD REED-GRASS 



CINNA ARUNDINACEA L. 



A common, Tather coarse grass found in swampy woodlands 

 throughout the state, conspicuous for the large amount of seed 



