XIV 



Minnesota Plant Life. 



Fig. 38. A tuft of "reindeer moss." Natural size, 2>4 feet in diameter. 

 Age, probably over one hundred years. North shore of Lake 

 Superior. After photograph by Professor Bruee Fink 97 



Fig. 39. A male moss plant. The spermaries are produced in clusters 



at the i:nd of the stem. After Atkinson 125 



Fig. 40. A female moss plant. The egg-organs are inclosed in the tuft 



of leaves at the tip of the stem. After Atkinstjn 125 



Fig. 41. The club-shaped spermary of a moss, much magnitied. and two 



spernicitozoids, \ery highly magnified, .\fter .\tkinson 126 



Fig. 42. Tip of a leafy moss plant, sectioned lengthwise and magnitied. 

 The flask-shaped egg-organs, one with an egg in place, are 

 shown. These bodies are barely visible to the naked eye. 

 After Atkinson 127 



Fig. 43. Mud-fiat liverwort, showing method of growth and branch- 

 ing. After Atkinson 132 



Fig. 44. The uuibrella-liverwort; showing the jirustratc vegetative 

 Ijody, and the upright branches on which the egg-organs are 

 borne, and where later the cai)sular plants will be found 

 I)erching. After Atkinson 136 



Fig. 45. Stem of the umbrella-liverwort, showing the little cups with 

 bodies inside, which are employed by the plant for purposes 

 of propagation. After Atkinson ij^ 



Fig. 46. Road across a peat-bog; tamaracks and bircho in background. 

 Near C.rand Rapids. .Vfter phoingraph by .Mr. \\";irren I'en- 

 derga^t 1 45 



Fig. 47. Peat-moss leafy-plants with capsular-piants imbjJded at the 



tips of short leafless erect branches. After .Atkinson 147 



Fig. 4S. A moss leafy-plant, with pio^lrate i)r()pagali\ e Ijranch and 

 erect female reproductive branch. On the l.itter two egg- 

 organs h;i\e de\eliipcd their t-ggs into capsular plants. (Uie 

 f)f which is ejecting spf)rcs. The two round bodies are spores 

 nnich magnified. .Xfter .\tkinson I53 



