Holzinger: MOSSES OF MINNESOTA. 293 



137. Amblystej^ium noterophilum S. and L. 



Lanesboro (-7. M. H., Aug., 1894). 



This very distinct species stands in L. and J. Man- 

 ual as a synonym of Ambli/fiteglum irriguum var. spini- 

 folium. Cardot, to whom I submitted it, makes it a 

 new variety of Ainblystegiutn Jluviatile. But the un- 

 equally greater size of the plant and texture of the 

 leaves seem to entitle this moss to specific rank. Its 

 remarkable occurrence, in large, dark green cushions, 

 on limestones covered the year around with swiftly 

 flowing water from a large spring, is worthy of note. 

 It has been collected by Geo. W. Clinton, at Caledonia, 

 N. Y., by C. F. Parker, at York, Pa., by J. C. Porter, 

 at Lancaster, Pa . and by Dr. Sereno Watson, in the 

 Uintah mountains, in the latter locality at 7,000 feet 

 altitute, as is shown by a series of specimens kindly 

 communicated by Mrs. Elizabeth G. Britton. With 

 Dr. Porter s specimen is found some Ariiblystegbiia 

 Jluviatile, and A. Jluviatile also was found in company 

 with the moss at Lanesboro; not, however, in flowing 

 water, but only in a moist situation. Are these two 

 mosses habitually companions? If so, their close 

 affinity, based on leaf areolation, coupled with this 

 fact, suggests that the view of varietal relation has some 

 ground, in spite of the striking difference in appear- 

 ance. 



138. Amblystegium ortliocladon L. and J. 



Winona {J. M. H., June, 1889, and May 29, 1890). 



139. Aiii))lyst02:iiim ripariiim Sch. 



Winona \j. M. H., Oct. 26, 1889); Thompson {J. H. 

 Sandberg, June, 1891). 



140. Amblysto^inin serpens Sch. 



McAlister {J. M. H., Aug. 24, 1889); Stockton {J. M. 

 E., Sept. 21, 1889); Winona {J. M. H., May 31, 1890); 

 Two Harbors {J. H. Sandberg, July, 1891); Poke- 

 gama lake (J. H. Sandberg, June 16, 1891). 



141. Amblystegium variuiu Lindb. 



Trempealeau Mt., Wis. (./. M. K, May 11, 1890). 



142. Hypuuiu elirysopliylliiiu Brid. 



Thompson {J. H. Sandberg, June, 1891). 



