360 TWENTY-F1K8T KEl'OHT. 



S. atrovircua ftluhl var. pyanocephaluis FeriiaUl. I'arkedale, Augu.st 4, 

 1912, No. 3021. The infloreseuce iu this has been reduced to a glomerate head. 



)S. rubruthiclus Feriiald. This is the old 8. microvarpuii Presl. Keweeuaw 

 oounty, September 12, 1887, No. 549a. 



S. sylvatwus L. Keweenaw ooiinfy, August, 11K.M, No. 1S24 ; Junior, July 

 13, 1918, No. 5079. 



S. Georgianus Harper. Accredited to Michigan in Gray's Manual. 



S'. Cyperinus (L.) Kunth. S. lineatus Mx. and allied species should be 

 removed to Eriophorum. The elongated bristles exclude them from Scirpus, 

 but if they are to be retained in that genus, then all distinctions between it 

 and Eriophorum break down and both should be united. It would be better 

 to restore the old genus Trichophorum for this group of plants than to retain 

 them in Scirpus. 



E. lineatum (Mx.) Bth. & Hk. f. Keweenaw county, August 21, 1890, 

 No. 799 ; Ypsilanti, June 23, 1891, No. 799a ; Detroit, July 21, 1892, No. 799b. 



E. Cyperinum L. Keweenaw county, September 6, 1888, No. 678 ; Detroit, 

 September 15, 1899, No. 678a. 



E. Cyperinum var. pelium (Feruald) O. A. F. Keweenaw county, August 

 8, 1890, No. 756b, and August 15, 1901, No. 1736 ; Detroit, August 4, 1896, No. 

 756c ; Marl Lake, August 13, 1916, No. 4358. 



E. Cyperium var. pelium f. condensatum (Fern.) n. comb. (Scirpus 

 cypcrinus var. condensatus Fernald ; Gray Manual, 195, 1908). Accredited 

 in the Manual to Michigan. 



E. Cyperinum var. laxum Wats. & Coult. {Scirpus Eriophorum Mx. Fl. 

 Bor. Am. I, 33, 1803). Detroit, September IS, 1902, No. 1795, 



E. Cyperinum var. pedicellatum (Fernald) O. A. F. {E. cyperinum var. 

 laxum Wats & Coult. in part). Keweenaw county, August, 1904, No. 1820^^. 



E. Cyperinum var. pedicellatum f. grande n. comb. (Scirpus atrocinctus 

 var. grandis Fernald, and S. pedicellatus var. pullus Fernald. Gray Manual 

 195, 1908). Keweenaw county, August, 1902, No. 1788. 



E. Cyperinum var. atrocintum (Fernald) O. A. F. (E. Cyperinum var. 

 laxum Wats. & Coult. in part). Keweenaw county, July 18, 1890, No. 756. 



E. Cyperium var. atrocinatu.m f. imACiiYPODUM (Fernald) n. comb. 

 (8. atrocinctus var. tmnliiuxxhiK Fernald, Proc. Am. Acad. XXIV, 502, 1809). 

 Keweenaw county. August IS. 1890, No. 75('.a. 



