JJ5(> TWENTY-FIKST IIKPOKT. 



' Agropyron spicatum Scribn. & Sm. {A. Snuthii Rydb. Fl. Mont., 64, 1900; 

 A. occidentale Scribn. U. S. Agrost. Circ. XXVII 9, 1900; A. repeiis var. 

 fflancum Scribn. Mem. Tor. Club. V. 57, 1895). The fact that Scribner & 

 Smith misidentified tlie Festuca spicata of Pursli does not invalidate the above 

 binomial for the species they described, since the binomial always applies to 

 the species descx-ibed. Had those authors based their new combination solely 

 on synonymy (without a description) the name would, perforce, have been 

 a synonym of Pursh's species, the one on which it would have been based. 

 As I understand this species, it is characterized by its glaucous, bluish-green 

 appearance, which makes it stand out boldly and conspicuously from all sur- 

 rounding herbage. Rochester, June 23, 1912, No. 2828 ; Detroit, June 17, 1911, 

 No. 2214b. 



Agropyron spicatum var. virjde, n. var. Larger and coarser than the 

 species with a longer spike and larger spikelets, whole plant pale green, not 

 at all bluish nor glaucous. Detroit, Mich., June 24, 1899, No. 851e ; Keweenaw 

 county, July 3, 1895, No. 851. 



Triticum aestivum L., the Bearded Wheat, is adventive in southern Michi- 

 gan. Detroit, June 17, 1895, No. 842a ; Keweenaw Co., Aug. 1894, No. 842. 



Triticum aestivum var. muticum (Alef. ) n. comb. {Tnticum v-ulgare 

 var, mutiGiim Alef. Landw. Fl. 328, 1806). The Beardless Wheat is adventive 

 in soulhern Michigan. Detroit, .Tune l.'>, 189.^, No. 841a ; Keweenaw county, 

 August, ISJM, No. 841. 



Triticum aestivum var. leucospermum (Korn.) n. comb. {T. vulgare. 

 var. leucospermum Kiirn. System.. Ubers. 10, 1873). Spikes densely velvety; 

 the lemmas are awnless or short awned and velvety pubescent. Roadsfides, near 

 Rochester, June 30, 1912, No. 2799. 



Hordeum vulgare L. Keweenaw county, August, 1894, No. 843; Detroit, 

 July 8, 1905, No. 843a; Houghton, August 28, 1912, No. 3098; Parkedale, 

 August 13, 1909, No. 843b. 



Hordeum vulgare var. distichon (L.) Alef. Parkedale, August 13, 1905), 

 No. 2100a. 



Jlordeum, vulgare \Hv. he..rastiehoii (L. ) Alef. Parkedale, August 13, 1!)09, 

 No. 2100b. 



Secale Cereale, L. Sandy hillsides at Houghton, August 28, 1912, No. 3099. 



Secale Cereale var. vulgare Korn. Belle Isle, June 20, 1893, No. 1373. 



Secale Cereale var. multieaule, Kurn. Rochester, June 8, 1909, No. 1373a. 



