222 AMERICAN MIDLAND NATURALIST 



(Deam); [Lake Co.] (Deam); Nos. 3325, 3318, St. Joseph, Mich. 

 (Tidestrom); Nos. 811, 2800, Notre Dame; 10367 Chain Lakes 

 (St. Joseph Co.). Observed in all the counties. 



Populus heterophylla Linn., Sp. PI. 1034, (1753)- 



Ai^iros lictcrophyllos Raf. Alsog. p. 42, (1838). 



Lake Maxinkuckee (H. Wl Clarke). Found by Dr. Greene 

 and myself southwest of South Bend in low ground not far from 

 the Sumption Prairie Road. Also in Berrien Co., Mich. 



AIGEIROS Homer, Odyss, VH, 106, XVII: 208 Hesiod, 

 Scut. Here. 377 Theophrastus, III: 14: Dioscoridcs, i.: 144. 



Populus Vergil, Pliny, Tour., Linnaeus in part Aigeiros 

 Tidestrom, Elysium., Mareanum, I., p. 15, (19 10) not Aigiros 

 Raf. Alsog. Am. p. 42, ( iSt,8) = Popuhis heterophylla Linn. 



Aigeiros deltoides (Bartr.) Tidestrom. Elysium, Marianum, 

 II. p. 16, (1910). 



Populus deltoides Bartr; Marsh., Arb. Am. p. 106, (1785) 

 Popuhis canadensis Moench. Weisents. p. 81, (1785) Populus 

 marilandica Poir. in Lam., Encyc. Suppl. 4: p. 378, (1816)? 

 Populus monilifera Ait., Hort. Kew. 3 p. 406, (1789) Populus 

 angulata 1. c. p. 407, Populus carolinensis Moench, Verz. PI. Si, 

 (1789), Aigeiros virginiana. Tm. 1. c, Populus virginiana Fouger, 

 Mem.Soc.Ag.Par. 1786, 87. (17S7) 



Nos. 3343, 3401, St. Joseph, Mich. (Tidestrom); Lake Max- 

 inkuckee (H. W. Clarke), (Deam); No. 475, St. Joseph, Mich., 

 450, 1 1 159, Notre Dame. I have seen it in every county. 



Aigeiros nigra (Pliny). 



Populus nigra Pliny, Nat. Hist. XVII: 23, XVI.: 23, Ruellius 

 Nat. Stirp., p. 277, (1543), also Matthioli, Camerarius, Dodonaeus, 

 Pempt. p. 836, C. Bauhin, Pin. p. 429, Tour. Els. p. 465, (1694), 

 I. R. H. p. 592, (1700), etc., etc. Populus nigra Linn., Sp. PI. 

 p. 1034, (1753)- 



Sometimes cultivated and may escape, though the following 

 which bv some is considered but a variety is oftcner found. 



Aigeiros italica (Duroi) Tm., 1. c. 



Populus italica Moench, Weisenst. p. 79, {Populus nigra 

 italica Duroi, Harbk. Baumz. 2: p. 141, (1772); Populus pyra- 

 midalis Roz. Cours. d'Agric. 7: p. 619; Populus dilatata Ait., 

 Hort. Kew. 3, p. 406. 



Found throughout the range, but perhaps always in culti- 

 vation or near houses. 



