LIST OF HIGHER SEED PRODUCING PLANTS. 193 
Genera: 18; tropical and extratropical. 
Species: 125+; 50-60 fossil; Hocene to Recent. 
ULMUS Linn. Gen. 194 (1737). 
Chaetoptelea Lies. Vid. Med. Kiob. (1850). 
_ Microptelea Spacu, Am. Sci. Nat. 2, XV, 358 (1841). 
Baillon, Hist. Pl. VI, 184; Benth. and Hook., Gen. Pl.-I1I, 351; Durand, 
Ind. Gen. Phan. 373; Engler and Prantl, Nat. Pflanz. 3, I, 62; Schenck, 
Palaeophyt, 470. 
Living species: 16; temperate N. hemisphere; mts. 
in tropical Asia. Hurope, 3; Russia, 8; Russian Europe, 7; 
S. Sts., 5; Rocky mts., 1; HE. Sts., 4; Canada, 3; Pl. Wheel., 1; 
N. America, 6-7. 
Fossil species: Ulmiphyllum, Lower Cretaceous (Fon- 
taine)—Potomac river beds, 3 sp. Ulmus, 30-45 sp. described; 
Eocene, rare; Oligocene atundant—Grinnell-Land, Greenland, 
Saghalin, Japan, Switzerland, Alaska, Colorado (Lesquereaua, 
Saporta, Heer, Unger, Watelet, etc. ). 
Ulmus racemosa THomas, Am. Jour. Sci. Ser. 1, XIX, 170 
(1831). 
U. americana Puancw. DC. Prodr., XVII, 155 (1878) in part. 
Wats. and Coult., Gray’s Man. 6 ed. 462; Britt., Fl. N. J. 216; Mac., Fl. 
Can. 428; Upham, Fl. Minn. 124. 
North America: Q., Ont. to S. W. Vt. and N. J.; W. to 
Minn., Ky. and Mo. 
Minn. valley: Forest district to Chippewa valley; 
infrequent or rare; woods and along streams. 
HERB.: Moyer 220; Cedar lake, near Montevideo. 
Ulmus americana Linn. Spec. 226 (17538). 
U. mollifolia MarsH. Arbust. Amer. 156 (1785). 
U. americana var. pendula AIT, Hort. Kew. I, 320 (1789). 
U. pendula WILLD. Berl. Baumz. 519 (1796). 
U. alba Ra¥F. FI. Lud. 115 (1817). 
U. americana var. scabra Spacw, Ann. Sci. Nat 2ser. XV, 364 
1841). 
U. americana var. bartramiti WALP. Ann. IIT, 424 (1846?). 
U. floridana Cuap. FI. S. St. 416 (1860). 
U. americana var. aspera CHAP. FI. S. St. 416 (1860). 
Wats. and Coult., Gray’s Man. 6 ed. 462; Britt., Fl. N. J. 216; Webb., Fl. 
Neb. 111; Upham, Fl. Minn. 124; Mac., Fl. Can. I. 428; Coult., Fl. Colo. 329; 
Cov., Fl. Ark. 218; Engl., Nat. Pflanz. III, 1, 62. 
North America: Cape Breton, N. S., N. Br., Q., Ont., 
L. Winnipeg to 52° N. lat. on Saskatchewan and L. Waswan- 
apy, N. W. T.; S. to N. Eng., N. J. and Fla. and W. to Kan., 
Neb., Dak., Ark. and head waters of Missouri river. 
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