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BOTANICAL GAZETTE 



Specimens examined: Assiniboia: Crane Lake, June 15, 1894, John 

 Macoun (5807); Wyoming: Fort Steele, Carbon County, June 16, 1900, 

 AvenNelson (7257); Chug Creek, June 29, igoo, Aven Nelson (7302); Laramie, 

 Albany County, June 10, 1900, Aven Nelson (7269); Utah: Carter Dugway, 

 Uintah Mountains, July 19, 1902, Leslie N. Goodding (1410). 



3. Lappula cenchrtjsoides A. Nels. Bull. Torr. Bot. Club 

 26:243. 1899. — Greene (loc. cit) states that this is a synonym of 

 L. Fremontii. It is much nearer a Lappula of Asia. L. cen- 

 chrusoides is low, bushy branched, with the pubescence so scanty 

 that the herbage has a clear green hue, giving an aspect that is 

 entirely different from that of the strict gray-pubescent L. Fremontii. 

 The fruits, too, are much larger and are not mature until late 

 August or September, long after L. Fremontii has dried away. 

 The only specimens we have seen are from sandy canyons in the 

 Laramie Hills. These are identical with specimens of the Asian 

 L. semiglabra (Ledeb.) Gurke, except that the prickles are in two 



4a. Lappula RedowSkii (Hornem.) Greene var. occidentalis 

 (Wats.) Rydb. — This variety has always been supposed to be con- 

 fined to North America. It is, however, impossible to distinguish 

 the Siberian specimens referred to the species by Ledebour, 

 DeCandolle, and others. Hooker (Fl. Brit. India 4:163) gives 

 what seems to be the correct range for the species. Hornemann 

 (Hort. Hafn. 1:174) stated that the original was sent from Moscow 

 and purported to have been collected in "Imperio Ruthenico," 

 probably somewhere in Southwestern Russia. The supposed 

 differences in branching break down completely, but the repeatedly 

 described fruiting differences are well marked. 



There is another interesting variation of the species that has 

 been collected in this country on ballast. This is L. patula (Lehm.) 

 Aschers. Watson (Bot. King Exped. 246. 187 1) gives a some- 

 what exaggerated figure but a good presentation of its diagnostic 

 characters. He writes "differs from E. Redowskii only in the 

 tuberculations upon the fruit, which are few in number and arranged 

 regularly in longitudinal rows upon the back and upon the outer 

 edge of the sides." Some of the specimens are separated from L. 

 Redowskii only with difficulty. Hooker as long ago as 1885 (Fl. 

 Brit. India 4*163), in a note after E. Redowskii, wrote "perhaps 



