28 
In U. S. Geol. Sur. Wyoming and contiguous Territory, 1870, p. 
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A List of Plants collected by C. Thomas in Eastern Colorado and N. 
E. New Mexico during the Survey of 1866. By C. C. Parry, 
M.D. (A.) 
In U. S. Geol. Surv. Wyoming and contiguous Territory, 1870, p. 
484. Washington, 1872. 
Enumeration of the Species of Plants collected by Dr. C. C Parry 
and Messrs. E. Hall and J. P. Harbour, during the summer and 
autumn of 1862 on and near the Rocky Mts. in Colorado Terr., 
latitude 39^ to 41°. By Asa Gray. (C.) 
In Proc. Acad. Nat. Sci. Phila., 1863, p 55. 
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Coulter. (C.) 
U. S. Geol. and Geog. Surv. Terr., Misc. Public, No. 4, 8vo. 
pamphlet. Washington, 1874. • ■ 
The Flora of Southwestern Colorado. By T. S. Brandegee. (B.) 
In Bull. U. S. Geol. and Geog. Surv. Terr., Vol. ii., No. 3, p. 227. 
Washington. 
List of Colorado Musci and Hepatic^e, collected by T. L. Brandegee 
in 1873-75. By E. A. Rau with the assistance of C. F. Austin 
and T. P. James. (A.) 
In Bull. Torr. Bot. Club., vi., 89, May, 1876. 
Colorado Plants. By I. C. Martindale. (B.) 
In Amer. Nat. xiii., 675. November, 1879. 
Grasses of the Plains and Eastern Slope of the Rocky Mountains. 
(B.) Author not given. 
In Dept. Agric. Rept., Washington, 1870, p. 217. 
A catalogue of Plants collected in 1872 in portions of Montana, 
Idaho, Wyoming and Utah. By J. M. Coulter. (C.) 
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Washington, 1873. 
The Great Basin Region. 
Catalogue and Description of Plants collected on Stansbury's Expe- 
dition to the Great Salt Lake. By John Torrey, M.D., (D.) 
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Howard Stansbury, p. 383. Philadelphia, 1852. 
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In Report of Expedition, p. 155. Washington, 1854 
W. R. G. 
N. L. B. 
Spiked form of Cypripedium insigne.— This orchid from Nepal, 
common in cultivation, has usually but a solitary flower on a single 
scape as in our C. acaule. A correspondent sends me one with two 
flowers. It is evident that the flower is solitary only because of the 
suppression of the terminal bud in an inflorescence intended to be 
spicate. Here that bud has overcome retardation and another inter- 
node with a flower has been formed. At this second node another 
