Contributions from the Herbarium of Columbia 
No. to, 
No. 11, 
No. 12. 
No. 13. 
No. 14. 
No. 15. 
. No. 16, 
No, 17 
. 
No, 18, 
College. 
A Preliminary List of North American Species of Cyferus, with Descriptions 
of New Forms. By N. L. Britton (1886),......... 25 cents. 
Cerastium arvense, L., and its North American Varieties. By Arthur Hol- 
lick and N. L, Britton (1887). (Out of print.) 
Plant Notes from Temiscouata County, Canada. By J. I. Northrop (1887). 
~ (Out of print.) 
A List of Plants Collected by Miss Mary B. Croft at San Diego, Texas. By 
N. L. Britton and H. H. Rusby (1887),.........5-> 25 cents. 
New or Noteworthy North American Phanerogams. By N. L. Britton 
CIBBS) 8 a ee ee . . 25 cents. 
An Enumeration of the Plants Collected by Dr. H. H. Rusby in South 
America, 1886-1887. By N. L. Britton. (Twenty-three parts published ; 
not yet completed.) 
The Genus Hicoria of Rafinesque. By N. L. Britton (1888), . . . 25 cents. 
A Recent Discovery of Hybrid Oaks on Staten Island. By Arthur Hollick 
VOROON ee geek pe ee 25 cents. 
A List of Plants Collected by Dr. E. A. Mearns at Fort Verde and in ‘the 
Mogollon and San Francisco Mountains, Arizona, 1884-1888, By N. L. 
Britton. 
The General Floral Characters of the San Francisco and Mogollon Mountains 
and the Adjacent Region. By H. H. Rusby (1888),. . . .. 25 cents. 
Contributions to American Bryology—An Enumeration of the Mosses Col- 
lected by Mr. John B. Leiberg in Kootenai County, Idaho. By Elizabeth 
G. Britton. (Out of print.) 
Preliminary Notes on the North American Species of the Genus 7issa, 
Adans.: By N. 1. Briton (1880), . os ek ek 25 cents. 
The Genus £ieocharis in North America. By N. L. Britton (1889), 
25 cents. 
New or Noteworthy North American Phanerogams, II. By N. L. Britton 
UE a eee ees . . + 25 cents, 
A List of State and Local Floras of the United States and British America. 
By ND, Benda fideo: Po eee ee $r. 
A Descriptive List of Species of the Gena Heuchera. By Wm. E. Wheel- 
Ok (Beds ce a ee 25 cents. 
New or Noteworthy North Aiedoids Phanerogams, III. By N. L. Britton. 
(1890), Be SE ee Py ee, cee ede Be te 2 Sr ad Seen ee re 25 cents. 
The Flora of the Desert of Atacama. By Thos. Morong (1891), 
25 cents. 
Contributions to American Bryology, Il. A supplementary Enumeration of 
Mosses collected by Mr. John B. Leiberg in Kootenai County, Idaho. By 
Elizabeth G. Britton (1891), he poe ees 8 ay Rae so BS COO. 
