No. 54. 
No. 55. 
No. 56. 
No. 57. 
No. 58. 
No. 59. 
No. 60. 
No. 61. 
“No. 62. 
No. 63. 
No. 64. 
No. 65. 
No. 66. 
Contributions to American Bryology, I1I.—Notes on the North American 
Species of Orthotrichum. By Elizabeth G. Britton, . . . . 25 cents. 
New Genera of Plants from Bolivia. By H. H. Rusby (1893), . 25 cents. 
The Altitudinal Distribution of the Ferns of the Appalachian Mountain Sys- 
WE TO ee (ESOS ys ke a aS ee 25 cents, 
Notes upon various Species of Iridacez and other Orders. By Thomas 
POON CIO ie ih ok whe ak ok fee a A we 25 cents, 
Notes on the Flora of Southeastern Kentucky. By T. H. Kearney, Jr. 
RAs ets he Pe ep We ety SMO e eyes . . 25 cents. 
Contributions to American Bryology, IV. Notes on the North American 
ROE CEB OO ie Os ee AEC re 
Plants from Virginia, new to Gray’s Manual Range with Notes on other 
eee ee cy. 
SME EO ie ok Se, . . 25 cents. 
Contributions to American Bryology, V._Notes on the North American 
Species of Weissia (Ulota). By Elizabeth G. Britton (1894), 25 cents. 
A Study of the Scale-characters of the Northeastern American Species of 
Cuscuta. By W. D. Matthew (1893), . tre ee : . 25 cents, 
A Study of the Genus Psora/ea in America. By Anna Murray Vail 
ft Mineo Me oaks Cw ich aCe : .., 25 cents, 
Contributions to American Bryology, VI. Western Species of Orthotrichum. 
PR i ee iw 
92 ea ee ORL ee 
25 cents. 
A Revision of the Genus Zechea. By N. L. Britton (1894), . . 25 cents. 
New or little known Plants of the Southern States. By T. H. Kearney, Jr. 
RO pik ees Ghats) Wb pias 4: ok eae 25 Gente: 
A Contribution to the History of the Formation of the Lichen Thallus. By 
hart Ge Cate CAR i oe ‘ 25 cents. 
Pe tant a Oe eM Me Me dae Oy i ag Ogee pl gs ee Oe 
Te nck es a5 cents: 
Two Species of Oxalis. By John K. Small (1894) .. . . . 25 cents. 
Notes on some of the rarer Species of Polygonum. By John K. Small 
ee hee ek ep pat ren ena ee een eine rg 25 cents. 
Some new Florida Plants. By T. H. Kearney, Jr. (1894), . . . 25 cents. 
i 
The series as above listed will be supplied for $10. 
Copies of the Catalogue of Plants found in New Jersey (1889) by N. L. Britton, 
may be had for $2. 
Address 
PROF. N. L, BRITTON, 
Columbia College, 
NEW YORK CITY. 
