Periodical Literature. 
XXXI 
Pharmaceutische Rundschau. Vol. VIII. 
Wescheke : An Enumeration of the Medicinal Plants of the State of 
Minnesota. 
Pittonia. Vol. II ( continued ). 
Greene : Analogies and Affinities. III. 
: On some North American Ranunculi. 
— — - — : Schizonotus and Solanoa. 
Lemmon : New Californian Plants. 
Greene : New or noteworthy species, VII. 
Millspaugh : Contributions to North American Euphorbiaceae, II. 
Greene : New or noteworthy species, VIII. 
Popular Science Monthly. 
Vol. XXXVII. 
No. 3. Halsted : Observations upon Doubling of Flowers. 
„ — Ro barts : Rice and its Culture. 
Vol. XXXVIII. 
No. 1. Sargent : The Root-tip. 
„ 2. Halsted : Prairie Flowers of Late Autumn. 
Proceedings of the Academy of Natural Sciences of Philadelphia. 
1889, Part III. 
Redfield : Note on Finns Banksiana. 
Gardiner, Brace, and Dolley : Provisional List of the Plants of the 
Bahama Islands. 
1890, Part I. 
Rex : A remarkable variation of Stemonitis Bauerlinii, Mass. 
,, Part II. 
Woolman : Marine and Freshwater Diatoms and Sponge Spicules from 
the Delaware River Clays of Philadelphia. 
Rex : Descriptions of three new species of Myxomycetes, with notes on 
other forms in Century XXV of Ellis and Everhart’s North 
American Fungi. 
Ellis and Everhart : New North American Fungi. 
Meehan : Contribution to the Life Histories of Plants. No. V. 
Proceedings of the American Academy of Arts and Sciences. Vol. XXV. 
Sturgis : On the carpologic structure and development of the Collemaceae 
and allied groups. 
Setchell : Concerning the structure and development of Tuomeya 
jluviatilis, Harv. 
Richards : Notes on Zonaria variegata. 
Watson : Miscellaneous notes upon North American Plants. 
— — — : Descriptions of New Species of Plants from Northern Mexico. 
Proceedings of the American Association for the Advancement of Science. 
Vol. XXXVIII. 
Goodale : Some recent investigations relative to Cell-contents. 
Proceedings of the Biological Society of Washington. Vol. V. 
The course of Biologic Evolution. 
