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J. Gebiet des atlantischen Nordamerika. 
a, Fossile Flora. 
Stur, D.: Die Lunzer Flora in den older Mesozoic beds of the Coal Field of 
Eastern Virginia. — Verh. d. k. k. geol. Reichsanstalt. Wien 1888. 
No. 10. 
Ward: Types of the Laramie flora. — Bull. of the Un. States geolog. survey. 
1888. No. 34/39. 
b. Lebende Flora. 
*Arthur, J. C., assisted by Warren Upham, L.H.Bailey, E. W. D. Hol- 
way a. o.: Report on botanical work in Minnesota for the year 1886. 
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St. Paul 1887. 
Bessey, Ch. E.: The grass flora of the Nebraska plains. — Amer. Naturalist 
XXI. p. 474. 
— — A few notable weeds of the Nebraska plains. — American Naturalist 
4888. p. 1444. 
*Brendel, F.: Flora Peoriana. The vegetation in the climate of Middle 
Illinois. 
Referat p. 43. 
Ellis, J. B., and W. A. Kellermann: New Kansas fungi. — Journ. of 
Mycolog. IV. p. 26—27. 
Harvey, F. L.: Fresh water Algae of Maine. — Bull. of the Torrey bot. 
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Johnson, L. N.: A tramp in the North Carolina Mountains. I. — Bot. 
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Memminger, E. R.: Prunus pumila in N. Carolina. — Ebenda, p. 95. 
*Pammel, L. H.: Weeds of Southwestern Wisconsin and Southeastern 
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Schriften, die sich auf ganz Nordamerika beziehen. 
Allen, T, F.: The Characeae of America. I. — 64 p. 89, New York 1888. 
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Bailey, L. H.: A preliminary synopsis of North American Carices, inclu- 
ding. those of Mexico, Central- America and Greenland with the 
American bibliography of the genus. — Proceed. of the Amer. Acad. 
of arts and sciences. N. S. Vol. XIV. part. 4. p. 959—457. 
