gi '* Current Literature. 295 



Callhriche is credited with eleven, one of which, C. longipedunculata, 

 is a new species from S. California. Proserpinaca includes two species; 

 while Myriophyllum contains twelve. In the last genus M. ambiguum, 

 var. limosum Nutt. becomes M. humile (Raf.), and M. scabratum 

 Michx. becomes M. pinnatum (Walt.) 



Mr. A. P. Morgan has issued the fourth paper in his series on 

 North American Fungi, being a reprint from the Journal of tin' Cin- 

 cinnati Society of Natural History, April, 1891. It treats of the genus 

 Lycoperdon, which is made to contain thirty-one species, two of 

 which are new. The paper is illustrated by two plates. 



Minor Notices. 



M R - J. S. Chamberlain has been making a comparative study of 

 the styles of Composite. His paper containing 22 pp. and four plat 

 is issued as a reprint from the Bulletin of the Torrey Botanical Club, 

 xvin, 175. Mr. Chamberlain concludes that while style characters are 

 very useful in the classification of tribes, they cannot be relied upon 

 entirely. 



An enlarged and greatly improved edition of Woolls' " Plants in- 

 digenous and naturalized in the neighborhood of Sydney" has just 

 been issued. The plants are arranged according to the system of 

 tfaron F. von Mueller. The species of vascular plants number 1465, 

 1 °f which 175 are naturalized. 



A very valuable contribution to the literature of Geographical 

 Botany is the paper just published by Mr. Warren Upham in Proceed- 

 ings of the Bistort Suiety of Nitural History, 25, 140-172, entitled, 

 4 Geographic limits of species of plants in the basin of the Red River of 

 the North." Mr. Upham's extensive investigations into the glaciology 

 of that region, combined with his botanical training, have well fitted 



him to discuss the relation of plant distribution and migration to 

 climate. 



The annual report of the Geological Survey of Arkansas for 1888 

 has just appeared. Half of the report is devoted to a list of the plants 

 of Arkansas, together with some general discussion of the state flora, 

 by John C. Branner and F. V. Coville. The list does not pretend to 

 speak of geographical distribution, but any fairly complete list of 

 Plants from Arkansas is of interest. 



Prof. Conway MacMillan has distributed a reprint of his article 

 J n the Revue general de Botanique, on the European plants which have 

 been introduced into the valley of Minnesota. 



