14-3 



is, the manner of growth in the ''balken " of Caulerpa. This 

 seems especially desirable to determine, inasmuch as it has been 

 made the means of supporting both theories, first by Naegeli, as 

 proving intussusception, afterward by Strasburger, as evidence of 

 the opposite theory. It would seem that the test of coloring the 

 old membrane might have thrown light on this question, but the 

 author expressly states Caulerpa was not the plant in which the 

 origin of the balken was traced. 



It is quite possible the weight of these remarks would be 

 removed by a perusal of the original, and their only excuse is, 

 the interest awakened in the old question by these experiments, 

 and the hope that the same or similar methods may be of use in 

 helping to a knowledge of the mystery of the manner of growth 



of the cell wall. E, L. G. 



Index to Recent American Botanical Literature. 



Agarics of the United States. — Genus Pamts.—Y^^^^xd. J. Fors- 

 ter. (Journ. MycoL, iv., pp. 21-26.) Fourteen species 

 described. 



Aquilegia loiigissima. Gray. (Garden and Forest, i., p. 3 1, fig- 6.) 



Archcsan Plant from the White Crystalline Limestones of Sussex 

 Comity, New Jersey. — N. L. Britton. (Annals N. Y. Acad. 

 Sci., iv., pp. 123, 124, plate vii. ; reprinted.) 



Asa Gray. Among the many memorials which have been pub- 

 lished, the following are worthy of record : 

 " In Memoriam," containing the funeral services as held in 

 Appleton Chapel, Harvard College, Feb. 12, 1888 (pamphlet 8vo, 

 49pages, Cambridge University Press); "Asa Gray, i8iO-i888,"" 

 by Prof J. D. Dana (Am. Journ. Sci., xxxv., pp. 181-202, 

 reprinted) ; and reviews by J. D. Hooker (Nature, xxxvii., pp. 

 375-377), C. S. Sargent (Garden and Forest, i., Nos. i and 2, 

 accompanied by a fine photogravure reproduction of the St. 

 Gauden's bronze medallion), W. G. Farlow (Bot. Gaz., J 



»» 



■ ■ * 



Meehan 



(W 



Hoff- 



n^an (Pharm. Rundsch., vi., pp. 49-56, with portrait and chrono- 

 'ogical list of works), M. T. Masters (Gardeners' Chronicle^ iii., p. 



