240 



T 



A very convenient list for all who may wish to botanize in the 



region. 



with, perhaps, a brief preface. In the one before us now there 

 is, besides the catalogue proper, a Preface, Plan of Catalogue, 

 Introduction, List of Abbreviations, Map of the County, with 

 description, List of Additions and Corrections, Recapitulation, 

 giving the number of genera, species and varieties in each order, 

 besides subdividing the species and varieties into those that are 

 naturalized, adventlve, or native ; a Summary, in which the num- 

 bers are given according to Exogens, Endogens, Pteridophytes, 

 Bryophytes and ThaUophytes; and finally an Index. The last 



1 



Cross- fertilization. — Immediate Influence of, tipoit the Fruit. 



A. B. Crozier (Report of the Botanist, U. S. Dept. Ag., 



Rep. for 1887.) 



A valuable presentation of all the evidence on this subject, \ 



with suggestions for investigation. The author cannot think that 

 such effect is yet proven, except in the case of Indian Corn. 

 Cypripedium Calif ornicum.. (Garden and Forest, i., 281, fig. 45-) 

 Diervilla rivularis. A. Gattinger. (Bot. Gaz., xiii., 19^-) 



A description of a new species, founded by Dr. Gattinger, 

 upon specimens collected at Lookout Mountain, Georgia, July 



6th, 1880. . 



Dodecatheon. — On so7ne Species of — E. L. Greene. (Pittoma, 



i., 209-214.) 



The writer contends that our Dodecatlieons are not yet cor- 

 rectly distinguished, and describes three species, D. patnlinny D. 

 critciaUtm and D. Clevelandi^ which are not included in any 01 

 the published descriptions. 

 Equiseta. — Revision of the Ca^iadian, — Geo. Lawson. (Can, Rec. 



of Sci,, iii., 157-158.) 



• Equisetum, — Spore Dissonination of. — F. C. Newcombe. (Bot. 



Gaz., xiii., 173-178; illustrated.) 

 Flora of Middlesex County, Massachusetts, — L. L. Dame and F. 

 S. Collins. (Pamph., 8vo., pp. 201 ; Maiden, 1888.) 

 The list of local catalogues seems ever on the increase, but it 

 can never be too large, provided they maintain the high standard 

 of those which have come to us lately. Early attempts at local 

 cataloguing were little more than bare lists of names and places, 



