184 REVIEWS. 



papers with corrections or additions, others original revisions 

 by the editor himself — are added in an appendix, so as to 

 afford every possible help to the student or collector who has 

 not access to a full botauical library, and indeed most accept- 

 able facilities to those few who have. 



Alter thus calling attention to a volume of so much im- 

 portance, we propose to restrict our comments to sundry 

 details of criticism, or points of information, where opportu- 

 nity occurs. 



Under Thalictrum Fcnclleri some synonyms are adduced 

 which are not all certain ; as there is another Oregon species 

 which has been confounded with T. dioicum, but is distinct 

 from both in the fruit, which was sparingly collected in the 

 British Boundary expedition, and lately by Mr. Hall. 



Ranunculus alismcefolius var. montanus is essentially equiv- 

 alent to the variety alismellus Gray ; although the speci- 

 mens from the " head of Provo River in the Uintas " are a 

 stouter and larger-flowered form, identical with Parrv's No. 

 79, which we had wrongly named when distributed, and which 

 may be rightly characterized as merely a dwarf mountain state 

 of Geyer's Ii. alismcefolius. We may now add that there is 

 a much older name for this species, especially for this moun- 

 tain form of it, namely, It. Pseudo-ffirculus of Schrank, 

 1842, a Songarian plant. It may also be noted that, while 

 this species in eastern America takes the place of the Euro- 

 pean It. Flammula, both occur on the western side of the 

 continent (as also in Siberia), and in forms so much alike 

 that only the character of the style and that of the petal and 

 its scale (so well indicated by Mr. Watson) will serve to dis- 

 tinguish them. Of amply developed It. Flammula — as large 

 as any European form — copious specimens have been col- 

 lected in Oregon last year, by Mr. Elihu Hall, and are soon 

 to be distributed. 



As to R.fascicularis, there is no clear evidence that this 

 species extends to California, Nevada, or even to Oregon. 

 The plant referred to and so named in Ly all's collection, 

 though not in fruit, is apparently R. orthorhynchus, a plant 

 most rare in collections, but now, thanks to E. Hall's collec- 



