62 BOTANICAL GAZETTE [yuLy 
rather than those of the eastern slopes of the Rocky mountain range. Nut 
tall, it is true, must have collected over a very large area of this ‘interior 
west, but what is one man’s work in such a vast region, even though he be a 
Nuttall? Keen in observation, discriminating in description, Nuttall stands 
without a peer as regards the field in question. For sixty years following his 
time some of the regions that he visited have not been entered by other bot- 
anists. On account of the inadequate specimens that he made, and their 
inaccessibility to the majority of workers, many of his species were for years 
rather discredited, or at least misunderstood. With the renewed interest 
that has sprung up during the last decade, Nuttallian species are again at 
par. Furthermore, new ones are being described by the score every year. 
From a long period of conservatism, during which the plants of the interior 
west were often disposed of as mere forms of species of widely different 
geographical range, we have now come to look upon this flora as quite as 
sharply defined as that of any other area of equal size. In the work before 
us we have an excellent example of this tendency. 
The remarkable number of 1976 species and varieties are reported in Dr. 
Rydberg’s Flora, though only the Spermatophytes and Pteridophytes are 
rest upon good authority. In spite of this.excellent showing as to numbers, 
the author assures us that large sections of the state are still almost a /er7@ 
incognita. Should these portions of the State yield in the same ratio, and the — 
other Rocky mountain states Prove equally prolific, the future Manual of the 
of no mean magnitude. 
7um \t Is stated “ it agrees with the description of D, conjugens Greene except 
* 
perceive them solely through the description. Dr. 
In Dodecatheon he lists ten species; [ 
Soa OF Witch Seen th the reviewer tm be basal upon 
and insufficient material. For instance, of D. pulch- 
