Botany and Zoology. 147 
and Willdenow.” Reviewing at some length the various modern genera, 
Campteria, Litobrochia, Doryopteris, Heterophlebium, ete., into which va- 
rious authors have divided the Linnean Pieris, he concludes with the 
h 
commend itself to the student of general descriptive botany. The inves- 
Say sounder, views of the limits of genera an . One hundred an 
twenty-three species of Pteris are admitted, not including a large number 
obscure species, of which no notice is taken, and the fifteen or twent 
a assing, that it is not quite correct to say, as 
on page 155, that Agardh excluded only the Allosori of Bernhardi and 
Pres! from the Linnean Pieris, since in fact, he excluded all those that 
Swartz called “ Adiantoidece ;” among a 2 OF 
J, Smith’s genus, Doryopteris. Pteris dispar, Kunze, in Bot. Zeit. 6, p. 
i 
have been given as a synonyme of it. Ad diveilement affords the 
gratifying intelligence that the first part of the third volume may be ex- 
ted at an early day. 
Species of birds, of which all but 22 ‘are strictly N orth American. All 
Be 738 were determined from specimens, excepting 31 
ting the te of the species. The author’s habitual care and untiring 
zeal in research authorize full reliance on its accuracy. : 
x 
