: , Bion, This feature, for the purposes of such a book, is especially to be i 
ee commended. Of much value also are the abundant references to the a 
merican sources of information about our native pteridophytes. The 
whole text is exceedingly satisfactory, and will do very much to stimulate 
r the user to a closer acquaintance with our ferns and to make of him an 
acute observer, or even an original investigator. The typography is 
__worthy of the text. It would have been a happy thing, however, for the 
: “ new publisher to have improved the quality of a few of the illustrations. 
Mast’ 
ay Minor Notices. 
Mr. Woopwortn, working in Dr. Farlow’s laboratory, has investi- 
gated the growing point of Fucus, using F. furcatus first, and confirming 
his results upon F. vesiculosus and F. filiformis. While Reinke and 
ea. tafinski found what they considered a group of cells, Woodworth sees 
__ @ single initial cell, four-sided, wedge-shaped, with convex sides, the 
_ smaller upper end being rounded and the base truncated, with its greater 
_ diameter at right angles to the broad surface of the frond. Woodworth 
ees 
me _ results are confirmed by their agreement with what is known of related 
___ Species and cryptogams in general. 
ey glands lead to the conclusion ps 
€a is a retrograde development from S. variolaris. This com 
‘clusion is confirmed by the fact that S. variolaris secretes a considerable 
Amount of a digestive : 
i while 8. purpurea produ 
ces but a trace of 
, curator of the Milwaukee ase 
and vascular Cryptogams, of whic 
* sos ct it ee 
se 
2 a co qT eontH, W. McMicHazt.—The a 
aa, ie ead hs % pl.1. 8yo. eprinted from Annals of Botany, Feb., 1888: 
gy ILSON, Ww. P.—On the ‘ A ‘i #, ox 9°, 
_ Acad, Nat. Sci. Phila. Fe pow of Sarracenia purpurea to variolaris. p 
'b. 20 
oe "WHEELER, W. M.—Flora i eas 
.M, of Milwaukee County. pp. 154-190, 8vo.—Extract fr 
Nat. Hist. Soc. of Wisconsin, April, 1838, res : 
Prot. 
r 
. 
BOTANICAL GAZETTE. [June, — 
Was able to observe the relations of the cells accurately by imbedding the 
_ tips of the fronds in paraffin and cutting ribbon serial sections, and his 
ferment which dissolves the soft parts of insects, 
it 
Di cs 
pical,cell of Fucus. (Contrib. from CryPt- se 
Bat 
a 
