420 BOTANICAL GAZETTE [DECEMBER 
now number twenty-nine, and all of them are represented in the collections 
of the Yale museum. Professor Ward ventures the opinion that we are only 
upon the threshold of knowledge in reference to the extinct floras of 
America, and he voices the hope of botanists by stating that “as we pene- 
trate deeper into the inner structure, it is safe to predict that the results will 
be such as even the botanists proper cannot afford to ignore.”’—J, M. C 
Dr. SmitH Ety JELLIFFE® has published a catalogue of the flora of 
Long Island. His reason for publishing a single list for an island which 
possesses numerous local floras “lies in the peculiar features of botanical inter- 
est that are caused by the position of the island in relation to the mainland, 
and the history of the growth of plant life on the Atlantic slope, as shown by 
the combined evidence of geology and botany on Long Island.” The author 
makes an interesting attempt to relate the present flora to what he calls 
“geological floras.” The following statistics of the flora are given: Thallo- 
phytes, 719; Bryophytes, 136; Pteridophytes, 41; Spermatophytes, 1342 
(Gymnosperms 14, Monocotyledons 322, Dicotyledons 1006); total number 
of known species 2238.—J. M. C 
FASCICLES 202 and 203 of Engler and Prantl’s Die natiirlichen Pflanzen- 
Jamilien have appeared as a double fascicle, completing the first part of the 
first volume. It is devoted entirely to Flagellata, by G. Senn. The general 
structure of these somewhat problematical organisms is dealt with in a very 
Satisfactory way. A summary of the group shows the following statistics: 
seven orders, twenty families, 128 genera, and about 350 i One can- 
not but remark the great preponderance of monotypic gen 
The first supplement to this work has also just been ssid, including the 
new material of the year 1897-8 for volumes II-IV. It contains not only the 
new genera which have been described, but also references to important 
additional literature. The continuation of these supplements will be of very 
great value.—J. M. C 
A. A. HELLER has issued a second edition of his “ Catalogue of North 
American Plants north of Mexico, bearing the date of November Io, 1900. 
The first edition was issued in March 1898, since which time the editor states 
that about two thousand new plant names have been published. The second 
edition possesses all of the features desirable in a catalogue of this nature, 
the page is printed upon one side only, giving space for the insertion of new 
names; larger type has been used than in the previous edition, and the press 
work is beyond criticism. Such complete lists are absolutely essential to the 
taxonomist and to those interested in building up collections. The editor 
gives the interesting calculation that “at the present rate of activity in taxo- 
nomic botany, the year 1905 will see twenty thousand plant names to be 
®The flora of Long Island. 8vo. pp. xvi--160. Lancaster, Pa.: The New Era 
Printing Co. 1899. §r. 
