78 
Catalogue of the known Plants (Phenogamia and Pteridophyta) 
of Oregon, Washington and Tdaho.—Thos. Howell. (Pamph., 
8vo., pp. 28, Arthur, Oregon, 1887.) 
A list of 2,152 species and 227 varieties of plants from the 
northwestern United States, an increase of about 30 per cent. as 
compared with Mr. Howell’s former catalogue, published in 1881. 
Celery Leaf Blight. (Cercospora Apii, Ives.)\—B. T. Galloway. 
(Bot. Gazette, xii., pp. 66, 67.) 
. This disease is said to destroy annually about one-half of the 
celery planted in the vicinity of Columbia, Mo. 
Chippeway Plant Names. L. H. Bailey, Jr. (Bot. Gazette, xii., 
Pp- 37-39.) 
_ A list of 54 names of plants used by the Chippeway Indians 
of northern Minnesota. 
Delphinium, an Attempt to distinguish the North American 
"Species of —Asa Gray. (Bot. Gazette, xii., pp. 49-54) 
A tentative arrangement of the species recognized by the 
author in the section Delphinastrum ; 20 of these are given, with 
five varieties. D. Parryi, D. Parishii, D. hesperium and D. 
Nuttallit are here first described. 
Diatoms, Raising them in the Laboratory. Prof. Sam’] Lockwood, 
Ph.D. (Journ. N. Y. Mic. Soc., pp. 153-166, plates vi. and vii). 
Prof. Lockwood is so well known as a careful and con- 
scientious investigator, that this paper possesses a peculiar value, 
and _ will doubtless attract unusual attention. It is certainly one 
of the most valuable contributions to the life-history of the Dia- 
tomacez ever published. After a series of well conducted exper- 
iments he reaches the following conclusions: That diatoms origin- - 
ate in spores so minute that they easily pass through filter paper ; 
that these spores are probably resting spores, not motile, and may 
lie dormant in total darkness for as great a period as thirteen to 
sixteen years; that the viability of some genera is greater than 
that of others; that, owing to the environment being abnormal, 
development may be rapid and erratic, and that diatoms have 
embryonal stages or forms with silicate fronds. Cow 
Equisetum litorale, Kiihl—W. H. Beeby. (Journ. Bot., xxv., 
pp. 65, 66; table 273.) ‘‘ The most noteworthy features about 
this plant are the abortive spores and the absence of elaters. It 
