1881. ] Botany. 389 
The most of the species found in the adjoining States east of 
the Mississippi, are also found in Arkansas. The same may be 
said of the flora of East Texas, Indian Territory and Kansas. 
I will close by giving a few of the trees of the gulf and coast 
flora that are found in South Arkansas, viz: Magnolia glauca L.., 
Sapindus marginatus Willd., Nyssa uniflora Wang., Fraxinus 
platycarpa Michx., Olea Americana L., Persea Carolinensis Nees, 
Carya myristiceformis Nutt., Quercus aquatica Nutt., Q. Phellos, 
oe and Pinus Teda L.—F. L. Harvey, Ark. Ind. Univ., Fan. 13, 
1881, 
Botranicat Notrs.—M. E. Jones, of Salt Lake City, well 
known as a collector of western plants, has recently sent out a 
printed list of his second fascicle of Utah plants. It includes 
about four hundred and fifty species, many of which are rare and 
interesting. Grawitz has recently shown that the moulds 
Eurotium and Aspergillus possess forms which are highly malig- 
nant when they obtain access to the circulatory system of animals. 
Their spores germinate in the veins and arteries and are carried to 
various parts of the body, producing death within a few days. 
The other forms of these fungi do not exhibit this malignity. 
In a paper on the preservation of grain in closed vessels, presented 
to the Paris Academy of Sciences, Jan. 10 and 17, 1881, Muntz 
announced that the production of CO, was but one-tenth as much 
in air-tight vessels, as when the air had free access. Increase of 
moisture and of temperature, increase the production of COy. 
The presence of CO,, although indicating the physiological combi- 
nation of the material of the grains, is in one sense beneficial, as 
the asphyxiating gas prevents the attacks of certain insects. 
Woronin has been studying the curious Myxomyceteous organ- 
ism, known as Plasmodiophora Brassice, which is supposed to be 
the cause of the hernia of the cabbage-——Dr. Koch has shown, 
in Cohn’s Beitrage zur Biologie der Pflanzen, that perfectly dry 
seeds can withstand a temperature as high as 120° to 125° 
Cent. (248° to 257° Fahr.), without injury——lIn the same publi- 
cation Dr. Miflet details the results of the studies of the Bacteria 
in the air. The air from a sewer contained an abundance of 
germs ; that from the soil contained a few, while that from a fever 
hospital contained none, because of the excellence of the ventila- 
tion, Dr. Heilsher has shown (in Cohn’s Beiraége) that one of 
the cotyledons of Streptocarpus polyanthus is persistent and de- 
velops into a perennial foliage. leaf. In Nature for Feb. 10, 
Mr. Francis Darwin reviews at length Dr. Herman Miiller’s recent 
work on the fertilization of Alpine flowers (Alpendlumen, thre Be- 
ruchtung durch Insekten und thre Anpassungen an dieselben). 
According to Baron Ferdinand von Miller, the blue-gum tree 
(Eucalyptus Slobulus) of Australia will endure a temperature as low 
as 20° or even 15° Fahr. It would appear from this that it might 
be grown in places in the Gulf States——J. C. Arthur publishes 
