oa Notes and News. 437 
(836), both of Plante Wrightiane. Forselles was a Swedish mining 
‘tgineer and botanical writer of half a century ago, and Bourdon a 
sian botanist in the earlier part of this century. 
_ Lioyter states! that a very concentrated alcoholic solution of 
1 n be used to show up to advantage the lignified parts of 
Slafied (fossil) plants. Sections cleaned in chloroform are placed 
twenty-four hours in the solution, washed in absolute alcohol and 
unted in balsam. 
__JeXsen finds? that Euglena viridis and Chlamydomonas pulvisculus 
‘ow distinct geotropism, though usually the geotactic movements are 
‘Wetpowered by the directive influence of light,-heat and chemical 
-Mnls. Upon his experiments he bases a theory of geotropism of 
Mich the keynote is the differences of hydrostatic pressure in differ- 
‘Misections of the organism. 
__lhg rrrst half of an extensive contribution to the literature aire 
p nation of flowers will be found in the Botanisch Jaar . 
¥ (1893), 156-452. The work is by Dr. J. MacLeod and is illustrated 
ume six of the Jaarboek. 
» MX ArTaur Bennett, in his notes on Potamogeton in Journal of 
(October), considers two American species, = et a A 
i e P. 
MORPHOLOGY of the root tubercles of Leguminosé is discussed 
Aibett Schneider, in the American Naturalist for raxpnewet 
Tally vascular system differing from that of the root, and anatom- 
i semble a stem more closely than a root. 
Penn’? the genera of Musacez (Banana Family) were presented by 
“tala Engler and Prantl’s “Die natiirlichen Pflanzenfam® : 
ys inthe Annals of Botany (vi. ui Mah z: G. seh ee 
Omplete synopsis of the same family. he trae | that 
are naturally the most perplexing, Petersen estimating 
about 200 cultivation forms, reducible to about Heres. | go 
ly AM . cnc: 
EMOIR on the anatomy of the cell in fungi and filam 
alge, W. Wahrlich shows that protoplasmic continuity exists Very 
Linn. Norm. IV _—Bot. Cent. ivr (1893)- 18. 
amass eee E. ges. Physiol. me daa 428.—Bot. Cont. om (Eel se 
Dodonza: publisher: J. Vuylsteke, Koestraat 15, G r 
