Iso BOTANICAL GAZETTE | FEBRUARY 
ing the prophases of the division of the generative cell. They 
differ from typical centrosomes, however, (1) in arising de now 
in the cytoplasm; (2) in growing to comparatively enormots 
size; (3) in not forming the center of an aster at the pole ofthe 
spindle during mitosis; (4) in having a differentiated externé 
membrane and contents; (5) in bursting and growing intoé 
greatly extended cilia-bearing band, the formation of which is 
evidently their primary function; (6) in their non-continuily 
from cell to cell. 
7. Spore formation in some sporangia: Dr. R. A. HARPER, Lake 
Forest University — Dr. Harper’s paper is to be published with 
some additional material in the near future. 
8. Two new organs of the plant cell: Mr. WALTER T. SWINGLE 
Department of Agriculture——The author announced the finding. 
of two new organs or organoids, the one vibrioid, occurting 
abundantly in the superficial layers of the cytoplasm of some 
Saprolegniacee and some Floridee; the other being a Cem 
body in the developing egg of Albugo candidus. The vibrioid 
are slender cylindric sharply delimited bodies, about the size 
many common bacilli, but exhibiting rather slow bending % 
undulatory proper motions in addition to translatory movemels 
which are probably passive and due to the streaming of sa 
cytoplasm in which they are imbedded. They are fixed well IY 
ordinary killing agents, and when stained are very sharp 
differentiated from the surrounding cytoplasm. They can = 
be seen in the living cell. Their appearance suggests that ie . 
may be minute endo-parasites, but their constant occurrence 
plants in all stages of development and from widely S¢pe = 
_ localities militates against this view. Their function in unkn : 
The other new organoid is a nearly spherical body eee! : 
at one end of the egg nucleus of Albugo candidus. 1t'8 oft 
little flattened on the side adjoining the nucleus, | 
sharply delimited from the cytoplasm, but stains diff a 
It seems to be more or less granular in structure, appears : 
