170 BOTANICAL GAZETTE [ SEPTEMBER 
Figs. 14-15. Metaphases showing granular appearance of region 
between the groups of daughter chromosomes. X I500, ' 
Fic. 16. Stage corresponding to fig. 2. X 1500 
Fics. 17-19. Later stages showing the equatorial zone containing car 
bohydrate material. X 1500 
Figs, 18-19. Pormation of cell plate in the midst of the zone of cir 
bohydrate material. x I500 
Fics, 20 and 21. Brow of cell plate and disappearance of spindle bes 
xX 1500. See also fig. 7 
Fics. 12 and 21. ee showing change of position of cell plate froma 
diagonal to a transverse position. X 1500. | 
Fic. 23. Larix; showing arrangement of spindle fibers and differenti 
tion of Bi ec into layers, X 3000. 
G. 24. Larix, details in relation of radiating fibers to the connecting 
ae In a stage represented by fig. 7. X 4500 : 
Fic. 25. Ad/ium, portion of spindle in fain metakinesis, showing “adh 
tions of fibers to one another and distribution of granules in the spine. : 
xX 4500. : 
Fic. 26. Larix; two radiating fibers lying adjacent to the cent! 
spindle and crossing in such a way as to appear fused. X 4500 
Fig. 27. Larix, different stages in the transformation of the substance : 
of a spindle fiber into a portion of the cell plate. X 4500 ee 
Fig. 28. A/iium, relation of the connecting fiber to the carbohyd® 
material at the equator. x 3000. 
Fig. 29. Aldium ; cell plate elements _ 
the midst of the carbohydrate material. x 300 . 
_-FiG. 30. Addium ; late stage in the growth # the cell plate, ae 
relation of the outer radiating fibers to the growing portion ‘ ee 
X 4500. a 
FiG. 31. Altium ; cell plate with young cell wall showing ee 
where the cell plate is split. x 3000. a 
. 
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oe 
on the connecting fibers 
ERRATUM: on p. 85, line 16 from top, 7g. 10 should read fig: 3° 
