i900} “CELL AND NUCLEAR DIVISION IN FULIGO VARIANS 251 
EXPLANATION OF PLATE XIV. 
All figures were drawn with the aid of the Abbé camera lucida, and all 
but 7 and 7 with the Zeiss apochr, obj. 2™™. igs. 2-7, and g with oc. 6; 
fg. 8 with oc. 12; and figs. zo-78 with oc. 18. 
Fig. 1. Portion of aethalium showing first cleavage furrows and lacunae 
___ tfthe protoplasmic reticulum. Xx about 150 
___FiG. 2. Superficial portion of protoplasm showing two cleavage furrows 
and scattered nuclei. . 
. Fie. 3. Portion of dividing protoplasm from interior of aethalium and 
' : lying between three lacunae marked 7. about 2 50. 
fa Fie, 4. Several entire segments and portions of others from surface of 
: lacuna in the interior of an aethalium ; profile and polar views of nuclei in 
the equatorial plate stage. 
Fig. 5. Segments from interior of aethalium with cleavage furrows cut- 
ting into it from various directions ; nuclei in equatorial plate stage. 
* Fig, 6, Segment cut through by hyaline areas which predetermine the 
course of the cleavage furrows. 
_ Me. 7. Later sta 
‘Fig. 8. Segment 
Med protoplasm and 
i Fie. 9, Binucleat 
ge in cleavage of a segment like that shown in fig. 6. 
showing cleavage furrows cutting through undifferenti- 
others cutting into hyaline areas. 
Uninucleated segment; nucleus in equatorial plate stage; 
part of nuclear membrane of parent nucleus still present. 
hey 
Present, "2 Metaphase ; part of nuclear membrane of parent nucleus still 
- Later stage ; connecting fibers straightened. 
T; Connecting fibers a narrow strand. 
> Cell division beginnin 
fated segment; cell division not yet begun. : 
cleated spore with thin wall; granules of reserve material 
i h Binucl 
"6.18. Uninu 
“Ytoplasm, 
Sects Encysted segment. 
