Figs. 12. 
13. 
14-16. 
17. 
18. 
19. 
20 . 
Conidium of 4 cells and 3 germ tubes; a and b, germ tubes arising directly 
from the side of the conidium. 
Conidium of 3 cells and 2 germ tubes; a, b, branches arising from a germ 
tube near its base. 
Three conidia previous to germination; turning in part to one side, and 
thus nearly separating the cells and causing them to stand at an angle 
to each other; a, a, a, points in the partly separated cells where the cell 
wall is not hardened and where the germ tubes usually arise. 
Conidium of 3 cells having 2 germ tubes with its cells turned to one side, 
admitting of the germination of the central cell from the septum. 
Conidium of'4 cells; a, 2 cells turned at right angles to the remaining 2; 
c, the outer cells of both a and c have already germinated; d, points 
where the germ tubes of the two interior cells should push out, the tube 
from one of these having already appeared, b. 
Conidium of 3 cells and 4 germ tubes, a, b, c, d; a , germ tube arising from 
the inner end of a terminal cell. 
A 5-celled conidium with two long, unbranclied germ tubes extending at 
right angles to each other. 
21. A conidium of 3 or 4 cells having 3 rather long, unbranched germ tubes. 
22. A conidium of 3 cells and 3 germ tubes. 
23. Interior germination. An inner cell has pushed out a germ tube, a, into 
and through the end cell of the conidium. 
24. Conidium with several germ tubes, some septate and some br. ‘ched. 
25,26. Conidia showing septate germ tube and branch. 25, a , septa; 26, a, 
branch. 
27. Conidium with germ tube, showing many septa and branches, e, branches. 
Germinations obtained in moist cultures. All figures enlarged 800 diameters. 
Plate XIII. 
Fig. 1. Conidiophores of Cercospora circumscissa, Sacc.; a , tubercular mass of thick- 
walled cells just beneath the cuticle of the affected almond leaf, d, sup¬ 
ported by the mycelium, c, and bearing the conidiophores, b. 
2. Two mycelial hyphte, a, a, connected with the thick-walled storage cells, b, 
supporting the conidiophores, c. 
3-7. Various portions of the conidia-bearing organs, similar to those of Fig. 2; 
letters as in Fig. 2. 
8. a, First conidiophores, with dark heavy wall; b, a secondary or later growth 
from a, which is shouldered, c, and bears at the curved tip a forming co¬ 
nidium, d; e, septum. 
9. Secondary conidiophores, a, b, bearing conidia, c, d; e,f, points of attach¬ 
ment of two conidia to the single conidiophore; /, shouldered attachment; 
c, special attachment. 
10. Fascicle of conidiophores, a, having thick dark walls and mostly shouldered 
or curved, with a secondary terminal growth, b. This terminal growth 
may or may not be septate beyond its point of origin, and is most com¬ 
monly produced where there is much moisture. 
11. Upper view of conidiophores. 
12. An old fascicle of conidiophores, showing the twisted and distorted forms 
which they often take after having produced conidia. 
13. Fascicle of conidiophores, a, with numerous attached conidia, b. This 
shows that the distal portion of the conidium is that having the reduced 
diameter. 
All figures from nature. Figs. 1-6 and 8-12 magnified 800 diameters j Figs, 7 
and 13 magnified 600 diameters. 
