DESCKTPTIOXS OF TUE TLA TES. 
Note. 
nals. 
ng figures have b^^n ropnMluc'^l, by photo-Jitliogrnpliy nnd the hrliotjpe procr<;i^ 
gs mn^le witli a camera lucida, and lia»i 1m. u slightly rHnc'^'l from tli'^ origi- 
rs and nuinl)Pr8 following the descriptions of the fip^urcs indicate the combina- 
tions of Zeiss objectives and oye-picrps used in each case. 
DESCRIITIO^' OF TT.ATE L 
Sfipvatomj/rng liaeri PejTitsch. 
Figs. 1 to 1/5. Successive stages from the ppore to tho fonnatioa of the mature fcmaV organ. 
See p. 218. All J 2. 
Fig. 16. Terminal portion of young peritheciumj showing nucleated Iricliogyne and trichophoric 
cell before fertilization. J 4. 
Fig. 17. Young perithecinm in which fertilization has ju^^ been accomplished. J 2. 
Figs. 18, 10. Young pcrithecium after fertilization. The first divisions of the carpogenic coll 
have taken place. J 2. 
Fig. 20. A more advanced condition in which the ascogonium has divided into four ascc^^ nic 
cells (ac) and a secondary inferior stipporting cpII (ist). J 2. 
Fig. 21. A somewhat more advanced condition of the same. J 2. 
Fig. 22. A more advanced condition in which the asci have begun to l>ud from the ascogenic 
cells, A slightly oblique lateral view. J 2. 
Fig. 23. A still more advanced condition showing the further dovflopmcnt of the porith'^'^ial 
cells and tlieir relations to the ascogenic and stipporting cells. An optical section seen antcro- 
posteriorly. J 2, 
Fig. 24. Terminal portion of a mature pcrithecium just before the first spore discharj^. . The 
upper and lower series of canal colls (tc and c) are still intact, the latter beginning to be pressed apart 
by the spore mass (sm). The inferior cnnal-cells (no) have become som^^what modified through the 
thickening of their walls, and form a diaphragm between the general cavity of the perithccium and 
that of the neck. J 2. 
Fig. 25. A single four-spored ascus isolated. J 2. 
Fig. 26. Terminal portion of an appendage showing two antheridial cells with antherozoids both 
mature and in process of formation. J 12. 
JPi'l/n'fsrh hfla yryninnfn Thaxtcr. 
Fig. 27. Young perithccium, in which the trichogyne has not been ftrtiliz^-'d. ^j 4. 
Fig. 28. 
carpogenic 
superior supporting 

'. 4. 
1 2 
