tgit] BROW N—LACHNEA SCUTELLATA 297 
paraphyses and the pushing in of the ascogenous hyphae, which 
by this time have grown out from the ascogonium, it becomes too 
large to be covered by the setae and is thus exposed. When this 
has occurred, the ascocarp has attained its mature form (plate 
fig. 1). The relation of the various parts of the ascocarp is shown 
diagrammatically in fig. r. In this diagram are shown both the 
ascogonium. and asci, whereas the ascogonium always disappears 
before the formation of asci. 
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Fic. 1.~—Diagrammatic cross-section of ascocarp 
The vegetative nuclei usually contain a nucleolus and a small 
amount of scattered chromatin, but sometimes the chromatin is 
collected into a rounded mass resembling a nucleolus. In dividing 
the vegetative nuclei show five chromosomes. The nuclei of Lach- 
nea contain comparatively little stainable material, as will be seen 
from the figures. This scarcity of stainable material makes the 
figures appear diagrammatic. Such is not the case, however, as 
all figures were drawn with a camera lucida, and in those illus- 
trating nuclear details, all of the stainable material in the nuclei is 
