176 BOTANICAL GAZETTE | SEPTEMBER 
containing food bodies were mistaken by these authors for cell 
walls? It is not quite certain that the species of Selaginella 
called Kraussiana in America is the identical one known by that 
name in Europe. The writer investigated the American form 
and found the sequence of events identical with those that obtain 
in S. apus. In attempting to repeat the methods employed by 
Millardet and Belajeff, it was impossible to distinguish through 
the spore wall the nuclei from the food granules, as both stained 
alike. Removing the exospore by shoving the cover glass to 
and fro was a tedious performance, whose results hardly repaid 
the effort. Moreover, it was impossible to manipulate the 
stains with enough precision to differentiate the nucleoli. As 
regards the spermatozoids, explicit statements are few. Belajeff 
figures those of S. cuspidata as biciliate bodies, somewhat ellip- 
tical in shape, pointed at the ends, with a slight spiral twist. 
Millardet gives substantially the same description, but no figures. 
In connection with his account he makes this reference to the 
work of M. Roze, who had published his observations in 1864: 
Ainsi qu’on le voit, mes observations sur la forme des anthérozoides du 
Selaginella Kraussiana sont loin de s’accorder avec celles de M. Roze sur 
es anthérozoides des S. Martensii et S. Galeottii. Toutefois, comme il a 
en affaire 4 des espéces differentes de celle que j'ai étudiée, je m’abstiens de 
toute discussion sur ce sujet. 
That there existed little information on the subject at this 
time (1869) is evidenced by the following statement : 
Les seules observations que je connaisse sur la germination des micro- 
spores du genre Selaginella sont celles de M. Hofmeister et de M. Roze. 
Ces deux auteurs se sont bornés A mentionner le fait de la production, dans 
la spore, de cellules contenant chacune un anthérozoide. C'est M. Hof- 
meister qui a constaté le premier l’existence, et la de ces animalcules; M. 
Roze a montré qu’ils sont biciliés. 
So far as I can determine, the authors who have described 
spermatozoids of named species of Selaginella that they them- 
selves have seen are as follows: 
1862. Hofmeister. : . 
1864. Roze first demonstrated two cilia in S. Martensii and 
S. Galeotti. 
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