202 
A. E. Lechmere. 
3. The sexual organs, when found to be present, present 
almost as great a variety of form as has already been 
mentioned as occurring in the case of asexual methods 
of reproduction. 
As the result of the investigation of Species II., the following 
facts have been established :— 
1. It is determined as 5. Thureti de Bary, from a consi¬ 
deration of all general characteristics. 
2. It shows two peculiar variations in the method of 
formation of new sporocysts :— 
(A) . Formation of new sporocyst by basipetal 
segmentation of the hypha, described for 
the first time as occurring in the genus 
Saprolegnia. 
(B) . Various modifications of the method of new 
sporocyst formation by repeated upgrowth 
of the hypha. 
3. It shows septation of the older hyphse into segments. 
a habit formerly described as a characteristic of 5. 
tomlosa. 
4. The presence of gemmae, not previously noted for this 
species. 
5. The occurrence of oocysts in a row, not previously 
noted for this species, but described as found in S. 
dioica and 5. tomlosa. 
6. The absence of spots on the oocyst wall, regarded as a 
variation, not previously mentioned as occurring in 
this species. 
I should like to take this opportunity of correcting some errors 
in my previous paper (New Phyt., Vol. IX., p. 305). 
In the Analysis of Genera, p. 308, insert after § Leptolegnia: 
and the sporocysts contain a single row of zoospores. 
Page 315 § (5). For Leptomitus- type read Leptolegnia- type, 
and for genus Leptomitus read genus Leptolegnia. 
Page 318, Summary. For Leptomitus read Leptolegnia. 
Finally, I should like to take this opportunity of expressing my 
very sincere thanks to Monsieur L. Mangin, Membre de l’lnstitut, 
