338 APODACHLYA. 
This is a well-marked a variable plant. In one case two or 
slre trichomes, each o ich formed an irregular spiral, were 
There was no trace of granulation in the dissepiments, save in 
those between disintegrating articuli. The calyptra was so closely 
rid shiner as to form an apparent incrassation of the membrane. 
lour unknown, the specimens having been treated with chromic 
‘ei 
The only tome species with which O. capitata can be con- 
founded are 0. miniata Hauck and O. margaritifera Kiitz., both of 
which are as a fais larger. The much narrower cells and the 
nature of the eae easily distinguish the latter species from 
O. capitata, The very marked apical cell and considerable variation 
in the trichomes dicugaiah O. capitata from O. miniata. 
APODACHLYA. 
growing on a floating broomstick in Shropshire. All the 
paket but two (6 and 7) are magnified to the same degree—288 
Antony GEpP. 
EXPLANATION oF Prats 400.—Figs. 1-5. Apodachlya cs Zopf. Two 
nearly mature sporangia flanking a Cad sporangium. Below is an empty 
poran: 
gs 
from it. 
Ps - Ditto, oogonium and two i Til a Fig. 10. Ditto, four ee 
1g. Achlya racemosa Var. stelligera Cornu. Oogonium with two oospores 
4004. Oseillatoria capitata West fil. 
