144 Scientific Intelligence. 
A passing tribute is paid to the memory of another contributor, 
late Professor Tuomey of Alabama; and his name is commemorate 
The other new genus, Blodgettia, is named for the late 
of Key West, who had zealously collected the Algz as well 
plants of the Florida Keys, * 
The structure of Blodgettia confervoides (which is illustrated in one of 
. . . . *J° , > = j 7 n : 
mosing veinlets. Spores seriated in moniliform strings, develope from : 
the veinlets of the inner cell-wall!” The following is the detailed ald 
count. Ss 
“The highly curious little Alga on which the present genus is founded 
so closely resembles a Cladophora that it will readily pass for one, unles 
it be very closely examined under a powerful microscope. [udeed 8 7 
great is the resemblance to a branched Conferva that I formerly distribt 
ted it to my friends with the manuscript name of Cladophora ¢ as 
under which it was my intention to have described it in the present work; 
nor did I discover my error until I commenced makin sketches for thet 
plate now given. I was then first struck by the peculiar opacity one 
dissepiments; and afterwards by what looked like a compound cellular 
8. 
structure in the walls of the cell igs a 
n applying a higher power, other characters came out which indi my 
€ 
_ portion of one of the long cells which terminate the branches; place i 
on the table of a dissecting microscope, moisten it, and you may reaé oe 
besides 8 
but 
these are probably adventitious. When the endochrome has been | wry 
but to 
ee 
_ gitudinal section through the cell, when the different coats easily § (for : 
; 
it clearly, the outer coats must be removed. This may readily be 
there are two or more, though the secondary ones sometimes & <a 
ess, as 1s usually the case in the walls of cellular tissue. But the = 
coat offers a peculiarity of structure which I have not noticed a 
other Algw, nor have heard of its occurrence in the cells of any 
plants, _ At first sight the membrane seems to be ¢ merous 
. Minute, elongated fusiform cellules, not unlike the wood-cells of phanel? 
- gamous plants, but totally unlike any algze cells known to me. Carel a 
examination has however conyineed me that the appearance of cellular 
