* 
1876.] Multiplication by Fission in Stentor Mülleri. 275 
seeded. Its synonymous names are characteristic: R. stamineum 
Smith, for the remarkably long stamens ; R. fuchsioides Berlan- 
dier, for the resemblance to a fuchsia-blossom. In En land, 
where it is hardy, it is prized in cultivation for its brilliant red 
flowers garnished by the shining and almost evergreen leaves. 
Trained to the wall of a house, it may be carried to the height 
of fifteen or twenty feet, 
A synoptical view of the species will be convenient : — 
Flowers several in a raceme, small and flattish, greenish............. R. LACUSTRE. 
Flowers 1 to 4 on the peduncle (calyx-tube at least as high as broad) : 
i R. LEPTANTHUM. 
R. CYNOSBATI. 
White or whitish, narrow, with lobes longer than the tube and shorter than the 
half-inch stamens.................. R. GRACILE. 
Greenish or dull purplish lobes ; longer than the tube: 
Nearly Squaling the stamens: 065060. 84 o UGEL R. OXYACANTHOIDES. 
At length shorter than the stamens 
Calyx-tube and lobes rather narrow.................-.. R. ROTUNDIFOLIUM. 
Calyx-tube and petals broad........ R. DIVARICATUM. 
LES AOS e G80 A E Nee bp ET we ee E E 
pes Bo 
MULTIPLICATION BY FISSION IN STENTOR MULLERI 
BY HON. J. D: COX, 
I HAD the good fortune, one evening lately, to observe the 
Whole process of the division of a large Stentor Miilleri into 
two complete individuals, by fission. The circumstances were 
favorable for pretty carefully noting the phenomena exhibited. as 
the change went on, and there were some of them which I have 
not Seen narrated, and which have a direct bearing upon the 
question of the organization of this group of infusoria. 
e water was from the Maumee River at Toledo, Ohio, on 
Lake Erie, and contained a good variety of infusoria and of roti- 
fers, which had propagated quite rapidly in the glass jar, among 
Some aquatic plants carelessly thrown into it. The specimen of 
Stentor under consideration attracted my attention by its size, 
as it was about four hundredths (.04) of an inch in length, the 
stalk being stretched till it appeared about one half longer than 
the Proportions shown in the engraving of Stentor Mülleri in the 
rographic Dictionary. 
Whilst examining other forms in the compressor, I returned to 
this from time to time to enjoy its beauties, and soon noticed 
