TERATOLOGICAL NOTES ON PLANTS. 45 
Teratological Notes on Plants.—I. By Henry N. Rioter, M.A., 
F.L.S., Assist. Botanical Department, British Museum. 
[Read November 2, 1882.] 
1. A Monstrosity of Carex glauca, Scop.—The specimen about to 
be described was found on a grassy down above Durleston Bay, 
at Swanage in Dorsetshire. It consists of a culm which bears 
two female and two terminal male flower-spikes; both the female 
spikes are supported on peduncles of some length, (1 centim. in 
the case of thelowest,) which spring from the interior of utricles ; 
each utricle contains, in addition, a female flower, exteriorly to 
which arises the peduncle. The lowest male spike springs, in 
like manner, from a much- Fig. 1. 
aborted utricle; but the 
peduncle is so short that it Ki 
hardly protrudes from it. j| 
The bract which subtends i j^ 
this utricle is truncate and i N V A 
broadly dilated, and bears i MY A rA ej 
à considerable similarity to E b y K yg j 
the utricular bract at the N N | Leg 
al f Ó 
base of the flower-spikes in | Ñ 
Carex polystachya, C. Hart- AW 
wegii, &c. The specimen XY 
also illustrates very clearly SS 
the homology of the seta 
which is characteristic of the 
Uncinie and of the group 
of Carices known as the 
Psyllophore. Cases have 
been recorded of the seta 
bearing rudimentary flowers 
(Linn. Journ. xiv. p. 154); 
and there can be little doubt A 
that we have in this in- 
stance an example of re- 
: A. Monstrosity of Carer glauca, Scop., 
Toron of the seta to Fome showing peduncles of the Hower-spikes emer- 
thing like its own original ging from utricles. 
form and proportion. In B. One of the utricles in section, showing 
the case of Carices with the positions of the ovary and the peduncle. 
