78 Oliver * — On the Structure , Development , 
and likely enough is the same as that of which M. Maxi- 
mowicz had a fragment. I am indebted to Mr. Atsushi Matsura, 
a Japanese gentleman at present studying at University 
College, London, for a translation of the remarks accompany- 
ing the sketch in question, of which the substance is here 
given : ‘ Hishimodoki ’ — the Japanese name of the representa- 
tive of our genus — c is brought from Owari or Bishiu 3 (an 
eastern province of Japan). ‘The plant comes into leaf in 
the spring ; its leaves are of small size, resembling those of 
Trap a incisa 1 ; they are arranged in rows opposite one 
another, and roots originate at the side of every node of the 
plant. In the autumn it produces a fruit betwixt leaf and 
stem (i. e. in the leaf-axil), in form resembling an anchor or 
long-legged spider. The plant is very different from Trapa 
mcisa , and it must not be eaten.’ 
We see then that the Japanese, like the Chinese, distinguish 
between Trapa and Trapella , though at the same time noting 
the points of resemblance. 
Although in the following sections all the appearances pre- 
sented by the vegetative and reproductive organs of Trapella 
are entered on in more or less detail, special attention is 
given to certain striking anomalies in structure and develop- 
ment shown in the ovules. Not only are these described in 
detail, but throughout the account mention of analogous cases — 
whether in remote or allied types — is introduced for comparison 
where it would seem that such reference is required. 
I introduce here a technical description of the genus, based 
on that given in the ‘ leones Plantarum,’ but altered from that 
in so far as the examination of more complete or better 
preserved material requires it. 
Trapella, Oliv. in Hook. Ic. Plant, tab. 1595. (Qhar. 
emend.). 
Calyx tubo ovario adnato, limbo libero 5 “fido, lobis ovatis 
acutis. Corolla perigyna tubuloso-infundibuliformis, limbo 
1 T. incisa is given as a variety of T. bispinosa by C. B. Clarke in Hook. Flor. 
Brit. Ind. Vol. ii. p. 290. 
