296 PROCEEDINGS OF SOCIETIES. 
simply divaricating. He ventured on this observation for inform- 
ation’s sake, and would leave to those acquainted with the 
histology of the higher plants the decision as to whether this was 
a circumstance of special singularity or weight. He thought, 
then, that this seemingly unusual arrangement, coupled with the 
apparent completeness and intimacy with which these vascular 
bundles were immersed in the brown, indefinite, cellular mass, 
whatever may have been its origin, seemed to point to the conclu- 
sion that they actually belonged thereto, or at least were found in 
it, and were not accidental foreign intruders during the manipu- 
lation, which latter assumption, indeed, Admiral Jones’s well- 
known scrupulous care would @ priori forbid. This assumed, 
then, notwithstanding that Admiral Jones’s researches had not 
disclosed any more of these spiral vessels, the observation thus re- 
corded seemed of very great interest, and, as far at least as it 
went, noteworthy in a very high degree. 
Dr. Grimshaw coincided with Mr. Archer that the circumstance 
of the vessels forming the bundles standing out at right angles 
from the rest, in the manner which had been drawn attention to, 
was singular, and he was not aware of a similar instance. 
Description of a Nuw Sprctes of Docip1um (Bréb.), from Hong- 
Kong. By Wirt1am Arcuer. 
Family Drswipi1acen, Genus Docidium (Bréb.) 
Docidium Kayei (sp. noy.). 
Plate VII, Fig. 2. 
Specifie characters.—Frond stout, about five times longer than 
broad; segments with four whorls of prominent, short, stout, 
hyaline, quadripartite spines, and a terminal whorl of hyaline 
simple spines ; ends truncate. 
Locality.—Kowloon, on the mainland, opposite Hong-Kong. 
General description.—¥rond about five times longer than broad, 
stout ; suture forming a somewhat prominent rim ; segments about 
two and a half times longer than broad, slightly and gradually 
tapering, with four prominent transverse whorls of short, stout, 
hyaline, quadripartite spines, their points divergent and subacute, 
and with a fifth whorl, just under the ends, of short, stout, subacute, 
simple spines; ends broad, truncate. The margin of the body of 
the segments presents an undulate outline, (including the terminal) 
forming five prominences and four intervening depressions. It 
is, of course, only the marginal prominences which impart this 
undulate outline—they really form whorls (Mr. Kaye informs me 
ten in each whorl), and on their summits are seated the hyaline 
quadripartite spines, forming gradual continuations of the promi- 
nences, and which are here so characteristic. The basal undula- 
