458 Mr. BaABINGTON on several new and imperfectly understood 
styles 3, short, divergent, with round blunt stigmas ; fruit triangular, 
longer than the perianth, quite smooth and shining. 
The British specimens of this plant differ from the foreign ones by having 
the stipules rather shorter than the joints of the stem, with fewer ribs; in 
every other point they are exactly similar. 
At Christchurch Head on the sandy shore towards Muddiford. Mr. Borrer, 
to whom I am indebted for specimens. I have it also from Herm Bay, 
Jersey, gathered by Mr. W. C. Trevelyan. y. 
10. P. Rau. 
Caule procumbente herbaceo, ochreis 2-partitis ovatis demüm laceris venis 
paucis distantibus simplicibus, floribus axillaribus, cariopside levissima 
perianthio longiore. 
P. marinum. Raii Syn. 147. (excl. syn.) 
P. aviculare «. maritimum. Huds. Fl. Ang. i. 171. (excl. syn.) Sm, Engl. 
Fi. ii. 238. 
P. aviculare 8. Hooker, Brit. Fl. ed. 3. 185. 
This plant appears to be exactly intermediate between P. maritimum and 
aviculare, agreeing with the first in its fruit, and with the second in its habit 
and stipules, which latter are much shorter than the internodes, and have 
very few, about 2, unbranched distant nerves; the leaves are longer than 
the internodes on the young shoots, but shorter on the old ones; the mar- 
gins of the younger ones are slightly revolute; flowers as large as those 
of P. maritimum; fruit much longer than the perianth, quite smooth and 
shining, not striated with raised points, and quite hidden by the perianth 
as in P. aviculare. ) 
The synonyms from the old authors, given by Ray, are referred by Sir 
J. E. Smith to P. maritimum, in which he is probably correct; but it is a 
point very difficult to determine on account of the bad custom which then 
prevailed of using the same blocks both in British and foreign works. I have 
not been able to ascertain whether “ P. Roberti of Loiseleur,” which Mr. Woods 
finds so similar to our plant as to be perhaps the same species, is published or 
merely named in manuscript. Mr. Woods’s specimens are from the South of 
