66 ON POTAMOGETON LANCEOLATUS OF SMITH. 
Peduncles 4 to 24 inches in length, not thickened towards the 
spike, sometimes ‘slightly stouter in the middle. Spike short, 
+ to } inch, ovoid. Lamina of the sepals Skins. orbicular. 
Ovary (very ani bn mall, oblong- ‘pitipticel, rounded at the base 
with a slight neck - the base of the sti igma. 
Ripe a unkno 
The 5 eee ve off stolons from the axils of the upper 
leaves, dhs leaves of which are very narrow, bright green, and 
ae pie 
—Wales: in the River Lligwy, Anglesea. England: 
Burwell Fen, Cambridgeshire. 
Mr. C. Bailey, of Manchester, gathered it in its Welsh habitat 
in August, 1875, and writes as follows :—‘‘ The plant grows 
longish patches to the exclusion of peg ce else near it. Ina 
amen taal the stream is slower, more water in, it simply fills 
m the bed to the satiate, so that the ducks cannot 
November, and sent me fresh specimens; he added that he had 
detected a Pees: formed fruit, and gave a sketch of it. I coul 
only find a very young ovary, but certainly in a more advanced 
stats than any I had before seen, although I have it from 
the Welsh station, gathered in August, September, Cobe.. and 
November. As I have it from the Fens growing I hope to get it to 
fruit; at this time the leaves are very narrow, very translucent, 
and of a beautiful bright green. As stated by Prof. Babington at 
p- 54, it is most certainly not the P. nigrescens of Fries Herb. Norm 
or Mantissa. I sent specimens of our lanceolatus to M. Otto 
plant, from the original station, and given Fries himself ; 
and he writes—*I do not think this is the pe (identical) as 
P. nigrescens, Fries.” He also kindly sent me a portion of that 
specimen, and from the structure of the leaf L he no doubt the 
original finder of the plant, ge * referred it to the species it 
is nearest, P. rufescens, Schrader 
I cannot help thiniely ‘that the ‘English Botany’ ‘ne of 
P. lanceolatus has misled continental authors, being without ths 
floatin ting leaves, and not oe the areolation of ret wah 
(which is regretted by Smith, Eng. Flor., vol. i., p. 238), which is 
well shown on some of the old specimens in the Hebets of Kew and 
the British Museum. Placing that plate by the side of a specimen 
of P. —- Gorski,} referred to his lanceolatus by Reichenbach, 
is a general appearance of our plant on a large scale. In 
Nolte’s collection at the British Massa are two incomplete speci- 
mens which so much resemble our lanceolatus, that it would be very 
desirable to obtain more — specimens whence these came, 
i.e., Holstein and Lauenber. 
* See Fries, Nov. Flor. Suec., p. 41. 
+ See Ascherson, ‘ Flora of Baadebuiy’ (Prussia), 1864, p. 656. 
