EXTRACTS AND NOTICES. 817 
vulgatum.—F. T. Mott. I think this is rurivagum, but evidently 
wing under some unusual circumstances.—J. T. Boswell. 
Euphorbia pseudo-cyparissias, Jord..—Dry bank, Henfield, West 
Sussex, June, 1880. Abundant and thoroughly naturalised, but 
‘evidently an escape from the garden of the late Mr. Borrer.— 
W. H. Beeb 
Potamogeto -From the Tweed and Teviot. I sent a 
number of specimens in 1876, labelled P. nitens (see Report for 
1876, p. 85), where it will be seen that Dr. Boswell considered 
em 
in a footnote, ‘ Journal of Botany,’ n. s. viii., p. 289, referring to the 
same specimens, writes: ‘‘It does not appear to me to be that 
species (nitens), but a large form of P. decipiens approaching P, 
prelongus, probably P. salicifolius, Wolfg.” Atter seeing the above 
note, 1 wrote to Dr. Trimen, asking him to give it a name. His 
reply was: ‘It is not very easy to give a name to your Roxburgh 
larger plant further than that suggested in my footnote. Some of the 
foreign specimens of P. decipiens come very close. From P. salici- 
different from Mr. Ley’s Herefordshire P. salicifolius, distributed 
through the Club (see‘ Report,’ 1877, p. 10).—Andrew Brotherston. 
A dubious plant, and it is not easy to give a name without fruitin 
specimens. I cannot think it comes under P. nitens. It approaches 
specimens named P. undulatus, Wolfg., an in its peduncles and 
spikes it resembles P. salicifolius, Wolfg.—Arthur Bennett. 
(To be continued). 
Quelques mots sur l'étude des fruits. Par Paut Brovsse. With 
Sixteen Plates. Montpellier, 1881. 
Tue author of this interesting little study commences by 
pointing out the variability in value of fruits for classification. In 
the Papilionacee, Cucurbitacee and Crucifere the form of the fruit 
is a good distinguishing character, but it is not so with other 
orders, notably the Papaveracee, Rosacea, Oleinea and Solanaceae. 
four orders are discu in this work with a view to show 
that the differences are apparent rather than real. e work 
consists of three par he first treats of the definition of certain 
receptacle of the Synantheree he calls the clinanth ; the involucre, 
the pericline ; in placentation he substitutes the term angular for 
the axile placentation of Jussieu; general placentation for those 
cases where the ovules are scattered over the whole of the 
carpellary leaf, as in Butomus ; he defines as fruit as the entirety 
