BRITISH SUBMARINE VAUCHERIZ, 59 
acetabulosus Sow., are recognised. Placing Solenia Hoffm. in the 
order Pol yporet, instead of associating it with Cyphella in the ae 
Thelephoret, will not remain unchallen ed. 
We could have desired to see in the lower species of this volume 
a larger contribution to our knowledge of the form and size of 
that every mycologist a a microscope, it may be hoped that 
no opportunity may be lost of observing ra recording the pee pty 
of the spores, which can be best done in fresh specimens, and thu 
enable the author = — a future edition of his work with this 
much-needed inform 
he woodcuts are raf the same excellent quality as in the first 
volume, 40a a short but useful glossary is given. e again repeat 
to 
acquaint themselves with our British Hymenomycetes, a study 
fraught with much interest, and not a little utility. 
W. Pauirs, 
British Submarine Vaucherie. 
Professor Nordstedt, of Lund, has published some remarks on 
those little-understood plants, the British Submarine Vaucheria. 
M 
species of enue The Professor refers first to the 
vessina of Harvey (Phye. Brit.), of which he says it is impossible : 
determine the species. The specimen labelled V. velutina (leg. Capt. 
Car maishnsl}; in the Kew Herbarium is, Dr. Nordstedt says, V. spharo- 
spora; those named V. velutina in the Agardhian Herbarium belong 
to V. Thuretii, which often grows aiiea with V. sphar ospora. Th 
specimen marked V. piloboloides, in Mr. Holmes’s ‘ Alge Britan- 
nice rariores eortim No. 50, from Weymouth, is V. spherospora, 
and not V. piloboloid 
The difficulty of ‘distinguishing these plants is enhanced by the 
fact of the species frequently ates mixed together. Dr. 
Nordstedt has, however, observed so fag hae pry in chews habitat. 
Thus V, dichotoma and JV. litorea are ms be found at the lowest tide- 
marks; V. spherospora, V. Thuretii, V. pana th, and V. coronata 
at half-tide level; while V. gia grows on the highest ground, 
sometimes among grass. pherospora is met with on the shore 
of the Thames ok Kew, aad: in “To river at Malden, in Essex. This 
plant spreads its filaments over sand, or grows in dense masses in 
mud, Papen af piloboloides, according to Woronin (Bot. Zeit. 
No. 27), g in deeper W water than any of the other species, 
probably in Suits salt water 
rnicephala is an alee name than J. sericea is.) ., but it is 
not certain whether this is the same species as P’. ser 
Dr. Nordstedt’s remarks are written in English, here are accom: 
panied with figures of V. eh a ee ospora, V. Thuretii, and V. 
synandra, and descriptions of f these species. 
fess 
ors Wittrock a ma Norstdt conte to sue thee spon 
