_ SHORT NOTES. 809 
herbarium. Centaurea solstitialis has appeared in a lucerne field at 
Grantchester. This is the second record since 1848. Symphytwm 
tauricum and Petasites fragrans occur now in several places near 
Cambridge, and Campanula rapunculoides has sprung up in ¢ 
siderable quantity on the site of a Roman villa near Reach, 
unearthed during last winter.—J. Henry Burxit. 
Exxocuaris acicunaris Sm. — A peculiar form of Eleocharis 
n- 
in that country. The form in question flourishes in from two to 
four feet of water, covering the bottom with a thick growth like 
short grass. T are of about normal length,--two to fou 
inches,—-not drawn out, as mentioned in Babington’s Manual and 
Syme’s English Botany as oce rring this speci - 
merged; and they are apparently invariably destitute of inflorescence, 
all the specimens I exa eing uniformly barr The 
are translucent and very slender, collapsing into a encil when the 
plant is taken from the wate I first noticed this plant in the 
of somewhat rare occurrence in Ireland, and I did not feel sure as 
to the identity of the lacustrine form till Mr. A. G. More verified 
my determination.—R. Luoyp PRAEGER. 
Duration OF COcHLEARIA GROENLANDICA L.—I find that this 
species is not necessarily annual or biennial. Specimens in m 
garden, brought from E. Ross in 1891, have flowered two summers 
in succession, and are still thriving. The plant thoroughly main- 
tains its distinctive characters.—Hpwarp S. MarsHa.t. 
LLIMoOsELLA AQUATICA IN Inecanp.—Early in July last, Mr. O'Kelly, 
r 
having apparently, after submergence, cast off most of the old leaves 
with the ripened fruits, and developed a fresh crop of bright green 
