168 
Cerastium pumilum Curtis. Limestone slopes of Durdham 
Down, Bristol, v.c. 34, April 1920. — H. S. Thompson. Yes, 
excellent material. — C.E.S. As is to be expected, there are 
extremely accurate and beautiful illustrations of this species and 
of C. tetrandrum , C. semidecandrum , C. vulgatum and C. mscosum in 
Curtis’ “FI. Londin.” also good comparative diagnoses. In the 
new edition by Geo. Graves (first series, 1817 — 26) we read 
under C. vulgatum ; “ Such are the imperfect characters which 
Linneus has given to this and its neighbouring species C. viscosus , 
that it is no wonder that Curtis, in the first edition of this work 
(as well as other equally able botanists) should have misapplied 
the names, giving to the vulgatum the name of viscosum and 
vice versa.” — H.S.T. 
Arenaria tenuifolia L. Coarse ballast, G.N. Railway near 
Wilbury Hill, Herts., v.c. 20, June 11, 1921. — J. E. Little. 
Young calyces all somewhat glandular at the base ; old becoming 
naked. These plants appear to correspond with those at Wilbury 
Hill, where there were almost none this year. Indeed, as a 
locality for plants, the gravel pit on Wilbury Hill will soon be 
non-existent, owing to invasion by camping-parties from Garden 
City. It is possible that the seeds were blown by a north wind 
from Wilbury Hill, which is not more than half-a-mile away. 
The plants are of a race distinct from those in several localities 
round Hitchin station, on the railway : the latter have uniformly 
a glabrous calyx.— J.E.L. 
Lavatera cretica L. Embankment leading to railway bridge, 
Sheringham, Norfolk E., June 1921. — F. Long. It seems that 
Mallows with bright flowers have been known for a long time at 
Sheringham, but have always been regarded as Malva sylvestris, 
the increased colouring being due to the sea air. I sent some 
specimens to Mr. A. Bennett, who found them identical with 
specimens from Scilly. Further investigation is necessary. — 
F. Long. I can see no L. cretica present. — W. R. Sherrin. Not 
a Lavatera I believe, why is it not ordinary Malva sylvestris 1 — 
C.E.S. This has the reticulate-rugose carpels, the much smaller 
seed and other features of the polymorphic Malva sylvestris. It 
is chiefly the corollas of these two plants which are often so 
extremely alike. The three broad lobes of the epicalyx of the 
Lavatera distinguish it.— H.S.T. 
Trifolium strictum L. St. Brelade, Jersey, June 13, 1894. — 
Jas. W. White. 
