61 
Silene [dubia Herbich.]. Culver Cliff, Isle of Wight, June 
21, 1930. [Ref. B 49]. On this cliff there appear to be two 
forms of Silene dubia ; one about 40 cms. high, with very 
dark green foliage, the other about 25-30 cms. high with 
shorter leaves. They seem to be merely states depending on 
degree of exposure to the sea winds. — J. E. Lousley. A smaller 
plant than S. nutans, with much shorter radical, and much 
shorter and narrower cauline leaves. — J. Fraser. The 
specimen sent is a strong example, just out of flower, of the 
plant which C. E. Salmon identified with S. dubia Herbich 
( Journ . Bot. xliii. 127, 1905). But Moss shows {Cambridge 
British Flora, iii. 79, 1920) that this form is identical with the 
specimen of S. nutans in the Linnean Herbarium, and he 
therefore treats it as the typical form of S. nutans L. There is 
no doubt of the correctness of Moss’ identification, for 
Linnaeus’ specimen is an excellent and unmistakable one, 
which must be accepted as a type. This view accords with 
that held on the Continent, and 1 have myself collected 
exactly similar Swiss examples. In the Club's Report for 
1922-23 (p. 207) Mr. Lacaita remarked on specimens sent as 
S. dubia, “ I am unable to distinguish this plant from ordinary 
S. nutans .” The name S. dubia Herbich should evidently 
have been expunged from the last editions of the London 
Catalogue of British Plants and Druce’s Plant List. 
The broader-leaved, white-flowered plant known to British 
botanists as S. nutans is referred by Moss (1. c.) to a variety 
smithianus (sic), and is said to be apparently unknown outside 
Britain. Moss includes under this variety both the Nottingham 
Catchfly and the taller form of Hover Cliffs, which Hudson 
{FI. Anglic a. ed. 2, i. 186 and 188, 1778) and Smith {FI. Brit. 
ii. 466-7, 1800) had considered distinct. These two plants 
are closely allied, if not identical, and apparently constitute 
a well-marked endemic form whose status needs further 
investigation. — H. W. Pugsley. 
Cerastium semidecandrum L. [871], Rowney Warren, 
Beds., May 26, 1930. — J. E. Little. This very dwarf plant 
forms a close carpet in spring upon wayside sand of the 
Greensand. Hr. Abbot {FI. Bedford, 1798, No. 343) records 
a Cerastium piimilum Curt, which is considered by Hr. G. C. 
Hruce ( Viet. Co. Hist. Beds.) to be C. semidecandrum. It is 
possible that the present plant may represent it. Other taller, 
more erect plants occurred on the outskirts of the Warren. 
