60 
EXHIBITION MEETING, 1949 
Digitaria sanguiiialis (L.) Scop. N. Amer., &c. 
Setaria glauca (L.) Beauv. Cosmopolitan. 
rhalaris minor Betz. Medit. Reg., &c. 
Setaria viridis (L.) Beauv. Cosmopolitan. 
An interesting light is thrown on the preponderance of 
American aliens in our carrot-seed by Professors Munn and 
Bucholz in an article in Bulletin 735 of the New York Agricul- 
tural Experiment Station, entitled “ The Quality of Seeds on 
Sale in New York in 1948.” They found carrot-.seed packets to 
contain more weed seeds than an3' others examined and the 
number and varietj'^ accord verj" closelj’ with those found in 
West Norfolk. Observations in this country confirm the fre- 
quencA' of both Echi)wchJoa Crus-galli and Setaria viridis. 
For their encouragement and assistance with critical species 
the exhiljitors are much indebted to Messrs J. P. M. Brenan, 
C’. E. Hubl)ard, and N. Y. Sandwith of the Kew Herbarium 
staff. 
A feiv sheets of Scottish plants, by E. C. Wallace. 
Sa.rifraga cerniia L. One of the most interesting discoveries 
in Scotland during the last few years is the knowledge that 
Saxifraga cevnua L., so long thought to be confined to Ben 
Lawers, occurs in a second distinct locality. The specimen 
shown came from near Glencoe in Argyllshire, where it was 
found on somewliat calcareous exposed rocks at over 3000 
feet altitude by P. R. Bell and E. C. Wallace in early 
August 1949. A few plants bore flowers, but many con- 
sisted of a few leai^es, being seedlings from rock ledges 
above, where we saw it growing. A fuller account will ap- 
pear elsewhere. 
J uncus cornpressus Jacq. This was from a grassy roadside verge 
in the middle of the northern half of Lismore Island, Argjdl- 
shire, probably the most northerly station in Britain for 
this rush. Dr Sledge and I found it in some quantity, and 
there is no doubt about its being a native constituent of the 
island’s flora. 
Potamogeton coloratus Hornem. Also from Lismore, where it 
occurs in each of the three delightfully situated lochs on 
the island. 
Carex diandra Schrank. Marshy pasture on Lismore, and the 
swamps by two of the lochs on the island, have a consider- 
able quantity of this sedge and of G. paniculata in a slender 
form, Avith much C. lepidocarpa. This is only to be expected 
in view of the limestone nature of the rock. This Carex 
occurs on man.y islands off the west coast of Scotland. 
