106 
distributor’s rfport for 1951 
Aphanes microcarpa (Boiss. & Reut.) Rothm. 3^ S. Devon; arable 
field, Rectory Farm, E. Allington, with A. arvetisis, 25th June 1951. 
S. M. Walters. 
[Saxifraga tricnspidata Rottb. Canada; Mackenzie District, North- 
west Territories; 62° 27' N. 114° 22' W.; very common in crevices and 
in shallow soil in hollows on rocky hillside behind cabin. Caespitose; 
flower creamy white, June 21st 1949. — W. J. Cody and J. B. McCansb 
(Ref. No. 2216), comm. Division of Botany, Science Service, Dept, of 
A cRicuLTimE, Ottawa, Canada, det. W. J. Cody.] 
[Saxifraga virginiensis IMichx. Canada; Ottawa District; Gatineau 
County, Hull Township, Cone. 5, along Mountain Rd. ; very common in 
shalloAv humus-rich soil on rocky hillside in open mixed woods. Flower 
white. May .3rd 1949.- — W. J. Cody and T. J. Bassett (Ref. No. 2052), 
comm. Division of Botany, Science Service, Dept, of Agriculture, 
Ott.awa, Canada, det. W. J. Cody.] 
Artemisia V erlotorim Lamotte. 28, W. Norfolk; waste sandy ground 
near beach, Old Hunstanton, October 20th 1951, not yet in flower. Dis- 
covered there first by R. P. Libbey. — E. L. Swann (Ref. No. 2254). “I 
think that this is correctly named A. Verloforum, though the segments 
of the upper leaves are broader and less attenuate-acute than in the 
plant common around London and on the Continent. Hunstanton is 
the most northerly locality in the world for this species.” — J. P. M. 
Brenan. 
Senecio sqtuilidKs L. x vvlgnris L. 63, S.W. York; waste ground 
near Sheffield; woody, sprawling; medium ligules; infertile; Septem- 
ber 12th 1951. — John Broavn (Ref. No. 2), comm. J. E. Lousley. 
Senecio vvlgaris L. (giant radiate form). 51, Flint; cult, in hort. 
Sanderstead, August 1st 1951. Descended from a plant found at 
Queensferry in 1948 by Miss E. P. A. Jones. This remarkable plant 
has been found in several places in Flintshire. Unless it comes under 
latifoUa, T do not think it corresponds to any of Trow’s segregates. No 
corresponding discoid form ap]iears to have been found. — D. P. Young 
(Ref. No. 4198). 
Senecio vvlgaris L. 17, Surrey; cult, in hort. Sanderstead, June- 
July 1951. Progeny of heterozygous, short-rayed form, showing segre- 
gation into discoid, short-rayed and long-rayed forms. Descended from 
an artificial cross betAveen a discoid (seg. praecox Trow) and radiate 
(seg. erectus Trow) form. The rayed form, which is homozygous, is 
very frequently accompanied in nature by plants with short, or rudi- 
mentary rays. These are the corresponding heterozygotes and may arise 
from natural crossing. Their progeny consists of plants like the present 
series, shoAving a Mendelian 1:2:1 segregation into_discoid, short-rayed 
and long-rayed forms. — D. P. Young. 
