10 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
carpets about a rood of ground, and appears to be spreading, 
June, 1903. — Joseph Adair. C. trifolia, Linn., not trifoliata, is 
a native of eastern Europe, and is not likely to be confounded 
with any native species. It is not given in Dunn’s Alien Flora 
for Britain. — G. Claridge Druce. 
Sisymbrium Irio, Linn. Waste ground, Dublin, coll. R. L. 
Praeger, comm., August 1903, A. B. Jackson. 
Lepidium gra 7 ninifolium, Linn., at Cardiff Docks, Glamorgan, 
v.c. 41, 29 August 1903, along with other casuals. With woody 
stems of extraordinary toughness. The Rev. E. F. Linton has kindly 
named the plant. — H. J. Riddelsdell. 
Lepidium Smithii, Hook, var. alatostyla, Towns., Sept. 1903. 
Garden specimen from a two-year old plant raised from seed 
collected at Redbridge, near Southampton, Sept. 1901, Hab., 
rough banks on the coast. Coll, and comm. F. Townsend. 
I think Mr. Townsend’s Lepidiicm deserves subspecific rank, and 
in that case it should be called L. alatistylujn, Townsend. Appar- 
ently Mr. N. E. Brown is quite wrong in identifying it with 
L. heterophyllum, Benth. (see ‘ Suppl. E. B. ’ p. 27), where he 
records it as also growing at Lydd, Kent, but of this 
statement no notice is made in the ‘ Flora of Kent,’ although 
Z. hirtum (which is given as synonymous with Z. Smithii, Hook), 
is cited from that locality. The nomenclature of the allies of 
Z. Smithii, Hook, to give the name it is best known by, is much 
involved. In the Desiderata lists many members ask for Lepidium 
hirtutn, var. canescc7is of the ‘ London Catalogue,’ while few ask 
for Z. hirtu77i. It is possible that they are misled by the mistake 
in the ‘ London Catalogue ’ of putting the census number 88 
after Z. hirtu77i S 771 ., and not after the variety ca7tesce7is, which 
should have Gren. and Godr. put in brackets, as the authors 
of the ‘ Flore de France ’ correctly described it as a variety of Z. 
heterophyllu77i, to which it belongs, the latter being synonymous 
with Z. S77iithii, Hook. According to the information possessed 
at present our British plants of this section are : — 
Lepidium campestre, R. Br., 87. 
[L. heterophyllum, Benth.] 
Var. canescens, Gren. and Godr., 89 (L. 
Smithii, Hook). 
Forma dubia (yellow anthers), i. 
L. alatistylum, Towns., i. 
L. hirtum, Smith ? i. 
Members should especially look out for any plants with hairy 
fruits. — G. C. D. 
Erophila brachycarpa^ Jord. Wall top, Froggatt, Derbyshire, 
