LEPIDIUM HETEROPHYLLUM 421 
thus :—‘‘ Ailes des silicules arrondies au sommet ou faiblement 
échancrées.” A careful examination of authentic specimens in the 
Kew Herbarium shows that many of the silicules are really notched. 
There are two sheets of specimens with the following label :— 
‘‘Lepidium heterophyllum Benth. In superiori vallis Kynes parte 
a la Bagouta prope torrentem. Pyr. or. Unio itiner. Endress. ad 
finem Junii 1830.” I find, even on the same specimen, silicules 
th own 
phyllum. M. Areasque prés les Eaux Bonnes. 5.8.89.” The left 
hand plant of specimens gathered in the Vallée d’Hynes, 24-26, 
similar to the Redbridge plant. 
us Mr. Brown’s character—‘ Fruit without a notch at the 
apex’’—would exclude from the L. heterophylium of Bentham 
several specimens gathered and named by Bentham himself. 
Grenier and Godron found the distinction between their a hetero- 
hara 
specific description. Their a pyrenaicum nob. is described thus— 
‘Plante verte, & feuilles presque glabres”; their 8 canescens nob.— 
‘‘Plante d’un vert blanchatre, feuilles trés velus.’”” = Lepidium 
Smithii Hook. Thus, if Mr. Brown’s nomenclature were adopted, 
confusion would be created, as var. alatostyla would come under his 
typical L. heterophyllum, whereas it comes under the PB canescens of 
Gren. odr. 
I feel a diffidence in suggesting a nomenclature and arrange- 
ment which would be most suitable. If we accept subspecies, both 
ampe .; any way, in con- 
sideration of the marked difference in character and of the different 
specimens collected by Mr. James Groves has similar silicules, 
some of which are slightly emarginate and some rounded at the 
apex, 
