2 ON THE PURPLE TREFOIL FOUND IN SCILLY. 
vexillum, just above the calyx-tube, and is often confined to that part 
of the flower; but that in our plant the colour is deepest on the upper 
part of the standard, the portion corresponding with the patch of pink 
in true 7. repens being quite pale. Also, the calyx of T. repens is 
often much tinged with pink on the back, and has blotches of that 
colour at the top of its tube: but the very deeply coloured eorolla of 
the plant from Scilly has scarcely any (if any) discoloration on the 
back of its calyx, and very small and blackish-purple blotches at the 
top of its calyx-tube. The flowers of the two plants do not seem to 
differ in any other respect. 
The leaflets of T. repens vary considerably in shape, and therefore 
distinctive characters cannot well be derived from them. Mr. Townsend 
says that the veins on the under side of the leaflets of his plant are 
very prominent; and that they are not so in 7. repens. We do not 
place much confidence on this character; for the actual veins seem 
equally prominent in both plants, but the leaflets of that from Scilly 
appear to be very slightly plicate near the midrib, and thus the veins 
are rendered more apparently than really prominent. C M 
. The stem of this purple Trefoil is as decidedly both running and 
rooting, and also as solid, as that of true Z. repens, We find very few 
vifolia described as possessing such a creeping stem; in the account: 
of the genus by Seringe in De Candolle's * Prodromus? (vol. ii.), the only: 
species allied to T. repens in this respect are T. obcordatum, Desv., 
from Buenos Ayres, 7. anomalum, Schrank, of unknown origin, and 7. 
pallescens, Schreb. Of these the T. obcordatum and T. anomalum are 
apparently very slight varieties of T. repens, unless the “ foliis integer- 
rimis" should be held to separate the former from its allies; and 7. 
pallescens is incorrectly described. It is certainly ceespitose, and its. 
stems do not root, and therefore cannot properly be called creeping” 
(repens) ; indeed, usually they are not prostrate, and in the typical 
plant apparently never are so. The T. glareosum, Schleich., is perhaps 
a variety of T. pallescens. Its stems do not root, although they are 
more or less prostrate. Boreau considers T. glareosum as distinct 
from 7. pallescens, and Reichenbach seems to have held the same opi-- 
nion when he published specimens with those names in his Flora: 
German, Exsiccata (nos. 1880 and 1881). They are plants found 
only at a considerable elevation on mountains, and therefore not likely: 
secte any very close relationship to our almost maritime Trefoil from: 
ge n C RANA an ees i 
