TURF AND WEEDS OF OLD LEYTONSTONE GARDEN. 249
Dog Violet (Viola canina L. subsp. sylvatica var. Riviniana
Reich.). Very abundant on old kitchen garden borders ;
it produces showy mauve flowers in May which do not
bear fertile fruit ; cleistogamous flowers, with no petals,
continue to appear throughout the summer and produce
abundant seed.
Pansy (V. tricolor L.). A; common, probably reverted from
garden pansies; subsp. arvensis Murray is frequent on one
border.
Bladder Campion (Silene inflata Smith). Perennial and frequent
on old borders ; it is respected by our gardener.
White Campion (Lychnis vespertina Sibth.). On waste ground.
Chickweed (Stellaria media L.). Very common.
Pearlwort (Sagitta procumbens L.). Common on waste ground
and disused paths.
Mallow (Malva sylvestris L.). Persistent on waste ground and
between allotments.
Musk Mallow (M. moschata L.). A ; occasional.
Nonsuch (Medicago lupulina L.). A ; occasional.
Toothed Medick (M. denticulata Willd.). A ; a casual weed,
allied to M. maculata, with closely-coiled pods bordered by
a double row of spines ; the var. apiculata Willd. has also
occurred ; it differs from the typical form in having the
spines on the pod reduced to low warts.
M. orbicularis All. A ; has occurred once ; it is a native of the
Mediterranean region ; the broad coiled pods are much com-
pressed ; this is sometimes cultivated as a curiosity under
the name of "the Snail Plant," from the shape of the pods.
Small Melilot (Melilotus indica All., syn. M. parviflora Desf.).
A ; casual.
Crimson Clover (Trifolium incarnatum L.). A ; a handsome
casual from cultivation.
Clover (T. pratense L.). On waste ground, frequent.
Alsike Clover (T. hybridum L.). A ; casual.
Dutch Clover (T. repens L.). Frequent between the allotments.
Smooth Tare (Vicia tetrasperma Moench). Casual and not seen
of late years.
Hairy Tare (V. hirsuta Koch.). Casual; not seen recently.
Avens (Geum urbanum L.). Frequent in borders.
Creeping Cinquefoil (Potentilla reptans L.). Frequent on waste
ground.