THE LEPIDOPTERIST'S CALENDAR 211 



Pyrethram maritimum seaside feverfew 



Pyrus communis pear 



malus apple 



aucuparia mountain ash 



Quercus robur oak 



,, . ilex evergreen oak 



Ranunculus acris upright crowfoot 



bulbosus bulbous crowfoot, or buttercup 



Raphanus sativus radish 



Reseda luteola weld 



u lutea wild mignonette 



odorata garden mignonette 



Rhamnus catharticus common buckthorn 



, , frangula berry-bearing alder 



Rhinanthus crista galli yellow rattle 



Rhynchospora alba white beak rush 



Ribes uva-crispa gooseberry 



rubrum red currant 



,, nigrum black currant 



Rosa spinosissima burnet-leaved rose 



canina wild rose, or dog rose 



centifolia cabbage rose 



Rubia peregrina wild madder 



Rubus idseus wild raspberry 



fruticosus bramble, or blackberry 



csesius dewberry 



Rumex obtusifolius broad-leaved dock 



acutus sharp dock 



crispus curled dock 



hydrolapathum great water dock 



acetosa ..common sorrel 



acetosella sheep's sorrel 



Salicornia herbacea jointed glasswort 



radicans creeping glasswort 



Salix fragilis crack willow 



vitellina yellow willow, or golden osier 



triandra long-leaved triandrous willow 



viminalis common osier, or withy 



cinerea grey sallow 



aquatica water sallow 



caprea great round-leaved sallow 



repens creeping willow 



Salsola kali prickly saltwort 



Salvia pratensis sage, or meadow clary 



Sambucus nigra elder 



Saxifraga granulata white meadow saxifrage 



Scabiosa arvensis field scabious 



succisa devil's bit scabious 



columbaria small scabious 



Schoenus nigricans black bog rush 



Scirpus lacustris .'.bullrush, or clubrush 



Scleranthus perennis perennial knawel 



