PLANT DISTRIBUTION. 163 Chrysosplenium alternifolium. Golden Saxifrage Myriophyllum verticilliatum. Water Milfoil Oenanthe fistulosa. Water Dropwort Dipsacus pilosus. Small Teasel Petasites vulgaris. Butter Bur Lycopus europaeus. Gipsy Wort Rumex hydrolapathum. Great Water Dock Ceratophyllum demersum. Hornwort Orchis latifolia. Marsh Orchis Iris pseud-acorus. Yellow Iris Alisma plantago. Water Plantain Fritillaria meleagris. Fritillary. Typha latifolia. Heed Mace Phragmites communis. Reed Scolopendrium vulgare. Hart's Tongue Ophioglossum vulgatum. Adder's Tongue Listera ovata. Twayblade Potamogeton crispus. Curled Pond Weed P. lucens. Broad-leafed Pond Weed Lemna minor. Duckweed Juncus communis. Common Rush Polygala vulgaris. Milkwort Poterium sanguisorba. Salad Eurnet Pyrus torminalis. Wild Service Tree Tragopogon platensis. Goat's Beard Campanula glomerata. Clustered Bell Flower Lithospermum officinale. Common Cromwell Veronica sarpyllifolia. Thyme-leaved Speedwell Lamium galeobdolon. Yellow Dead Nettle Primula vulgaris. Primrose Chenopodium bonus-henricus. Wild Spinach Orphrys apifera. Bee Orchis Gymnadenia conopsea. Flagrant Orchis Scabiosa columbaria. Meadow Scabious Centaurea scabiosa. Greater Knapweed Briza media. Quaking Grass Rhinanthus crista-galli. Yellow Rattle Mentha pulegium. Pennyroyal NOTES TO TABLE IV. (1) Remnants of the Heath Flora. (2) Remnants of the Woodland Flora. (3) Remnants of the Aquatic or Marsh Flora. (4) See note on Primrose at foot of Table III.