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A HISTORY OF NORTHAMPTONSHIRE The Willow Brook or Nene C. district also contains among others the following interesting plants : — Helleborus foetidus, L. — viridis, L., var. occidentalis, Druce Papavcr hybridum, L. — Rhoeas, L., var. Pryorii, Druce Roripa amphibia, Bess., var. variifolia, Druce, and var. indivisa, Beck Barbarea vulgaris, Br., var. decipiens, Druce Erysimum cheiranthoides, L. Thlaspi arvense, L. Lepidium campestre, L. Reseda lutea, L. R. Luteola, L. Viola hirta, L. Stellaria aquatica. Scop. Arenaria leptoclados, Guss. Sagina apetala. Hard. Malva moschata, L., var. heterophylla, Lej. Erodium moschatum, L'Her. Geranium pratense, L. Trifolium striatum, L. — arvense, L. Lathyrus Nissolia, L. Alchemilla vulgaris, var. filicaulis (Buser) Pyrus communis, L. — Aria, Ehrh. Rubus rhombifolius, Weihe Rosa Eglanteria, L. (rubiginos.i) — moUissima, Willd., var. subglobosa (Sm.) Druce Myriophyllum verticillatum, L. — spicatum, L. Hippuris vulgaris, L. Callitriche stagnalis, Scop. — intermedia, Hoffm. (C. hamulata, Kuetz.) Ribes Grossularia, L. Lythrum Hyssopifolia, L. Bupleurum rotundifolium, L. Silaus flavescens, Bess. Cicuta virosa, L. Extinct Caucalis daucoides, L. — arvensis, Huds. CEnanthe crocata, L., Beck. Extinct Cerefolium Anthriscus, Beck Slum erectum, Huds. Viburnum Opulus, L. Galium tricorne, Stokes [Petasites fragrans, Presl.] Chrysanthemum segetum, L. Erigeron acre, L. Anthemis ar'ensis, L. Bidens tripartita, L. Centaurea Calcitrapa, L. Centaurea Cyanus, L. Cichorium Intybus, L. Lactuca muralis, Fresen. Leontodon hirtum, L. Legousia (Specularia) hybrida, Del. [Vinca minor, L.] [ — m.ijor, L.] Er)'thraEa Centaurium, Pers. and var. alba Limnanthemum peltatum, Gmel. (?in Northants) [Verbascum Blattaria, L.] Antirrhinum Orontium, L. Melampyrum cristatum, L. Euphrasia nemorosa, Pers. Orobanche majus, L. (O. elatior, Sutt.) Verbena officinalis, L. Calamintha montana. Lam. (menthifolia, Host.) Nepeta Cataria, L. Salvia Verbenaca, L. Stachys arvensis, L. — ambigua, Sm. Marrubium vulgare, L. Teucrium Scordium, L. Extinct Hyoscyamus niger, L. Lithospermum ar'ense, L. Myosotis cespitosa, Schultz. — versicolor, Sm. — collina, Reichb. [Borago officinalis, L.] Cynoglossum officinale, L. Anagallis femina. Miller (coerulea) Chenopodium polyspermum, L. — rubrum, L. — Bonus-Henricus, L. Atriplex deltoidea, Bab. Rumex pulcher, L. — acutus, L. Polygonum Bistorta, L. Euphorbia platyphyllos, L. Stratiotes Aloides, L. Extinct Habenaria viridis, R. Br. Narcissus Pseudo-Narcissus, L. Allium oleraceum, L. ? Carex vulpina, L., var. nemorosa, Rebent. — pendula, L, — vesicaria, L. Festuca rigida, Kunth. — ovina, L., var. paludosa. Gaud. Poa pratensis, L., var. subcoerulea (Sm.). Hordeum nodosum, L. (pratense) Phyllitis Scolopendrium Ceterach officinarum, Willd. Ophioglossum vulgatum, L. Pilularia globulifera, L. Extinct Nitella opaca, Ag. In this district I have recently gathered a species of grass which I had the pleasure of discovering some years ago in Oxfordshire. It was then considered to be a variety of the common soft brome grass {Bromus hordeaceus, or as it is more commonly called Bromus mollis), but subsequent cultivation and more complete examination showed it to be a distinct species, which differs from all other British grasses by having the inner palea split to the base instead of being entire. As I have found it in many counties of Britain, including Buckinghamshire and Lincolnshire, we well might expect it to occur in our area. The locality I found it in 78