BOTANY 



The sweet flag [Acorm Calamus) grows in the Exeter canal, where it has long been 

 established and produces catkins. For a discussion on the question whether this plant is 

 native in Britain see Journ. But. i87i,p. 163. 



The deer's-foot grass {Jgrostis setacea) was reported by Hudson in 1778 as occurring on 

 the dry elevated heaths of Haldon near Exeter and elsewhere in Devon ; it is locally 

 abundant. 



The following are among the more remarkable and interesting species which occur in 

 the district : — 



Ranunculus sceleratus, L. 

 Aquilegia vulgaris, L. 

 Nuphar lutcum, Sm. 

 Nasturtium palustre, DC. 

 Barbarea vulgaris, R. Br., sub-sp. 6. inter- 

 media, Boreau 

 Cardamine impatiens, L. 

 Erysimum cheiranthoides, L. 

 Diplotaxis tenuifolia, DC. 

 Viola hirta, L. 

 Linum angustifolium, Huds. 

 Geranium rotundifolium, L. 



— Robertianum, L., var. G. modestum, 



Jordan 

 Genista anglica, L. 

 Medicago maculata, Sibth. 

 Melilotus ofHcinalis, Desv. 

 Lotus angustissimus, L. 

 Potentilla argentea, L. 

 Alchemilla vulgaris, L. 

 Poterium Sanguisorba, L. 



— officinalis. Hook. f. 

 Pyrus tormlnalis, Ehrh. 

 Sedum Telephium, L. 



— reflexum, L. 

 Hippuris vulgaris, L. 



Callitriche verna, L., sub-sp. C. obtusangula. 



Leg. 

 Epilobium lanceolatum, Seb. & Maur. 

 Carum segetum, Benth. 

 Sison Amomum, L. 

 Anthriscus sylvestris, HofFm. 

 Foeniculum officinale, All. 

 CEnanthe pimpinelloides, L. 

 Silaus pratensis, Besser 

 Caucalis arvensis, Huds. 

 Rubia peregrina, L. 

 Galium tricorne, Stokes 

 Valerianella Auricula, DC. 

 Dipsacus pilosus, L. 

 Inula Conyza, DC. 

 Bidens cernuus, L. 



— tripartitus, L. 

 Carduus tenuiflorus, Curtis 

 Picris hieracioides, L. 

 Crepis biennis, L. 

 Tragopogon pratensis, L. 

 Wahlenbergia hederacea, Reichenb. 

 Specularia hybrida, Alph. DC. 

 Lysimachia vulgaris, L. 



Anagallis arvensis, L., var. A. caerulea, 

 Schreb. 



Anagallis tenella, L. 



Samolus Valerandi, L. 



Vinca minor, L. 



Erythraea Centaurium, Pers., sub-sp. E. pul- 



chella, Fries 

 Lithospermum arvense, L. 

 Verbascum Blattaria, L., sub-sp. V. virgatum, 



Stokes 

 Linaria repens. Miller 

 Sibthorpia europsea, L. 

 Bartsia viscosa, L. 

 Orobanche major, L. 



— minor, Sutton 

 Pinguicula lusitanica, L. 



Thymus Serpyllum, L., sub-sp. T. Chamse- 



drys. Fries 

 Calamintha Acinos, Clairv. 

 Salvia Verbenaca, L. 

 Scutellaria minor, L. 

 Melittis Melissophyllum, L. 

 Galeopsis Ladanum, L. 

 Leonurus Cardiaca, L. 

 Scleranthus annuus, L. 

 Chenopodium polyspermum, L. 

 Hydrocharis Morsus-ran2e, L. 

 Malaxis paludosa, Sw. 

 Neottia Nidus-avis, L. 

 Spiranthes autumnalis. Rich. 

 Epipactis latifolia, All. 

 Galanthus nivalis, L. 

 Polygonatum multiflorum. All. 

 Luzula Forsteri, DC. 

 Sparganium simplex, Huds. 

 Lemna trisulca, L. 



— polyrrhiza, L. 

 Butomus umbellatus, L. 

 Scirpus sylvaticus, L. 



Carex muricata, L., sub-sp. C. divulsa, 

 Good. 



— pallescens, L. 



— Pseudo-cyperus, L. 



Alopecurus geniculatus, L., sub-sp. A. bul- 



bosus, Gouan 

 Calamagrostis lanceolata. Roth 

 Trisetum flavescens, P. Beauv. 

 Avena fatua, L. 



Glyceria fluitans, L., var. G. plicata. Fries 

 Bromus erectus, Huds. 



— madritensis, L. 

 Hordeum pratense, Huds. 



The literature dealing with the flowering plants of the district includes the following 

 works : — 



George Stacey Gibson in the Phytokglst, ii. 676-83, 'Notice of some localities of plants in 

 Cornwall, etc., in the 8th month, 1846,' p. 683, Exeter, 1846 (f). 



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