By Thomas Bruges Flower, Esq. 309 



North Division. 



4. North-tvest District. In the canal at Limpley Stoke, " and in 

 a bog between South Wraxhall and the old Horse and Jockey/' 

 Flor Bath. 



5. North-east District. " Water meadows, Preshute/' " Side of 

 Kennet, near Axford," Flor. Marlb . Not a common plant in iJie 

 county. Stems vary from 1 to 2 feet or more in height, smooth to 

 the touch and distinctly striated. The branches are of variable 

 length and number in each whorl. Sheaths short, closely fitting to 

 the stem, terminating in from 1 6 to 29 sharply-pointed dark brown 

 or blackish teeth. The cone is ovate, about 1 inch long, and usually 

 invested at its base, by the terminal sheath. From ^. palustre, the 

 following species, it is at once distinguished by its thicker, smooth 

 jiot furrowed, but copiously striated stems. 



5. Yi. palustre, (Linn.) marsb Horse-tail. Bngl. Bot. t. 20, 21. 

 iS. 6. N. 43, 47 and 49. 



Locality. In marshes and watery places^ especially in a black 

 boggy soil, often accompanying E, limosum. P. Fl. June, July. 

 Area, 1, 2, 3, 4, 5. Recorded iti all the Districts. Stems from 1 

 foot to 18 inches high, rough and generally branched throughout. 

 The branches are simple, and the number in each whorl varies from 

 6 to 10, being frequently less. Sheaths pale coloured, loose, and 

 inflated, terminating in acute wedge-shaped dark brown teeth. 

 Barren stems whip-shaped at the end. Cone terminal, obtuse. The 

 variety Polystachion, in which the branches of one or two of the 

 uppermost whorls terminate in small cones, occm-s in a pond at Spye 

 Park {Disi. 4). 



[6. E. hyemale, (Linn.) rough Horse-tail, Fngl. Bot. t. 915, 8. 8, 

 N. 17, is given, on the authority of Raj-, in "Camden^s Britannia,'" 

 as occurring in a river near Broadstitch Abbey (Bradenstoke Abbey), 

 plentifully {Dist. 4). I cannot ascertain if this plant has been 

 recently observed in the above-mentioned locality.] ^ 



• To those students who are interested in the structure of this Order, I 

 would particularly refer them to Dr. W. R. M'Nab's valuable paper "On the 

 Organization of Equisetums, and Calamites," recently published in the Trant. 

 Bot. Soc. £dm. vtl. xi., part m.—T,£.F. 



