974 CRYPTOGAMIA. MISCELLANEA. Equisetom. 
E. palus'tee. Stem angular: leaves unbranched. 
Bolt. Fil. 35; Barren plant 16. 37— (E. Bot. 2021— FI. Dan. 1183. E.)— 
Loh. Ic. i. 795. 1— Ger. Em. 1114. 4— Park. 1200. 3— Trag. 694— Lon. 
i. 176. 3— C. B. Th. 247, left hand stem — Gars. 258. B. fructification — 
Hedw. Th. 2. 8. 9. 10. 
Boot black. Stem smooth. Leaves six to ten, furrowed, smooth, with 
black scales at the base. Leers. Barren-leaves resemble those of E. 
arvense , but the second leaves in that species are four-sided, and the 
sheaths have four teeth, whilst in this species they are five-sided, and the 
sheaths have five teeth. Bolt. 
Marsh Horse-tail. Puddock (Frog) Pipe in Scotland. (Welsh: 
Bhaivn y march y gors. Marshy and watery places. P. June—July.* * 
Var. 2. Many-spiked. Spikes terminating the upper leaves as well as the 
stem. 
Bay. 5. 3. at p. 160. 
This variety generally arises when the primary stem has been bitten off. 
Bolt. 
E. fluviat'ile. (Sterile stems beset with innumerable, roughish, 
doubly-angular, branches; flowering ones unbranched, with 
numerous crowded, deeply toothed sheaths. Sm. E.) 
Bolt. Fil. 36. 37— {E. Bot. 2022—FI. Dan. 1469. E.)— Matth. 1026— Dod. 
73. 1— Lob. Obs. 461. 1, Ic. i. 793— Ger. Em. 1113. 1— Park. 1200. 1— 
Ger. 955. 1— C. B. Th. 241— Blackw. 217. 1 and 2 — Cam. Epit. 770. 
B. C.—Gars. 258. A. 
{Fertile stems appearing first, a foot high, very robust, terminated by an 
oblong spike, two inches long or more; sheaths numerous, imbricated 
below. Sterile stems two to five feet high, sometimes near an inch in 
diameter at the base, with a great number of joints, and a profusion of 
long, simple, verticillate branches. Grev. E.) Sheaths of the barren 
stems surrounded at the top with a well defined blackish brown band: 
teeth lighter brown, smaller and narrower than those of the fertile stems. 
Leaves from three to fifteen inches long, very closely set. This species 
may be readily known at first sight by its great size, numerous leaves, 
and whitish stem. Woodw.; (or, on more minute inspection, (as first 
observed by Mr. J. S. Sowerby) by the five angles of the branches of the 
sterile stems having each a longitudinal furrow. E.) 
Great Water Horse-tail. (E . Telmateia. FI. Dan. Irish: Irebull. 
Cait i Callagan. Welsh: Bhawn y march afonawl. Gaelic : Ear-bull- 
eich. E.) Marshy and watery places, sides of rivers, ditches, pools, and 
lakes. Not very frequent; cold springs at Barnby near Lowestoft; be¬ 
tween Bungay and Halesworth, and St. Faith’s Newton Bogs, near 
Norwich. Mr. Woodward. (Lower end of Lasswade Paper-mill. Mr. 
Neill. Koslin woods. Dr. Greville. Old Eden; Banks of Emont, and 
Keswick. Hutchinson. This singular and elegant plant flourishes many 
To the agriculturist these weeds are injurious, wide spreading, and difficult of extirpation. 
Under-draining will probably be found the most effectual practice. Fhynchcenus Equiseli 
feeds upon the different species. E.) 
* (This, like most of its congeners, is considered prejudicial to cattle. E.) 
