145 
PILULAHIA. 
1419. P. globulifera, Linn. Native. British. 
Terfington Carr, and other watery places — Teesdale (B. G. 724). 
Scarborough mere — S. Gibson (Phvt. i. 454). Brickpond near 
Leeming lane — T. Simpson , Pond between Bootham and Gate 
Hehnsley, York — T. A. Smith. Plentiful in Gormire, near Thirsk, 
especially at the north-east corner. 
EQUISETUM. 
1420. E. Telmateia, Ehrh. Native. British. 
E. fiuviatile , Flora, 127. About springs and rivulets, and in boggy 
ground, especially in the more undulated districts ; frequent. 
Occasionally in drier situations. 
1421. E. umbrosum, Willd. Native. Scottish. 
Bank of the Tees, about Lower Cronkley and Wince bridges, and 
below Holwick. 
1422. E. arvense, Linn. Native. British. 
1423. E. sylvaticum, Linn. Native. British. 
Boggy places and damp meadows; frequent. 
1424. E. palustre, Linn. Native. British. 
F. palustris, Flora, 128. Varieties nudum and polystachion, of 
authors, both occasionally occur. 
1425. E. limosum, Linn. Native. British. 
Ponds and watery places; frequent. This includes both E. limo- 
sum and fiuviatile, Fries ; which are considered to he distinct spe- 
cies by that illustrious author, and all the other modern botanists 
of Scandinavia. They appear, however, to he connected, in some 
degree, by intermediate stages of gradation ; but deserve further 
investigation than they have yet received, before this point can 
he confidently decided. (Vide Phyt. iv. 1056, 1117.) 
1426. E. hyemale, Linn. 
1428. E. variegatum, Selil. 
Native. Scottish. 
Native. Scottish. 
K 
