igo FLORA OF THE EAST RIDING OF VOKKSHIKE. 



1555. Luzula erecta. Dcsv., 107. 



(Many-headed Wood-rush). 



Native, Brit., 1-7. May III. 



Also common, but affecting" hedgerows and grassy lanes ; 

 vars. umbellata and congesta, near Swine, Holderness. 



TYPHACE^. 



1556. Typlia latifolia. Li>ni., 81. 



(Great Cat's-tail. " Bullrush "). 



Native, Brit., 1-7. July, III. 



Frequent in disused brick-ponds and sluggish d3"kes in all 

 divisions ; Hornsea, Kelsey Hill Ponds, Leckonfield, Hough- 

 ton Moor, &c. 



1557. T. angustifolia. Linn., 58. 



(Lesser Cat's-tail). 



Native, Eng., i, 2, 5, 6, 7. Jub'> I'^- 



Frequently found with T. latifolia, but generally very 



sparingly. Near Pocklington (B.^; Houghton Moor (Y.N. U.); 



Kelsev gravel pits, near Kevingham* ; Hornsea Mere (C.W.), 



1897.* 



1558- Sparg-anium ramosum. Huds., 30; Agg., 108. 



(Bur-reed). 

 Native, Brit., 1-7. July, II. 



Very common in ponds and dykes in all divisions. 



1560. S. simplex. Huds., 99. 



Native, Brit., 1-7. Aug., II. 



Common in dykes in all the divisions. 



1562. S. minimum. Fr., 54. 



(Floating Bur-reed). 



Native, Brit., Incog. 



As S. natans, rare. In ditches on Swine Moor near 

 Beverley (R.T), not seen recently ; with many other species 

 now probably extinct. 



