AGROSTIS. 395 



2. A. interrupta (Beauv.); pan. close, anth. oval. — E. B. S. 

 2951. — St. 1 — 2 ft. high. Pan.-branches dividing from their 

 base, never spreading. Awn 3 or 4 times exceeding the pale. — 

 Sandy fields. Pampisford and Chippenham, Cambridgeshire. 

 Thetford, Suffolk. A. VI. VII. E. 



21. Agrostis Xmre. Bent-grass. 



1. A. setacea (Curt.); panicle close oblong, branches and 

 pedicels scabrous, gl. unequal acute, lower pale erose at the top 

 4-ribbed, lateral ribs terminating in short setje, kneed and 

 twisted awn from the base of the pale and twice its length, I. 

 setaceous, sheaths rough, ligule oblong acute. — E.B. 1188. P. 

 83. — Root tufted. L. short, involute, almost capillary. Pan.- 

 branches short. Midrib of lower glume scabrous in its upper 

 half, slightly excurrent. Upper pale very minute, a tuft of hairs 

 at its base. — Dry heaths in the south-west. P. VII. E. 



2. A. canina (L.) ; pan. spreading when in flower otherwise 

 close, branches and pedicels scabrous, gl. unequal acute, lower 

 pale erose at the top 4-ribbed, kneed and twisted awn from 

 below the middle of and exceeding the pale, lower 1. setaceous 

 tufted, stem-1. narrow, sheaths smooth, ligule oblong acute. — 

 E. B. 1856. P. 15.— Trading leafy shoots. St. decumbent 

 below, then erect. L. narrow; radical involute. Pan.-branches 

 long, slender. Fl. green or purplish. Lower gl. not erose at 

 the top ; midrib scabrous from rather below the middle. Upper 

 pale 0, or very minute. Awn sometimes very short or rarely 

 absent.— Peaty heaths. P. VII. VIII. 



3. A. vulgaris (With.) ; pan. spreading during and after 

 flowering, gl. nearly equal, lower toothed on the upper part of 

 the keel, ligule short truncate.— £. B. 1671. P. 12. 13.— St. 

 long, ascending or decumbent below and rooting at the knots, 

 sometimes with long prostrate stoles. Sheaths mostly smooth. 

 Pedicels toothed. Fl. rarely awned.— /3. A. pumila "(Lightf ) ; 

 CECspitose, St. 2 — 3 in. high, fl. often awued usually infested with 

 smut. — Rather dry places. P. VII. ^ 



4. A. alba (L.); pan. compact after flowering, glumes nearly 

 equal, lower toothed throughout its keel, ligule long acute. — 

 E. B. 1189. P. 13. 14. — St. procumbent and rooting below, 

 then erect, often with long prostrate stoles. Sheaths roughish. 

 Pan. spreading with flowers, afterwards close. Pedicels very 

 much toothed. Florets rarely awned. — ,3. maritima ; st. pro- 

 cumbent, rooting at the knots, panicle lobed. E. B. 1532. — 

 Fields, &c. /3. Sea-sands. P. VII. 



