MASSEE AND CROSSLAND : FUNGUS FLORA OF YORKSHIRE. 59 



gate-post, appearing in Nov. for eight years in succession (Fl. 

 Hx.). Recorded in error as P. Rtitha;, 'Nat.', June 1894, ?• 166. 

 N.W.— Masham (' Nat.,' May 1903). 



306. Pleurotus mitis (Pers.) 



S.W. — Roche Abbey \'aliey ; on larch in wood-yard. 

 Steeton (Lees' Fl.). Melton Woods (F.F., 1901). On wet 

 ash-board near water-tap in shop cellar, Hx. (Fl. Hx.). On 

 old damp orange box, Hx. (C. H. Broadhead, Oct. 1903). 



S.E.— Boynton (W.W.S.). Skipwith. 



Mid W.— Stainer Wood. 



N.E. — Scarborough. Mulgrave Woods (F.F., 1900). 

 Helmsley (H. Slater, ' Nat.', Nov. 1903). 



N.W. — Masham (' Nat.', Jan. 1902). 



307. Pleurotus limpidus Fr. 

 N.E. — Scarborough. 



Mid W.— Bramham (F.F., 1898). 



308. Pleurotus reniformis Fr. 



S.W. — Northdean Wood, Hx. On rotten twigs buried in 

 moss (Fl. Hx.). 



309.' Pleurotus tremulus (Schaeff.). 

 S.W.— Edlington (F.F., 1892). Elland Park Wood, Hx. 

 On the ground under elder-tree (Fl. Hx.). 

 N.E.— Helmsley (F.F., 1903, ' Nat.', Nov.). 



310. Pleurotus acerosus Fr. 



S.W. — Halifax, 1787 (Bolton Tab. 72, f. 3. Ag. planus). 

 Bolton's specimens were found " growing erect on the ground 

 in a steep field by the footway leading from Elland to Mills 

 Bridge." Since found in other parts of England on gravel, 

 lawns, fallen twigs in woods, on pine needles and pine wood, 

 among Sphagnum, dead leaves, etc. A most variable sp. both 

 in appearance and choice of habitat. Bolton's drawing is 

 accepted as representing the typical form. 



On bare ground, Goitstock Wood. 



311. Pleurotus septicus Fr. 



Common in woods, on twigs, dead leaves, dung, decaying 

 flax, other fungi, etc. Generally distributed. 



