io8 Arber. — Seed Impressions of the British Coal Measures . 
Measures (Farrington Series) of Coal Pit Heath Colliery, near Bristol. Sedgwick Museum, Cam- 
bridge (No. 2032, Carbon. Plant Coll.). Nat. size. 
—Fig. 49. Schizospermum Noeggerathi (Sternb.). View of the apex of the seed showing the three 
valves. From the Middle Coal Measures of Darfield Quarry, Barnsley, Yorks. Sedgwick Museum, 
Cambridge (No. 729, Carbon. Plant Coll.). Nat. size. 
— Fig. 50. Schizospermum Noeggerathi (Sternb.). View of the base of the seed showing the foramen 
and inner cast. From the (?) Middle Coal Measures. Sedgwick Museum, Cambridge (No. 487, 
Carbon. Plant Coll.). Nat. size. 
Fig. 51. Pterospermu?n anglicum , sp. nova. Part of a specimen showing two of the three 
wings. From the Middle Coal Measures of Clays Croft, Coseley, S. Staffordshire. Type specimen 
in the British Museum (Nat. Hist.), No. V. 1183. Nat. size. 
Fig. 52. Pterospermum anglicum , sp. nova. Part of the same specimen as Fig. 51, showing 
one of the wings seen in that figure and a third wing. From the same locality and collection. 
Nat. size. 
