008 MR. L. LEWTON-BRAIN ON THE ANATOMY 
EXPLANATION OF THE PLATES. 
FicuREs 1 to 52. Diagrams of transverse sections of leaves, outlines with the camera lucida and magnified 
about 60 diameters. The crossed lines represent stereome ; circles with dots, vascular bundles; 
crescents with perpendicular lines, motor cells ; black spaces, air-lacunz ; the epidermis is repre- 
sented by a single line. 
PLATE 36. 
Fig. 1. Mibora verna. Fig. 9. Elymus arenarius. 
3. Nardus stricta. 10. Agrostis vulgaris, var. pumila. 
9. Festuca ovina. | ll. Festuca elatior, var. arundinacea. 
4. The same. 12. Psamma arenaria. 
9. Aira precox. 13. Agropyrum junceum. 
6. A. flexuosa. 14. Elymus arenarius. 
7. Festuca rubra. 15. Koeleria cristata. 
8. Lepturus filiformis. | 16. Hordeum maritimum. 
PLATE 37. 
Fig. 17. Festuca duriuscula. Fig. 23. Poa rigida. 
18. Alopecurus pratensis. : 24. Lolium temulentum. 
19. Agrostis canina. 25. Alopecurus alpinus. 
20. dira cespitosa. 26. Bromus asper. 
21. Alopecurus geniculatus. 27. B. sterilis. 
22. Agrostis Spica-venti. 28. Avena pratensis. 
PLATE 38. 
Fig. 29. Molinia cerulea. Fig. 85. Milium effusum. 
90. Hierochloé borealis. 96. Setaria viridis. 
31. pe glomerata. 37. Glyceria aquatica. 
32. Melica uniflora. 98. Catabrosa aquatica. 
33. shee alpina. 39. Glyceria fluitans. 
94. Triodia decumbens. 40. Hordeum pratense. 
| PLATE 39, 
Fig. 41. Bromus mazimus. Fig. 47. Poa bulbosa. 
42. Holcus mollis. 
49. H. lanatus. 
44. Lagurus ovatus. 
45. Digraphis arundinacea. 
46. Phleum pratense. 
48. Phleum pratense, var. nodosum. 
49. Arundo Phragmites. 
50. Festuca elatior. 
51. Cynosurus echinatus. 
52. Phleum alpinum. 
