492 
PEOPESSOE HENFEET ON THE ANATOMY OF YICTOEIA EEGLA. 
Fiff. 31. A somewhat more advanced flower-bud seen from above, with the sepals 
turned back ; 5, perpendicular section ; c, perpendicular section of one rather 
older. 
Fiffs. 32-35. Successively more advanced stages. 
Fig. 36. Perpendicular section, as in fig. 35, with the columeUa cut out to s ow t e 
carpels. 
Fig. 37. Perpendicular section of the elevated receptacle in fig. 36. 
Fig. 38. Horizontal section of fig. 37 at X, showing the carpels open mternaUy. 
Fig. 39. An older bud. 
Fig. 40. Cross section of its ovarian portion, showing the carpellary cells close . 
Figs. 41-43. Successive stages. 
PLATE XXXI. 
Figs. 44, 45. Successive stages; 45 cross section. 
Fig. 46, Magnified fragment of h in fig. 45. 
Fig. 47. Perpendicular section of a fully-developed flower-bud, showing only one-halt. 
Fig. 48. Magnified horizontal section of fig. 47, at a. 
Fig. 49. Section at h. 
Fig. 50. Section at c. 
Fig. 51. Cross section of a young root. 
Fig. 52. Magnified view of a portion of ditto. 
Yi^. 53. Centre of ditto, more magnified. 
PLATE XXXII. 
Fig. 54. Spongy cortical pai-enchyma, as in figs. 52 and 53, magnified 50 diameters. 
Fig. 55. Perpendicular view of one of the septa in fig. 54, mi^nified 50 diameters. 
Fig. 56. Perpendicular section of the origin of a root -.—vb, central vascular cord ^ 
I, large lacunse. 
Fig. 57. Portion of a vascular bundle, near the origin of a root-bundle: magnified 1 
diameters. 
Fi-. 58. Perpendicular section of I in fig. 56, showing that the lacunse of the roots do 
not communicate with the air-cavities in the stem, and that the walls are 
thickened by a sort of cuticle : magnified 100 diameters. 
Fig. 59. Cross section of a petiole. 
Fig. 60. The same, magnified : the white spaces are air-canals ; the shaded spaces fibrous 
bundles, composed of dense cellular tissue. 
Fig. 61. Highly magnified fragment enclosed in the square space a of fig. 60. 
Fig. 62. Cross section of a flower-stalk. 
Fig. 63. The same, magnified. 
