62 Dr. W. C. Williamson on 



Verticils of 



See C.N. 129*, 130*, 133*, 134*, 135*. 



Roots. 



A. — p. 498, Fig. 35, Mr. Wild's Cabinet, Bardsley, Ashton-under-Lyne, 



Infranodal Canals. 



A.— p. 490-491, Fig. 22I, C.N. 38. Fig. 23I, C.N. 42, Fig. 25I, 



C.N. 37. p. 495. 

 I.— p. 325-26-27, Fig. 24, C.N. 25. Fig. 25, C.N. 25. Fig. 31. 



Museum of Owens College. 



T.— p. 156, Fig. I, p. 163-4, Fig. 6f, C.N. 59. Fig. lof, C.N. 60. 

 Fig. i3f, C.N. 53. 



X.— Fig. 2h. 3h. 



Leaves. 



A.— p. 500. 



FRUCTIFICATION OF CALAMITES. 



AXIS OF STROBILUS. 

 Medulla. 



O.— p. 48, Fig. lb, C.N. no. 2b, C.N. 1583. Fig. 3b, 1567, Fig. 4b, 

 C.N. 1564. Fig. 5b, C.N. 1573. Fig. 6b, C.N. 1569. 



Medullary Cavity. 



O.— p. 48, Fig. la, C.N. no. Fig. 2a, C.N. 1583. Fig. 3a, C.N. 1567. 

 Fig. 4a, C.N. 1564. 5a, 1573. 



Internodal Canals. 



p. 49, Figs. IC-2C, 3c, 4c, 6c. 



Xylem bundles. 



p. 49, Figs. 2d-4d, 5dd', 6dd'. 



Peduncle of. 



p. 51, Fig. II, C.N. 1567. 



Cortex. 



O.— p. 50, Fig. loe, C.N. 1570. 



Peripheral Appendages. 

 Nodal Disk. 



O.— p. 50-1, Fig. ih, C.N. no. Fig. 4e, C.N. 1564. Fig. 5hh, C.N. 

 1573- Fig- 20h. 



LacuncB of Disk. 



O.— p. 50, Fig. li, C.N. no. Fig. 41, C.N. 1564. Fig. i8i, fig. 2oi. 



Marginal Disk Rays. 



O.— p. 50, Fig. 3k', C.N. 1567. Fig. lok', C.N. 1550. Fig. 13k, C.N. 

 1579- Fig. 14k, C.N. 1563. Fig. 20k. 



Sporang iophores. 



O.— p. 52, Fig. Ill', C.N. no. Fig. 2I, C.N. 1583. Fig. 3I, C.N. 

 1567. Fig. loir C.N. 1570. Fig. 12, Fig. 13II', C.N. 1579. 

 Fig. 20I. 



