TJie Fossil Plants of the Coal Measures. 99 



Medullary Rays. 



B. — p. 200, See CN. 361. 



I-— P- 337. Fig. 33m, CM. 344. Fig. 34m and 35m, C.N. 350. 

 p. 338, Fig. 36m, C.jM. 351. Fig. 37mm', C.N. 350. 



Barred Tracheids in Medullary Rays.* 

 L. — p. 294, Figs. 21 and 22, C.N. 262A. 



Cortex. Younc; State. 

 Innermost Cortex, or Liher. ? 



I-— P- 337, Fig. 33g, C.N. 344. 

 L.— p. 2S5, Fig. 2b,b',b", C.N. 337. 



p. 286, Fig. 4b. C.N. 343. Fig. 5b. See C.N. 344. 

 p. 288, Fig. 8b, C.N. 340. See also C.N. 338. 



Cortex. 

 Middle. 



L.— p. 285, Fig. 2d, C.N. 337. 



Cortex. 

 Outer. 



L.— p. 285, Fig. le, C.N. 335. Fig. 2e, C.N. 337. Fig. 4e, C.N. 343. 

 Prosenchymatous layer of outer Cortex. 



L.-p. 285, Fig. If, C.N. 335. Fig. 2f, CN. 337. Fig. 4ft^ CN. 343. 

 For yet more advanced states see CN. 363 A and B, and 1922D. 



Leaf-traces, t 



I.— p. 338. Fig. 33m, CN. 344. Fig. 34m, CN. 350. Fig. 35m, 



CN. 350. Fig. 36m, CN. 351. Fig. 37m, CN. 350. 

 L.— Fig. 3 c, CN. 339. Fig. 4 c, CN. 342. Fig. 6 c', CN. 347. 



Fig. 7 c, CN, 363. Fig. 8 c', CN. 340. 



Leaves. 



B.— p. 201. Fig. I, 1". See CN. 335, 336, and 337. 

 L.-p. 385. Fig. i,g. CN. 335. 



Branching. 



Equal Dichotomy. 



L.— p. 288. Fig. 8, CN. 340. 



See also CN. 368 and 370. 



Unequal Dichoto7ny. 



CN. 338, CN. i922D.t 



• Some of these in the larger rays certainly belong to leaf-traces. 



tSee also 363B where two lateral branches are given off from opposite sides of the 

 primary one. These are in all probability bundles going to Halonial tubercles, and indicate 

 that the fructification was strobiloid as in other Lepidodendra, but this fructification has not 

 yet been discovered. 



tAn object thus named in some of my Memoirs, especially in L where it is seen, marked 

 g' in figures i, 2 and 4, is now ascertained not to be a large leaf-trace, as formerly supposed, 

 but an organ not uncommon in the leaves of the Lepidodendra and now named the adenoid. 

 The history, and illustrations of its relations to the leaves, are given in Memoir XIX. (BB). 

 See it also in the cabinet specimens 372, 373, 374. 



