72 



J. WATSON, S.J. LYDON & N.A. HARRISON 



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Fig. 34 A-H Sulcatocladus dibbleri sp. nov. A, fragment of shoot showing two decurrent leaf bases separated by suture. V,6459 1 . LM, x 25; B, shoot 

 fragment with two sutures, V.64592, LM, x 25; C, cuticle of shoot in 34A showing longitudinally aligned stomata and fold with suture on left, V.64591 , 

 LM, X 125; D-G, holotype, V.64593; D, cuticle viewed from the outside showing separation of adjacent decurrent leaf-bases by a longitudinal, groove- 

 like suture, SEM, x 250; E, decurrent leaf base cuticle viewed from the inside, showing stomata in a longitudinal row next to the suture, SEM. x 250; F, 

 single stoma viewed from the outside, SEM, x 750; G, single stoma viewed from the inside, SEM, x 750; H, single stoma with prominent guard cells, 

 large lateral subsidiary cells and small polar cells, V.64594. x 500. 



