88 



CANADIAN FOSSILS. |. 



Fig. 36. Prolotaxitet Logani,— Three wood-oella, showing ipiral fibres and obaciiro pores 

 at a, a, 300 diameters. 

 27. Transverse section of {wrtion of root, 100 diameters. 



Platb III. SUrnbergia, Stigmaria, Didymophyllum, Cyimritcs, Calamodendrmi, 



Pig. 28. Stcmbtrgia /'«M,— probably of Dailoxylon, from Lepreau, nat. si/e. 



29. From St. John, showing indications of tlie wood at the sidBs, (a, a).^ 



30. Stigmaria exigua, — Specimen from Elniira, N.Y., half nut. size ; 30a, areole enlarged. 



SI. Stigmaria ptuiUa, — Si>eclmen from Perry, Maine, nat. size. 



32. Stigmaria j^Wa^f,— Specimen from St. John, shewing remains of rootlets at a, a, 



32a, one of the areoles. 

 33 Stigmaria areoUtlii, — Specimen from Oasp6. 



34. Stigmaria minutisiima, — Specimen from Ga8p6 ; 34a, areole enlarged. 

 36. Didymophyllum ^l!ni^/m«,— Specimen from N. York ; 35a. areole enlarged. 

 36 and 37. Cyperitei, — (leaves of Sigillai la) St. John. 

 38. Cyperitet, — Perry, Maine. 

 30. Calamodendron antiquius, — Specimen from Lepreau, showing remains of woody 



cylinder at a, a. 

 40. Calamodendron tenuittriatum, — Specimen from Lepreau. 



Platb iv. Calamitei, 

 \ 



Fig. 41. Calamitei tramitionis, — Flattened stem ; 4 la, areole of the same. 



42. Branch with leaves; 42u, leaf restored; 42b, leaf magnified, showing 



transverse niarl<ing!i. 



43 and 45. Small stems or branches, with leaves. 



44. Stem with loaves. 



46. Diagram of ribs and scars. 



47. Calamites camia/ormis, — Base of stem, showing ribs and areoles, 47a, areole en- 

 larged. 



48. Diagram of ribs and areoles. 



49. Calamites sp, — Fragment showing ribs with remains of outer envelope at a and b. 



Platb v. Atterophyllitet, ^c. 



60. Aiterophyllitei latifolia, — Branch with pinnae bearing whorls of leaves. 

 61. Branch with whorls of larger leaves; 51a, leaf showing form and vena- 

 tion. 



62. Termination of a stem or branch. 



63. Portion of fructification. 



54. Atterophyllites acicularis, — Branch with pinnules bearing whorls of leaves; 54a 



Separate leaf ; 64b. annulus uniting leaves ; 64c, part of a whorl o 

 larger leaves, 

 and 56. Fructification. .;...)(., vs ,,-., .., 



Fig. 



1^ 



'-''{ 



a V-- 



66 

 57 

 58 

 69 

 60, 

 61, 

 62 

 63, 



Fragment of stem. 



Asterophillites iicutigera,—68A, node showing the scales or tubercles. 



Terminal bud or fructification. 



Antcrophyllilei lenta, — Stem and leaves ; 60a, separate leaf. 

 Sphenophyllum antiquum, — Branch with whorls of leaves. 



— — Leaflet enlarged. Natural size at b. 



Sheath or whorl of bracts. Nat. size and enlarged. 



Fig. 



Platb vi. Annularia laxa, ^c. 

 C4. Annularia laxa, — Scattered wliorls and stems. 



65, 66, 67, 68. 

 69. 



Separate whorls. 



Portion of whorl enlarged, showing venation. 



m: 



- 



I 



