260 On a Cone of Calamostachys binneyana. 
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idem. (95). “On the Structure of the Leaves of Catamites." Mem. and 
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1895. 
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No. 5, 1899. 
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Dumfriesshire.” Trans. Roy. Soc. Edin., Vol. XL., 
Pt. IV., 1903. 
Lignier, O. (03). “ Equisetales et Sphenophyllales. Leur origine filicineenne 
commune.” Bull. Soc. Lin. de Normandc, ser. 5, 
Vol. 7, p. 93 1903. 
Ludwig, R. (61). “ Palaeontographica.” Vol. X., 1861. 
Schimper, W. P. (69). “ Traite de Paleontologie vegetale.” Paris, 1869. 
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geologischen Specialkarte von Pi-eussen. Band II., 
1876. 
idem. (84). “ Steinkohlen-Calamarien.” Part II. Ditto. Band V., 
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Williamson, W. C. (73). “On the Organisation of the Fossil Plants of the 
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1873. 
idem. (80). Ditto. Part X. Phil. Trans., Vol. 171, 1880. 
idem. (81). Ditto. Part XL Phil. Trans., Vol. 172,1881. 
idem. (89). Ditto. Part XV. Phil. Trans., Vol. ISO, 1889. 
Williamson, W. C. and Scott, D. H. (94). “ Further Observations on the 
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Zciller, R. (86). “ Flore fossile du bassin Houiller de Valenciennes.” Paris, 
1886—88. 
EXPLANATION OF THE PLATE. 
Fig. 1. Longitudinal section through the cone (Slide No. 1). Is., leaves at 
the base ; a., “ annulus” ; by., bracts. The section passes tangentially 
through the whorls of leaves at the base. x4. 
Fig. 2. The same to show the “annulus” (a), b., bracts of lowest whorl; 
Is., leaves; A., hairs, x 18. 
Fig. 3. Tangential section through the leaf whorls (Slide No. 1). Leaves cut 
transversely, a., near base ; b., near centre ; c., leaf cut longitudinally, 
showing s., sclerenchyma fibres; m., “ melasmatic tissue” of cells 
with black contents;/)., pallisade tissue; li., hairs. x25. 
Fig. 4. One of the cones with attached leafy shoot on slab in Sedgwick 
Museum from Raven Shore, x 3. No. 449. Carbon. Plant Coll. 
