LYCOPODIALES— LEPIDODENDEE.E— LBPIDOPHYLLUM. 215 



The laro-er portion of a coiie about which a number of bracts are scat- 

 tered is illustrated in Fig. la, PI. LIX. The contraction at the base indicates 

 that we have nearly the full leng-th of the strobile, which may be immature, 

 the bracts near the top being small and short, wliile those near the base of 

 the specimen show blades having all the characters of those described above. 

 Although the details of the interior of the cone are totally obscured by the 

 mass of compressed sporocysts and sporangiophores through which the 

 spores are at a few points dimly expressed, the diameter of the cone is such 

 as to require sporangiophores of the length seen in the detached bracts; and 

 there is hardly room for doubt that we have before us the cone or Lepid'o- 

 strohus of Lepidophyllum Jenneyi, the upper small and immature bracts still 

 adhering to the axis. While the contraction toward the base, especially 

 noticeable on the right, suggests an oval or ovate form for the cone, this 

 individual specimen does not warrant definite conclusions on that point. 



In Fig. 2, PI. LIX, an illustration is given of one of two specimens 

 in which the margins of the sporangiophores appear to be completely folded 

 over inward. 



In the same shales are found a number of partially compressed sub- 

 cyhndi-ical, rounded sporangia whose size and mode of occurrence indicate 

 their origin in cones of the type illustrated. These sporangia, which may 

 be designated as Lepidocystis Jenneyi, appear distinct from any other that 

 I recollect having seen. An example is shown in Fig. 3, PL LIX. The 

 sporangium wall appears rather thick and shining, the impression of the 

 contents being very obscure. From the surface of the flattened cone, how- 

 ever, it appears that some at least of the Lepidocysts contain rather small 

 macrospores. The characters of the surface of the spores are too obscure 

 for description. 



To the distinctions between Lepidopliyllum Jenneyi and the most nearly 

 related species, L. ovatlfolium Lx., already indicated, may be added the 

 generally shorter and more obtuse blades, as well as the shorter sporangio- 

 phores of the latter. The frequency of Lepidopliyllum Jenneyi at Owen's 

 coal bank, a locality at which Lepidodendron Brittsii is abundant, suggests 

 a possible specific identity between those two types. 



Localities.-Owen's coal bank, U. S. Nat, Mus., 6054, 6079, 6080; 

 Pitcher's coal bank, U. S. Nat. Mus., 6078. 



