. Contributions from the Hull Botanical Laboratory. Plants. SPESSARD—PROTIIALLIA OF LYCOPODIUM 73 cm. above the ground, and another had just emerged from the prothallium. In color it resembled closely the gametophyte of Botrychium virginianum. The specimens of L. clavatiim were much smaller and almost white in color. They varied in size from mm. to 5X3 mm. The largest fragment measured 7X5 mm., and the smallest 2X1 mm. Figs. 6, 7, and 8 show the entire specimens. The fragments were more twisted and wrinkled than. Figs. 16, 17.—Fig. 16, antheridiura of L. clavatiim in sperm mother cell st


. Contributions from the Hull Botanical Laboratory. Plants. SPESSARD—PROTIIALLIA OF LYCOPODIUM 73 cm. above the ground, and another had just emerged from the prothallium. In color it resembled closely the gametophyte of Botrychium virginianum. The specimens of L. clavatiim were much smaller and almost white in color. They varied in size from mm. to 5X3 mm. The largest fragment measured 7X5 mm., and the smallest 2X1 mm. Figs. 6, 7, and 8 show the entire specimens. The fragments were more twisted and wrinkled than. Figs. 16, 17.—Fig. 16, antheridiura of L. clavatiim in sperm mother cell stage, X365; fig. 17, archegonium of L. complanatum immediately before neck canal cells break down, the lowest neck canal cell being double, X365. these, but both the fragments and the entire specimens showed a distinct crown on the border, which in one case (fig. 7) was double, the inner crown having an irregular outline. Each of the entire prothallia showed the primary tubercle very distinctly, near the middle, on the ventral side. The prothallia of L. complanatum were all entire except one which had the lower portion broken off. Seven of these prothallia,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hull Botanical Laboratory. [Chicago : University of Chicago Press


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectplants, bookyear1895