. Plant world; its past, present & future; an introd. to the study of botany. Botany. CHAP. FOSSIL PLANTS. 18» feeble attempt at extension about the commencement of the Tertiary period, gradually diminish in importance up to the present time. Uquisetaceoe. The horsetails and their allies, amongst the earliest. Fig. $6. Neuropteris heterciphylla, a fossil fern belonging to the Carboniferous period. (Natural size.) of Vascular Cryptogams, appear late in the Silurian^ attain their maximum in the Carboniferous, and then gradually decrease, being represented at the present day' by only one
. Plant world; its past, present & future; an introd. to the study of botany. Botany. CHAP. FOSSIL PLANTS. 18» feeble attempt at extension about the commencement of the Tertiary period, gradually diminish in importance up to the present time. Uquisetaceoe. The horsetails and their allies, amongst the earliest. Fig. $6. Neuropteris heterciphylla, a fossil fern belonging to the Carboniferous period. (Natural size.) of Vascular Cryptogams, appear late in the Silurian^ attain their maximum in the Carboniferous, and then gradually decrease, being represented at the present day' by only one genus, including about twenty-five species;. these are marsh plants of diminutive size and degraded structure as compared with their forest-forming pro- genitors of the Carboniferous period, such as Gala/mites^. 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 Massee, George, 1850-1917. London, Whittaker
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1891
