. The classification of flowering plants. Plants. Ill] GNETACEAE 119 reduced scale-like form characteristic of the adult, as in Ephedra vulgaris (fig. 45); or, as happens in Ephedra altissiina, the few first pairs are subulate or linear in shape, similar to but much shorter than the cotyledons. The grown plants are much branched and of a bushy habit, from a few inches to twenty-five feet high; some are climbers. The stem and branches are slender and round, green or grey in colour, and marked with numerous fine longitudinal ridges. The leaves are reduced to scales, pale in colour, which sheathe
. The classification of flowering plants. Plants. Ill] GNETACEAE 119 reduced scale-like form characteristic of the adult, as in Ephedra vulgaris (fig. 45); or, as happens in Ephedra altissiina, the few first pairs are subulate or linear in shape, similar to but much shorter than the cotyledons. The grown plants are much branched and of a bushy habit, from a few inches to twenty-five feet high; some are climbers. The stem and branches are slender and round, green or grey in colour, and marked with numerous fine longitudinal ridges. The leaves are reduced to scales, pale in colour, which sheathe the nodes, generally in. Fig. 46. A, B, D, E. Ephedra Alte (after Brandis, Forest Flora). A. Branch bearing male spikes, x |. B. Single male jflower with subtending bract, enlarged. C. Floral diagram (male) with subtending bract of E. altissima. After Eichler. D. Branch bearing female spikes, x ^, E. Single female spike, nat. size, F. Female spike of E. altissima cut longitudinally, shewing two pairs of sterile bracts and an upper pair of fertile bracts, each of which subtends a flower, enlarged; p, perianth; /, integument. After Eichler. G. Early stage in germination of oospore in E. altissima, shewing four independent cells which in the next figure H (later stage of same) have developed to form each a suspensor bearing an embryonic cell. G, H x 15. After Strasburger. opposite-decussate pairs (fig. 4G, A), occasionally in whorls of three members. Rarely is there a rudimentary blade. The flowers are diclinous, generally dioecious, and are borne in terminal or axillary spikes (fig. 46, A, D). The male flowers (fig. 46, B) stand singly in the axils of decussate bracts (rarely are the bracts arranged in Avhorls of three). The perianth. 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 Rendle, A. B. (Alfred Barto
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1904
