. Foundations of botany. Botany; Botany. 22 FOUNDATIONS OF BOTANY 1. S. variabilis, var. latifolia, Willd. Broad-leaved Arrow- head. Leaves very variable in size and shape, from broadly sagittate to linear; those growing on the drier soil being usually the broader; petioles 6-30 in. long. Scape smooth or slightly downy, 6-36 in. high; bracts acute. Flowers monoecious or sometimes dioecious, white, 1 in. or more in width; pedicels of the staminate flowers twice the length of those of the fertile flowers. Filaments long, smooth, and slender. Akenes with beak nearly horizontal. Ditches and muddy
. Foundations of botany. Botany; Botany. 22 FOUNDATIONS OF BOTANY 1. S. variabilis, var. latifolia, Willd. Broad-leaved Arrow- head. Leaves very variable in size and shape, from broadly sagittate to linear; those growing on the drier soil being usually the broader; petioles 6-30 in. long. Scape smooth or slightly downy, 6-36 in. high; bracts acute. Flowers monoecious or sometimes dioecious, white, 1 in. or more in width; pedicels of the staminate flowers twice the length of those of the fertile flowers. Filaments long, smooth, and slender. Akenes with beak nearly horizontal. Ditches and muddy places.* 2. S. graminea, Michz. Gkass-leaved Sagittaeia. Leaves long-petioled, lanceolate, or eUiptical, and acute at each end, 3-5- nerved, or often linear, the earlier often reduced to flattened petioles. Scape slender, usually longer than the leaves, simple, weak, often pros- trate in fruit; bracts small, ovate, connate at the base. Flowers monoe- cious or dioecious, on long, thread- like pedicels, about ^ in. wide. Stamens 10-20, filaments downy. Akenes nearly beakless. In ditches and shallow pools.*. 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 Bergen, Joseph Y. (Joseph Young), 1851-1917; Eastwood, Alice, 1859-1953. Boston, Ginn & Co.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1901
