. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. SPERMATOPHYTA—GRAMINEAE—GRASSES 341. Fig. 139. Vanilla grass {Hierochioe odor- ata). a. Spikelet with nearly equal lower glumes; b, with lower glumes removed, showing third and fourth scabrous glumes; c, palea with stamens; d, pistil. (Div. of Agros. U. S. Dept. of Agric). the terminal, staminate inflorescence forms the "spindle" and the long, pro- jecting styles of the pistillate flowers constitute the "silk"; th
. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. SPERMATOPHYTA—GRAMINEAE—GRASSES 341. Fig. 139. Vanilla grass {Hierochioe odor- ata). a. Spikelet with nearly equal lower glumes; b, with lower glumes removed, showing third and fourth scabrous glumes; c, palea with stamens; d, pistil. (Div. of Agros. U. S. Dept. of Agric). the terminal, staminate inflorescence forms the "spindle" and the long, pro- jecting styles of the pistillate flowers constitute the "silk"; the cob is formed by the union of the axes of several female spikes into a much thickened body. The 1 or 2 species are of American origin, presenting many varieties in cultivation known as corn, Indian corn or maize {Zea Mays). Dr. Sturtevant has arranged cultivated corn into the following groups: Pod-corn, Zea tunicata. Pop-corn, Zea everta. Flint-corn, Zea indurata. Dent-corn, Zea indentata. Soft corn, Zea amylacea. Sweet corn, Zea saccharata. Starchy sweet corn, Zea ainyleasaccharata. The so-called species and groups of Dr. Sturtevant are hardly to be re- garded as varieties. Some of the forms under conditions of culture and climate, revert to the original 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 Pammel, L. H. (Louis Hermann), 1862-1931. Cedar Rapids, Ia. , The Torch Press
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