. The botany of crop plants; a text and reference book. Botany, Economic. CHAPTER XXVIII DRUPACE^ (Plum Fanuly) Habit, Stems.^—Representatives of the plum family are trees or shrubs. The bark exudes a gum, and the leaves, bark, and seeds are bitter, and contain prussic acid. Many- cases of poisoning have been recorded from eating the seeds of peach and bitter almond, and it is also known that stock is poisoned from eating the leaves of wild cherries. The glucoside, amygdalin, acted on by emulsin, an enzyme, in the presence of water is changed to prussic acid, grape sugar, and benzaldehyde. Pru
. The botany of crop plants; a text and reference book. Botany, Economic. CHAPTER XXVIII DRUPACE^ (Plum Fanuly) Habit, Stems.^—Representatives of the plum family are trees or shrubs. The bark exudes a gum, and the leaves, bark, and seeds are bitter, and contain prussic acid. Many- cases of poisoning have been recorded from eating the seeds of peach and bitter almond, and it is also known that stock is poisoned from eating the leaves of wild cherries. The glucoside, amygdalin, acted on by emulsin, an enzyme, in the presence of water is changed to prussic acid, grape sugar, and benzaldehyde. Prussic acid is deadly poisonous even in small amounts. are com- The often. Leaves.—The leaves alternate, petioled and monly finely toothed, teeth and petiole are glandular (Fig. i6i); the stipules are early deciduous. Flowers.—The perfect, regu- lar flowers (Fig. 162) are solitary (apricot), or in racemes (wild black cherry, etc.), umbels (sweet cherry, etc.), or corymbs (perfumed cherry). The calyx is free from the ovary, five-lobed, bell-shaped or 391 Pig. 161.—Leaf of peach (Amygdalus persica). The base of the leaf considerably enlarged, in 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 Robbins, Wilfred William, 1884-1952. Philadelphia, P. Blakiston
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectbotanyeconomic
