. Class-book of botany : being outlines of the structure, physiology, and classification of plants ; with a flora of the United States and Canada . Botany; Botany; Botany. 98 THE FLOSAL ENVELOPS, OB PERIANTH. ing to the law of alternation of organs; two sepals arc united in tho lower lip and three in the upper, as seen in the sage and the Labiate Order generally. Labiate flowers are said to be (jaleate or helmeted when the upper lip is concave, as in catmint; ringent or gaping when the throat or mouth is wide open ; personate or masked when the throat is closed as with a, palate, like the snap
. Class-book of botany : being outlines of the structure, physiology, and classification of plants ; with a flora of the United States and Canada . Botany; Botany; Botany. 98 THE FLOSAL ENVELOPS, OB PERIANTH. ing to the law of alternation of organs; two sepals arc united in tho lower lip and three in the upper, as seen in the sage and the Labiate Order generally. Labiate flowers are said to be (jaleate or helmeted when the upper lip is concave, as in catmint; ringent or gaping when the throat or mouth is wide open ; personate or masked when the throat is closed as with a, palate, like the snapdragon. 484. Orchidaceous, a form of the perianth peculiai' to the Orchis with that large and singular tribe in general. It is a 6-parted double perianth, very irregular, characterized chiefly by its Up (labellum), which is the upper petal (lower by the twisting of the ovary) enlarged and variously deformed. Certain reduced forms of the perianth require notice hero : 485. Pappus {jrdmrog, grandfather, alluding to his gray hairs) is- a term applied to the hair-like calyx of tho florets of the Compositsa and other kindred orders. The florets of this order are collected into heads so compactly that the calyxes have not room for expansion in the ordinary way. The pappus is commonly persistent and often in- creases as the fruit matures, forming a feathery sail to waft away the seed through the air, as in the dandelion and thistle. It varies greatly in form and size, as seen in the cuts, sometimes consisting of scales, ' sometimes of hairs, again of feathers or bristles. Sometimes it is mounted on a stipe, which is the beak of the fruit. 831 333 829 330 828 832. 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 Wood, Alphonso, 1810-1881. New York : A. S. Barnes & Burr
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Keywords: ., bookcentury1800, bookdecade1860, bookpublisher, booksubjectbotany
