. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. SARRACENIA. 347 912. Sarracenia. All of the eight species of this genus have hollowed phjllodia, which form slender pitchers or urns. In the best-known species, S. purpurea,Hhe urn is generally so held that rain can fall directly into it; in fact, the upright foliar expansion would seem to insure that none be lost. In S. flava, Drum- mondii, and rubra, the pitchers are more nearly vertical, and the lid at the mouth of the tube so disposed when the leaf is youn
. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. SARRACENIA. 347 912. Sarracenia. All of the eight species of this genus have hollowed phjllodia, which form slender pitchers or urns. In the best-known species, S. purpurea,Hhe urn is generally so held that rain can fall directly into it; in fact, the upright foliar expansion would seem to insure that none be lost. In S. flava, Drum- mondii, and rubra, the pitchers are more nearly vertical, and the lid at the mouth of the tube so disposed when the leaf is young as to shed for the most part rain that falls thereon ; but in the older leaves the lid becomes some- what erect. Even in the latter position a por- tion of the rain that falls upon the leaves is car- ried off. In the re- '^'* maining species, S. variolaris and psittacina, the lid is a roof which keeps the rain from entering the tube. In all the cases there is usually- considerable water in the pitchers ; in the last two species it probabl}' all comes from within as a se- cretion. 913. Sarracenia variolaris has been long known to at- tract insects to the leaves. Passing over the earlier no- li % tices referred to in the Bib- 159 160 liography, page 351, the following quotation from MacBride,'' written in 1816, will indicate sufficiently the char- â acter of the attraction : â. 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 Goodale, George L. (George Lincoln), 1839-1923. New York [etc. ] : American Book Co.
Size: 1210px × 2065px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectplantanatomy, bookyea
