. Cactaceous plants: their history and culture. Cactus. LEtrOHIENBEEGIA. 29 Helwingia and Erythrochiton. Lemaire partly adopted thia 7iew regarding the mammae of the three genera Mamillaria, Pelecyphora, and Leuchtenbergia as metamorphosed leaves, the spines representing the veins of the leaves, in which opinion many careful observers agree. Le Maout and Decaisne describe them as " arrested buds," and would thus give them more the nature of branches, while others incline to the view that they are simple elevations of the substance of the stem similar to the ridges in Echinocactus and
. Cactaceous plants: their history and culture. Cactus. LEtrOHIENBEEGIA. 29 Helwingia and Erythrochiton. Lemaire partly adopted thia 7iew regarding the mammae of the three genera Mamillaria, Pelecyphora, and Leuchtenbergia as metamorphosed leaves, the spines representing the veins of the leaves, in which opinion many careful observers agree. Le Maout and Decaisne describe them as " arrested buds," and would thus give them more the nature of branches, while others incline to the view that they are simple elevations of the substance of the stem similar to the ridges in Echinocactus and Oereus. This is a rather difficult plant to grow satisfactorily, but it should be treated similarly to the Mamillarias as regards soil, and most carefully. Fig. 5.—Leuchtenbergia principis (reduced). attended in the supply of water, as the slightest approach to excess will result in serious injury and probably the death of the plant, Leuchtenbeesia pniNCiPis, HooJcer.—In 18i8 au excellent figure of this plant was given in the " Botanical Magazine," accompanied by a full descrip- tion by Sir W. Hooker, which is so graphic that it is here reproduced. " Our largest plant is a foot high, its main trunk erect, but crooked, as thick as a man's arm, clothed with the dense mass of persistent bases of old mamillse, or perhaps rather of the withered mamillse themselves, shrunk and reduced to a mass of closely pressed scales. Above they gradually become more perfect, at first short and truncated till the crown of the plant is clothed with per-. 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 Castle, Lewis. London [Printed at the Horticultural Press]
Size: 1817px × 1376px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectcactus, bookyear1884
