Hygienic and Therapeutic Relations of House Plants

J. M. Anders
1880 Botanical Gazette  
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more » ... out Early Journal Content at http://about.jstor.org/participate--jstor/individuals/early-journal--content. JSTOR is a digital library of academic journals, books, and primary source objects. JSTOR helps people discover, use, and build upon a wide range of content through a powerful research and teaching platform, and preserves this content for future generations. JSTOR is part of ITHAKA, a not--for--profit organization that also includes Ithaka S+R and Portico. For more information about JSTOR, please contact support@jstor.org. 8o BOTANICAL GAZETTE. of soulth-eastern Arizona, by Wm. M. Courtis. Mr. Davenport considers it one of the most elegant species yet discovered and so different from any known form that, although the material is scanty, he has no doubt as to its claim to rank as a genuine species. "There is no other species with which it can be compared. Under the microscope, the white powder (upon the fronds) separates into distinctly stalked gland like bodies with enlarged conical, flat or inverted heads like a miniature host of fungi, with their variously shaped caps. With a power of 2o0 diameters, or even less, the scales of the frond appear to be composed of elongated, cylindrical, tapering tubes, containing a light brown coloring matter, collected into a mass at the base, or in spots at intervals throughout the length of the otherwise whitish scales, which are thus made to appear jointed." American lNaturalist, June.-This journal, of course, runs to Zoology, as is to be expected from the tastes of both its editors. Every department has a specialist in charge of it except botanly, and, of course, the botanical notes lose just that much in force nid aulthority. But the wants of botanists have not been entirely neglected, and we have to thank the Naturalist this year for several valuable articles. The most intere ting one in the June number is Prof. C. E. Bessey's on "The Supposed Dimorphism of Lithospermum lonigiflorum." The author seems to have made a most exhaustive study of this species, carefully measuring the length of corolla tube, the height of anthers anid the height of stigma of over 6o flowers, with the view of testing the supposed dimorphism. The results show great variation in the measurements, but nothing like the well-marked differences that appear in true dimorphism, such1 as that of the nearly allied L. canescens. The results are summed up as follows: Ist. The length of the corolla is exceedingly variable. 2d. The distance from the anthers to the top of the corolla tube is approximately uniform, so that the position of the anthers is largely dependent upon the length of the corolla tube. 3d. The length of the style is even more variable than that of the corolla tube.
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