Florae columbianae prodromus, exhibens enumerationem plantarum, quae hactenus exploratae sunt, or, A prodromus of the flora columbiana, exhibiting a list of all the plants which have as yet been collected

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Jonathan Elliot, and sold at his store, 1830 - 86 pagina's
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Pagina 9 - Traitť des arbres et arbustes qui se cultivent en France en pleine terre...
Pagina 3 - ... and the changes, if any, are insignificant. Florae Columbianae Prodromus exhibens Enumerationem Plantarum Quae Hactenus Exploratae Sunt, or a prodromus of the Flora Columbiana exhibiting a list of all the plants which have as yet been collected. (1830) cover date 1831. 86 pp. "During the spring of 1825, after the dissolution of the late Washington Botanical Society, a few gentlemen of the city devoted to Botany formed an association to explore and investigate de novo the indigenous plants of...
Pagina 60 - Pollen (58), if the latter be spoiled by wet, or otherwise hindered ; though the Seed may outwardly appear sound. This part sends out the Root (7) downwards, and the Plumula, or bud of the Stem or Herbage (12), upwards. a. Cotyledones, Cotyledons or Seed-lobes, closely attached to the Embryo, commonly two, rarely more, in some tribes altogether wanting. They either ascend out of the ground, and perform for a while the office of Leaves (31), or remain buried, till they gradually decay. 3. Albumen,...
Pagina 3 - As the result of five years' exploration, this Prodromus is published, giving a list of four hundred and thirty-eight genera with nine hundred and nineteen species, a large number for one locality. But again quoting from the preface, "The erudite Botanist will be astonished to perceive the names of several plants, in this Prodromus, which he is well aware, belong to other localities ; but when he considers the various and alpine sources of our majestic Potomac, on whose stream their rudiments are...
Pagina 6 - Orchis apectabilis was found by members of the late Botanical Society, eight or ten years ago ; and although the most diligent search has been made for it, for at least five years past, it has not been discovered until this season. when it is very abundant, and has been found in various parts of the District, by different individuals. I have also observed that Arethusa bulbosa is very abundant some years, and during others extremely rare.
Pagina 60 - ... presumed to perform the necessary functions of a Cotyledon, with respect to air, in the earliest stage of germination. Hence the term in question may properly be retained, though originally meant to apply to the separate, and usually copious, Albumen, of such plants, visible in Corn, Palms, &c. 89. Plants whose Embryo divides at the top into two parts or lobes, which are the Cotyledons (62 : 2), are named Dicotyledones, or dicotyledonous. In some few instances, as the Fir tribe, there are numerous...
Pagina 9 - A Sketch of the Botany of South Carolina and Georgia. 2 vol.
Pagina 7 - Torrey.— A Compendium of the Flora of the Northern and Middle States...
Pagina 6 - ... possible local collections of the fauna, flora, etc., of the vicinity, how many youthful naturalists might be trained, and what valuable additions might be made to our stock of knowledge respecting the inhabitants of our fields, woods and waters ! Another item of interest is found in this little book, " It would appear from recent observations, that some plants are periodical in their efflorescence ; or from some unknown cause, disappear for several years at a time ; for instance, Orchis...

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