. A history of British ferns. Ferns. EUPTEEIS AQUILINA. 31 absolute absence of any other analogous part to which, wii,h any show of plausibility, it can possibly be referred. I have stated that the margins of each lobe are convolute, so that the marginal vein and its accompanying membranes, toge- ther with the series of intervening capsules, are bent over towards the midvein, presenting an appearance which I have attempted to represent in the accompanying figure of the under sur- face of the apex of a lobe : h h is the mar- ginal vein in its natural position ; c c, the inflexed or convolute po
. A history of British ferns. Ferns. EUPTEEIS AQUILINA. 31 absolute absence of any other analogous part to which, wii,h any show of plausibility, it can possibly be referred. I have stated that the margins of each lobe are convolute, so that the marginal vein and its accompanying membranes, toge- ther with the series of intervening capsules, are bent over towards the midvein, presenting an appearance which I have attempted to represent in the accompanying figure of the under sur- face of the apex of a lobe : h h is the mar- ginal vein in its natural position ; c c, the inflexed or convolute portion of the leaf; d d the superior membrane partially co- vering the capsules, which are shown at c e, projecting from beneath it; / is the midvein of the lobe. The inferior mem- brane, although very similar to the supe- rior, has some points of difference ; each consists of a disk divided into cells, and a marginal fringe of jointed hairs or capillary segments, but the disk is somewhat differently marked. Mr. Jenner has ta- ken great pains to obtain a view of both the membranes at once, and has favoured me with the annexed sketch, the accuracy of which I have tested by examination. The marginal vein of the lobe is supposed to be presented to view edgeways at g, the capsules having been removed, in order ' ^ '' to leave the view of the membranes unobstructedj h represents the superior, and i the inferior 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 Newman, Edward, 1801-1876. London, J. van Voorst
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Keywords: ., bookcentury1800, bookdecade1850, bookpublisherlondo, bookyear1854
