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Show 448 GENLISEA ORNATA. CHAP. XVIII. These papilloo extend a little way up the dorsal and ventral surfaces of the utricle; and a few, according to Warming, may be found in the upper part. This upper region is covered by many transverse rows, one above the other, of short, closely approximate hairs, pointing downwards. These hairs have broad bases, and their tips are formed by a separate cell. They are absent in the lower part of the utricle where the papillro abound. The neck is likewise lined throughout its whole length with transverse rows of long, thin, transparent hairs, having broad bulbous (fig. 30) bases, with sitnilarly constructed sharp points. They arise from little projecting ridges, formed of rectangular epidermic cells. The hairs vary a little in length, but their points generally extend down to the row next below; so that if the neck is split open and laid flat, the inner surface re- Fw. 30· sembles a paper of pins,- ( Genlisea o1·nata.) Portion of inside of neck leading the hairs representing the into the utricle, greatly enlarged, sho,:v- pins, and the little transverse ing the downward pointed briRtles, and small quadrifid cells or processes. ridges representing the folds of paper through which the pins are thrust. These rows of hairs are indicated in the previous figure (29) by numerous transverse lines crossing the neck. rrhe inside of the neck is CHAP. XVIII. CAPTURED PREY. 449 .also s~udded with papillro; those in the lower part are sphencal .and formed _of four cells, as in the lower part of the utncle; those In the upper part are formed of two cells, which are much elongated downwards beneath their points of attachment. These two-celled papillre apparently correspond with the bifid process in the upper part of the bladders of Utricularia. The narrow transverse orifice ( o, fig. 29) is situated between the bases of the two spiral anns. No valve could be detected ~ere, nor w~s any such structure seen by Dr. Warming. The h ps of the orifice are anned with many short, thick, sharply pointed, somewhat incurved hairs or teeth. T~e two ~roj ecting edges of the spirally wound lamina, forming the arms, are provided with short incurved hairs or teeth, exactly like those on the lips. rrhese project inwards at right angles to the ~piral line of junction between the two edges. The Inner surface of the lamina supports two-celled, elongated papillre, resempling those in the upper part of the neck, .but ~ifferin? slightly from them, according to Warming, In theu foots talks being formed by prolongations of large epidermic cells; whereas the papillro within the neck rest on small cells sunk amidst the larger ones. These spiral arms form a conspicuous difference between the present genus and U tricularia. Lastly, there is a bundle of spiral vessels which, running up the lower part of the linear leaf, divides close beneath the utricle. One branch extends up the dorsal and the other up the ventral side of both the utricle and neck. Of these two branches, one enters one spiral arm, and the other branch the other arm. The utricles contained much debris or dirty matter, which seemed organic, though no distinct organisms 2 G |