Insectivorous plants . art. Thisupper region is covered by many transverse rows, oneabove the other, of short, closely approximate hairs,pointing downwards. These hairs have broad bases, and their tips are formedby a separate cell. Theyare absent in the lower partof the utricle where the pa-pillae abound. The neckis likewise lined throughoutits whole length with trans-verse rows of long, thin,transparent hairs, havingbroad bulbous (fig. 30) bases,with similarly constructedsharp points. They arisefrom little projecting ridges^formed of rectangular epi-dermic cells. The hairsvary a little in len
Insectivorous plants . art. Thisupper region is covered by many transverse rows, oneabove the other, of short, closely approximate hairs,pointing downwards. These hairs have broad bases, and their tips are formedby a separate cell. Theyare absent in the lower partof the utricle where the pa-pillae abound. The neckis likewise lined throughoutits whole length with trans-verse rows of long, thin,transparent hairs, havingbroad bulbous (fig. 30) bases,with similarly constructedsharp points. They arisefrom little projecting ridges^formed of rectangular epi-dermic cells. The hairsvary a little in length,but their points generallyextend down to the rownext below; so that if theneck is sjDlit open and laidflat, the inner surface re-sembles a paper of pins,—the hairs representing thepins, and the little transverseridges representing the foldsof paper through which thepins are thrust. These rows of hairs are indicatedin the previous figure (29) by numerous transverselines crossing the neck. The inside of the neck is. Fig. 30. {Genlisea ornata.) Portion of inside of neck leadinginto the utricle, greatly enlarged, show-ing the downward pointed bristles,and small quadrifid cells or processes. Chap. XVIIT. CAPTURED PREY. 449 also studded with papillae; those in the lower part arespherical and formed of four cells, as in the lower partof the utricle; those in the upper part are formed oftwo cells, which are much elongated downwards beneaththeir points of attachment. These two-celled papillaeapparently correspond with the bifid process in theupper part of the bladders of Utricularia. The narrowtransverse orifice (o, fig. 29) is situated between thebases of the two spiral arms. JSTo valve could bedetected here, nor was any such structure seen byDr. Warming. The lips of the orifice are armed withmany short, thick, sharply pointed, somewhat incurvedhairs or teeth. The two projecting edges of the spirally woundlamina, forming the arms, are provided with shortincurved hairs or teeth, e
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishernewyo, bookyear1875
