BY A. G. HAMILTON. 39 



outside of these. MacFarlane also found them " on the scales 

 of 3"oung rhizomes; on the long, slender flower-stalks, and on the 

 bracts which these bear. . . . On the outer surface of the 

 sepals they are even more numerous and larger " (5). The 

 epidermis cells in surface view are irregularly wavy, but less so 

 on the under than the upper side (fig. 3). In section they are 

 thin-walled and straight-sided, with a conical base. The meso- 

 phyll consists of rounded cells, with many air-spaces, and the 

 palisade tissue on the upper surface is very slightly differentiated 

 from the spongy tissue. The chlorophyll masses are fairly large, 

 and in young leaves very brilliant green. Spiral conducting 

 tissue, such as is usually associated with the carriage of water, is 

 plentifully developed. 



The pitchers (fig. 4) are roughly pitcher-shaped, but not 

 symmetrical. They resemble the front part of a loose slipper. 

 The petiole is attached below the junction of the lid and pitcher, 

 and the veins spread palmately from the insertion. The lid is 

 almost circular, and curved over the mouth. From the attach- 

 ment of the lid four ribs run to the margin, the two centre ones 

 forking so that at the edge there are six ribs, composed of thickish 

 tissue. These ribs are green in young, purplish-red in mature 

 pitchers. Between the ribs lies thin transparent tissue with no 

 chlorophyll granules. These areolse have a frosted appearance, 

 like the similar tissue in the flowers of many species of Pterostylis^ 

 and similar areolse are found in the pitchers of Sarracenia and 

 Darlingtonia. The veins of the lid branch dichotomously at the 

 base, and then form reticulations in the ribs. They pass through 

 the areolse transversely, but rarely fork there. On the ribs of the 

 lid the stiff white hairs occur sparsely, and there is a fringe of 

 the same hairs on the edge, some being quite double the length 

 of others; they are white in j^oung pitchers, rusty-brown in old 

 ones. Besides jbhese, short thick hairs with rounded heads, which 

 stain with saffranin much more readily than the long ones, are 

 found on the outside of the lid near its attachment (fig. 5). The 

 interior of the lid is white or pinkish, with crimson streaks 

 marking the situation of the ribs. 



