PLATE 25 



145 



148 



151 



14(1 



152 





147L 



,150. 



153 



145. Ipomcea cnccinca. Cotyledon, showing long petiole, long midrib, blunt wide lobes, with an angle of 90 between. 



148. Ipomcea qiin/nnclit. The same, showing short petiole, short midrib, long narrow pointed lobes, and an angle of 



150 between lobes. 



151. Ipomira sloteri. The same, showing medium length petiole and midrib, lobes of medium width and somewhat 



tapering, and an angle of 120 between lobes. 



146. Ipomcea cocci nea. Lateral branch, showing entire leaves. 



149. Ipomoea quamoclU. The same, showing pinnate leaves. 



152. Ipomoea sloteri. The same, showing deeply lobed leaves. 



147. Ipomcea coccinca. Flower, showing rounded lobes. 



150. Ipomcea quamoclit. The same, showing pointed lobes. 



153. I pointed, sloteri. The same, showing slightly pointed hexagonal outline. 



Figs. 145, 148, and 151 are slightly, but equally, reduced. Figs. 146 and 149 are reduced equally, and Fig. 152 is reduced 

 more than the former. Figs. 147, 150, and 153 are natural size. 



