107 





i 



-A 



Hemerocallis ftdva. 



m 



Fig. 128. A germinating plantlet, 3 X "at- size. 



129. A young plant, where the seed and the cotyledon have dropped ; 



the first secondary root has been developed, 3 X "^t. size. 



I 



Yucca gloriosa. 



Fig. 130. A germinating plantlet with the seed attached, nat. size, 



131. Part of the same, longitudinal section, showing the upper part of 



the cotyledon, enclosed in the albumen, 3 X 'i^*- size. 



132. An older stage of the germination, nat. size. 



^33' ^ germinating plantlet, showing the first appearance of the 



plumule, nat. size] 

 134. The same, a little older, where the first leaf has developed, nat. 



PLATE XVII. 



Yucca gloriosa (continued). 



^^Z- '35* ^^ older stage, where the cotyledon commences to fade away, 



nat. size. 



136. A young plant with the sheath of the cotyledon still persistent, 

 nat. size. 



'37- ^ young plant, showing the development of six leaves and three 



secondary roots, while the primary root has faded away, only 

 leaving a scar, R in the figure, nat. size. 



Peltandra tmdulata, 



Fig. 138. The fruit, nat. size. 



L 



139. The seed, surrounded by the jelly, nat. size. 

 I I40. The first stage of the germination ; the testa of the seed has been 



removed, nat. size. 

 141- The same mjre advanced, front and side view ; the plumule and 

 ^ some roots are visible, nat. size. 



I42. A germinating plantlet, side view ; the plumule, the primary root 



and two secondary roots are visible, nat. size. 

 143- The same, front view, nat. size. 



144. A germinating plantlet, where the second leaf begins to come out, 



nat. size. 



145. The same (side view), a little older, where the primary root has 



faded away ; three leaves and three secondary roots are visible, 

 nat. size. 



146. The same, front view, nat. size. 



PLATE XVIII. 



■ 



peltandra undidata (continued). 



g. X47. A young plant, showing (he development of the leaves and roots 



side view ; the cotyledon stili attached, nat. size. 

 148. The same, a little older, nat. size. 



Fi 



h 



