I04 



Fig. 6i. The same, a few days older, with the cotyledons free, 4 X ^^^• 



size. 



PLATE XL 



Dionaea miiscipiila (continued). 



Fig. 62. A young plant, showing the first leaves next the cotyledons, 4 X 



nat. size. 



63. The same, a little older, with the first secondary root visible, 6 X 



nat. size. 



64. The rhizome of an old plant. 2 X ^^^- size. 



65. The same, longitudinal section, 2 X ^^^- size. 



Thaspium barbinode. 



Fig. 66. A germinating plantlet, nat. size. 



67. A germinating plantlet with three cotyledons, nat. si 



68. A young plant with the cotyledons dropped, nat. size. 



Thaspium atireiim. 



Fig. 69. A germinating plantlet, nat. size. 



Osmorrhiza longistylis. 



Fig. 70. A germinating plantlet, 2 X ^i^^- size. 



71. A young plant, one year old, showing a leaf, different from the 



w 



first one figured in Fig. 70, nat. size. 



Sanictila Marylandica. 



Fig. 72. One of the cotyledons, 4 X ^a^- size. 



73, A germinating plantlet, 2 X ^at. size. 



74. A young plant, showing the strongly developed secondary roots, 



nat. size. 



L 



A r alia spinas a. 



1 



F'g' 75- ^^ germinating plantlet, 3 X "at. size. 



PLATE XIL 



' Ij>oma:a paniadata. 



Fig. 76. A germinating plantlet, nat. size. 



77. A germinating plantlet with four cotyledons, the two of whicli have 



grown together, nat. size. 



78. The base of the petioles of the four cotyledons with the plumule 



and the upper part of the root, nat. size. 



Rheum Moorcroftiamim. 



m 



Fig. 79, A germinating plantlet, showing the cotyledons with coinate 



petioles, forming a tube, through the base of which the plumule 

 has come out, side view, nat, size. 



/ 



V 



, \ 



