191 



##### Petals wanting. 



77. PARIETARIA. Cal. 4-cleft, inferior. Stam. elastic. 

 Seed invested with the elongated calyx. Some flowers 

 without stamens, their calyx remaining unaltered. 



*77. ISNARDIA. Cal, deleft, superior. Caps, quadran- 

 gular, of 4 cells, crowned by the calyx. 



74. SANGUISORBA. Cal. 4-cleft, superior, coloured. 

 Stam. dilated upward. Caps, quadrangular, of 1 cell, 

 not bursting. 



78. ALCHEMILLA. Cal. 8-cleft, inferior. Seed 1, or 



2, naked. 



Order II. DIGYNU. Pistils 2. 



79. BUFFONIA. Petals 4. Caps, of 2 valves. Seeds 2. 



Alchemilla. Gentians. Cuscutce. 



Order III. TETRAGYNIA. Pistils, or 

 Stigmas, 4. 



80. ILEX. Cor. wheel-shaped, of 1 or 4 petals. Berry with. 

 4 seeds. Styles 0. Some Jl. barren. 



84. MOENCHIA. Pet. 4. Caps, of 1 cell, and 1 valve, 



with 8 teeth. Cal. 4-leaved. 



83. S AGIN A. Pet. 4. Caps, of 1 cell, and 4 valves. Cal. 



4-leaved. 

 86. RADIOLA. Pet. 4. Caps, of 8 cells, and 8 valves. 



Cal. of 1 leaf, in 12 segments. 



85. TILLiEA. Pet. 4, 3 or 5. Caps, several. Seeds 

 several. 



81. POTAMOGETON. Pet. 4. Cal. 0. Seeds 4, naked, 

 sessile. 



82. RUPPIA. Pet. 0. Cal. 0. Seeds 4, stalked. 



