302 EXPLANATION OF PLATES. 



Plate 6. Fig. 81. Riccia nigrella, frond enlarged (Carrington). 



Plate 7. Fig. 82. Nardia Carringlonii, leaves (Carrington). 



,, ,, 83. Acrnbolbus Wilsoni, portion of stem and 



leaves (Carrington). 

 84. Gymnomilrium crassifolium, stem and 



leaves (Carrington). 

 85. Nardia Mullerii\xr.ligurica, perianth and 



leaves (Notaris). 

 ,, 86. Fossombronia angulosa, portion of stem 



and leaves. 



87. Riccia glaucescens, two iror\&s. 

 88. Metzgeria hamata, frond. 

 89. Metzgeria conjugata, fronds. 

 ,, 90. Aneura pinnatifida, frond. 

 91. Aneura palmata, part of frond (Stephani). 

 ,, 92. Riccia tumida, frond and enlarged portion 



(Lindenberg). 

 93. Lunularia vulgaris, magnified receptacle 



(Taylor). 

 94. Riccia crystalling frond, b var. &. 



