TABLE OF SPECIES AND VARIETIES. 55 



xiii. BLECHNTTM, Linnceus. 



1. B. Spicant, Both. The only species. Plate XYI. 

 fig. 2. 



E. POLYPODIACE^ DlCKSONIEJS. 



xiv. TRICHOMANES, Linnaus. 



1. T. radicans, Swartz. The only species. Plate 



XVIII. fig. 1. 



xv. HYMENOPHYLLUM, Smith. 



1. II. tunbridgense, $^7*. Pinnae vertical, involucres 



compressed, serrate. Plate XY. fig. 2. 



2. H. unilateral Willdenow. Pinnse unilateral, in- 



volucres inflated, entire. Plate XV. fig. 3. 



F. OSMUNDACE^E. 



xvi. OSMTJNDA, Linnaus. 



1. O. regalis, I/innteus. The only species. Plate 



XIX. fig. 2. 



G. OPHIOGLOSSACE^E. 



xvii. OPHIOGLOSSUM, Linnaus. 



1. 0. vulgatum, Linnceus. The only species. Plate 



XVIII. fig. 3. 

 xviii. BOTRYCHIUM, Linnteus. 



1. B. Lunaria, Linnaeus. The only species. Plate 

 XVIII. fig. 2. 



