FILI 



PLATE 22. 



Fig. 1. Asplenium falcatum, var. /3. attenuatum. 1 a, section 

 of a pinna ; 1 b, section of the same, showing an indusium and 

 the insertion of the sporangia ; 1 c, scale from base of a stipe ; 1 d, 

 sporangia. The details magnified. 



Fig. 2. Asplenium insiticum. 2 a, under side of a pinnule ; 2 b, 

 section of a pinnule, showing the indusium and insertion of the 

 sporangia; 2 c, scale from the base of a stipe; 2 d, sporangium. 

 More or less magnified. 



PLATE 23. 



Pig. 1. Asplenium strictum. Plant, of the natural size; 1 a, 

 pinna ; 1 b, portion of a pinna, showing the indusium. The de- 

 tails more or less magnified. 



Fig. 2. Asplenium multifidum. Portion of a frond, of the 

 natural size; 2 a, a segment, showing the indusium; 2 b, sporan- 

 gia. The details magnified. 



PLATE 24. 



Fig. 1. Asplenium dissectum. Frond, of the natural size ; a, 

 pinnule, showing the indusium; b, a scale, from the base of stipe; 



c, sporangium. The details more or less magnified. 



PLATE 25. 



Fig. 1. Nephrodium Hudsonianum. Portions of a frond, of the 

 natural size; a, section of a pinna, showing the position of the 

 sori, and the tubercles on the under surface; b, sorus; c, indusium ; 



d, d, sporangia; e, sporules. The details magnified. 



PLATE 26. 



Fig. 1. Lastrea articulata. Fronds, of the natural size; 1 a, 

 upper side of a pinna; 1 b, a small portion of the same, seen from 

 beneath, with a perfect sorus ; 1 c, sporangium. The details 

 more or less magnified. 



Fig. 2. Lastrea attenuata. Upper half of a frond, of the natu- 

 ral size; 2 a, section of a segment, under side, with a perfect 

 sorus ; 2 b, section of the costa, showing the hairs of the upper 

 side; 2 c, 2 c, sporangia. The details more or less magnified. 



PLATE 27. 



Fig. 1. Lastrea truncata. Frond, of the natural size; a, 

 dorsal view of a portion of a pinna ; b, section of a segment, with 

 a single sorus ; c, smaller portion of the same, showing the in- 

 sertion of the sporangia; d, scale from the rhachis ; e, e, spo- 

 rangia. The details all more or less magnified. 



PLATE 28. 



Fig. 1. Polysticuum Haleakalense. Plant, of the natural 

 size ; a, pinnule, showing its under surface ; b, dorsal view of a 



C E S . 5 



I small portion of the same, with a single entire sorus; c, the in- 

 dusium, with a scale in its centre ; d, a scale, from the costa ; e, a 

 scale from the stipe ; /, /, sporangia. The details all more or less 

 magnified. 



PLATE 29. 



Fig. 1. Oleandra hirta. Portion of the plant, of the natural 

 size ; a, section of a frond ; b, smaller portion, with a single sorus ; 

 c, scales from the rootstock ; d, hairs from the surface of the frond ; 

 e, e, sporangia. The details more or less magnified. 



PLATE 30. 



Fig. 1. SchizolomA Agatii. Frond, of the natural size ; 1 a, 

 section of a pinna, with the indusium turned back, to show the 

 sporangia; 1 b, scales from the base of the stipe ; 1 c, sporangium ; 

 I d, sporules. Details more or less magnified. 



Fig. 2. Synaphlebium Pickeringii. Portion of a plant, of the 

 natural size; 2 a, a pinna, slightly magnified, to show the anas- 

 tomosing venules ; 2 b, dorsal view of a lobe, with a single sorus, 

 and a portion of the indusium turned back to show the sporan- 

 gia; 2 c, a sporangium. The details more or less magnified. 



PLATE 31. 



Fig. 1. Diellia falcata. Portion of a plant, of the natural 

 size; 1 a, dorsal view of a section of a pinna; 1 b, scale from the 

 stipe; 1 c, 1 c, sporangia. The details magnified. 



Fig. 2. Diellia erecta. A frond, of the natural size ; 2 a, 

 dorsal view of a section of a fertile pinna ; 2 b, 2 b, sporangia. 

 The details magnified. 



PLATE 32. 



Fig. 1. Humata polypodioides. Portion of a plant, of the 

 natural size ; 1 a, dorsal view of a portion of the sterile frond, 

 showing the venation; 1 b, same view of a portion of the fertile 

 frond, showing the form of the indusium ; 1 c, single sorus. with 

 the indusium cut away, to show the insertion of the sporangia ; 

 1 d, scale from the rootstock ; 1 e, sporangium. The details more 

 or less magnified. 



Fig. 2. Humata botrychioides. Portion of a plant, of the natu- 

 ral size ; 2 a, dorsal view of a portion of a sterile frond, showing 

 its venation ; 2 b, portion of a fertile frond, showing the sori, with 

 and without the indusium ; 2 c, scale from the rootstock ; 2 d, 

 sporangium. The details more or less magnified. 



PLATE 33. 



Fig. 1. MiCROLEriA inequalis, Presl ; var. minor. A portion of 

 a frond, of the natural size ; a, view of a portion of an ultimate 

 pinna, from underneath ; b, a single sorus, showing the form of 

 the indusium; c, a single sorus, with the indusium removed, BO as 

 to show the insertion of the sporangia ; d, d, sporangia. The de- 

 tails more or less magnified. 



