ASPLENIUM. 



609 



from those of all other known kinds through the disposition of their leaflets. 

 These are placed so close to each other that they overlap fully one-half of 

 their width and are consequently much imbricated j they are auricled (eared) 

 at the base and minutely dented on their margins. The frond is of equal 

 breadth nearly to the summit, where it rapidly contracts into a blunt, lobed 

 leaflet (Fig. lU).—Lowe, Our Native Ferns, ii., p. 194, fig. 543. 



Fig. 115. Frond of Aspienium nmrinum imbricatum 

 (| nat. size). 



A. m. incisum— in-ci'-sum (cut), Moore. 



A small, pretty form, found wild at Great Orme's Head and near 

 Llangollen. Its fronds, 6in. to 9in. long, are furnished with leaflets only Jin. 

 long, having their anterior base auricled (eared) and usually showing three 

 deep incisions along the anterior margin. The few sori (spore masses) are 

 large and are mostly situated at the anterior edge of the lobes. — Lowe, Our 

 Native Ferns, ii., p. 189, fig. 533. 



A. m. interruptum— in-ter-rup'-tum (interrupted), Moore. 



A form that is more curious than beautiful, for it differs from the typical 

 species only by its interrupted and irregular character, the pinna; (leaflets) 

 being variable in size and shape ; some of them are long and triangular, 

 others egg-shaped, one pinna being frequently four times as long as the next. 

 — Lowe, Our Native Ferns, ii., p. 193, t. 45a. 



4 D 



