A SPLENIUM. 



657 



Eaton, who, in his excellent work, " Ferns of North America," says that, 

 besides having been found near Brattleboro, Vermont, it is frequently 

 collected near San Diego, California, where the typical plant does not seem 

 to occur. Its somewhat triangular and generally sharp -pointed leaflets are 

 deeply cleft into narrow-oblong, irregularly and profoundly serrated segments, 

 the larger of them often being lobed. See Fig. 131. — Lowe, Our Native 

 Ferns, ii., p. 201, fig. 548. Eaton, Ferns of North America, L, t. 36. 



Fig, 737, Frond of Asplenium Triohomanes incisum 

 (; nat. size). 



A. T. i. Claphami — Clap'-ham-i (Clapham's), Lowe. 



Undoubtedly the finest form of the variety incisum. Its fronds are 6in. 

 to 7in. long and are furnished with upwards of thirty pairs of leaflets, Avhich 

 sometimes measure fin. in length and fin. across the base, the basal lobes 

 right and left being cut down nearly to the midrib and themselves again 

 lobed and having segments toothed and more or less deeply cleft. Unfor- 

 tunately, this lovely form, which was originally found at Smeerset, near Settle, 

 Yorkshire, is entirely barren, and consequently very scarce. — Lowe, Our 

 Native Ferns, ii., p. 212, fig. 572. 



A. T. i. laemiatum— lae-m-i-a'-tum (torn), Moore. 



A distinct sub-variety, of small dimensions, originally found in County 

 Clare, Ireland. Its fronds, seldom more than 3in. long, have their leaflets 

 narrow and finely laciniated. — Lowe, Our Native Ferns, ii., p. 206, fig. 557. 



A. T. lobatum— lob-a'- turn (lobed), Moore. 



In this large-growing variety, originally found at Shaw Bridge, in 

 Devonshire, the fronds, upwards of 1ft. in length, have their leaflets, especially 

 in the centre of the frond, deeply divided at their base into two broadly 

 egg-shaped lobes, the lowest one sometimes separated almost to the midrib. 

 — Lowe, Our Native Ferns,, ii., p. 206, fig. 558. 



4 G 



