416 



THE BOOK OF CHOICE FERNS. 



The fertile fronds are very similar in shape and size, but are furnished with 

 much narrower leaflets. — Lowe, Our Native Ferns, ii., p. 385, t. 59a. 



L. S. trinervis — trin-er'-vis (three-nerved), Lowe. 



This remarkably handsome variety, originally found 

 on the Sugar-loaf Mountains, in Wicklow, differs from 

 all other known forms through the division of the barren 

 fronds (Fig. 105) into three sections near the base, 

 where one lateral branch is produced on either side of 

 the central one, which is usually much larger than the 

 lateral ones. The fertile fronds, which are but sparingly 

 produced — seldom more than two on a plant — are branched 

 at the base in the same way. Sometimes the summit 

 of the fronds, and the extremity of the branches, are 

 forked or even terminated by a crest of very distinct 

 character ; it is then called L. S. t. coronans (Fig. 106). — Lowe, Our Native 

 Ferns, ii., p. 400. Nicholson, Dictionary of Gardening, ii., p. 295. 



L. S. variabilis — var-i-a'-bil-is (variable), Moore. 



A variety of small dimensions, with 

 barren fronds 4in. to 5in. long, enlarging 

 upwards for about one-third of their 

 length, and then suddenly contracting ; 

 they frequently branch towards or at the 

 point, and diminish near the stalk, with 

 here and there a projecting leaflet. — 

 Nicholson, Dictionary of Gardening, ii., 

 p. 295. 



Fig. 105. Barren Frond of 

 Lomaria Spicant trinervis 



(i nat. size). 



L. tenuifolia — ten-ii-if-oF-!-a (slender- 

 fronded). Synonymous with Acros- 

 tichum tenuifolium. 



Fig, 106. Lonmria Spicant trinervis < 

 (1 nat. size). 



L. tuberculata — tu-ber-cul-a'-ta (warted). A synonym of L. procera 

 ornifolia. 



L. Yestita — ves-ti'-ta (clothed). A variety of L. procera. 



