NOTES ON BLECHNUM CAPENSE. 125 



In one specimen alone, in my experience, does the full 

 eublechnoid character appear. It was collected, near 

 Mount Wilson (N.S.W.) by Mr. Jesse Gregson, who, for 

 many years, has taken a deep interest in the botany of 

 that mountain, and has sent many good specimens to the 

 Sydney Herbarium. Mr. Gregson's Blechnum was collected 

 in 1902; and, recently, under that gentleman's direction, 

 it was found in good quantity and in excellent condition, 

 by Mr. J. L. Boorman, of the National Herbarium, Sydney. 

 It is, apparently, to be found at one spot alone, where it 

 grows on a wet ledge in the face of a perpendicular cliff 

 overlooking a permanent creek in a gully at the base of 

 Green Mountain, a little on the Bell side of Mount Wilson. 



This fern, being entirely, or almost entirely, eublechnoid 

 in character, I regarded, at first, as a new species: an 

 opinion that was strengthened when I found specimens 

 from Mr. Gregson's original collection put away, by the 

 late Mr. Betche, as Blechnum serrulatum. Later, how- 

 ever, I found other specimens from Mr. Gregson's collection 

 in the Blechnum capense box, together with a note stating 

 that this fern had been submitted to Dr. Christ, and deter- 

 mined by him as an abnormal form of 18. capense. In 

 support of this view, two pinnae were mounted, in which 

 the fertile leaf -spread was contracted, in one or two places, 

 to the lomarioid form. These pinnae are matched in some 

 of Mr. Boorman's specimens, and due importance must be 

 attached to them, though they appear to me to be possibly 

 due to some damage by insects or bruising. But fully 

 allowing for these occasional pinna-breaks as hints of 

 lomarioid origin, the Green Mountain specimens appear to 

 be quite unique in their eublechnoid character. With the 

 exception of the slight occasional breaks referred to, all 

 the fronds are entirely eublechnoid: the fertile pinnae have 

 a form scarcely, if at all, distinguishable from the sterile* 



