By Thomas Bruges Flower, Esq. 



317 



Ceterach (Willd.) Rustybacb:. 

 Linn. CI. xxiv., Ord. i. 

 Named from the Persian ChetheraJc . 



1. C. officiuarum, (Willd.) common Ceterach, or Scale-fern. 

 Notolepum, Newm., 293. Asplenium, Hook. Scolopendrium, Sm. 

 Engl. Bot. t. 1244. 



Locality. Old walls, and rocks, chiefly on limestone. P. El, 

 April, October. Area, 1, 2, 3, 4, 5. 



South Division. 



1. South-east District. " Pewsey Church- yard, and near the 

 Wharf," Tllor. Ma rib. Probably introduced with stone from Bath, 



2. South-middle District. Old walls at Seend, near Devizes. 



3. South-west District. " South wall of the Park at Wilton, 

 and on a wall at Donhead St. Mary," Mr. James Hussey, 



North Division. 



4. North-west District. Abundant on old walls at Melksham, 

 Monkton Farleigh, and South WraxhalL 



5. North-east District. Old walls at Morden,Purton,and Swindon. 

 This fern is of rare occurence in South Wilts, but more frequent in 

 the northern portion of the county. Fronds tufted, spreading, linear- 

 lanceolate, deeply pinnatifid, or pinnate, covered beneath with dense 

 scales. Segments oblong, obtuse, waved, or slightly lobed on the 

 margin. Fronds 3 to 6 inches long, green and smooth above. It 

 often accompanies Asplenium Buta-muraria, and Trichomanes. 



Blechnum, (Linn.) Hard-Fern. 

 Linn. CI. xxiv., Ord. i. 

 Named from the Greek (blechron) or (blechnou) a kind of fern. 

 1. B. boreale, (Sw.) northern Hard-fern. Engl. Bot. t. 1159. 

 Lomaria spicant, Newm., 89. 



Locality. In woods, thickets, stony and heathy places. F. EL 

 July. Area, 1, 2, 3, 4, 5. 



South Division. 



1. South-east District. "Landford and Whiteparish," Bev. E. 

 Simms. " Ditches on Alderbury Common/' Maton, Nat. Hist, 

 Wilts. 



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