450 Mr. Hardy on the Moss Flora of the Eastern Borders. 



mountain rocks. N. " On Cheviot." — B. G. through V.aul D. 

 "Cheviot and Hedgehope." — Winch. Very fine, and of great 

 length, in the Bizzle. E. Penton Linn. — A. J. On a stone and 

 lime wall. Cherry trees. — /. B. B. 



A variety grows in the Bizzle, with the foliage much shorter 

 and stiffer, and the tufts more compact ; sometimes it is inter- 

 mixed with Grimmia torta Mr. "Wilson, who has seen it, con- 

 siders it an intermediate variety between the type and the var. 

 hrevifolium, which he ("Bryol. Brit.") says has not been found 

 in Britain. 



20. Didymodon, Br. and Schimp. 



1. D. RUBELLtrs, Br. and Sch. Among shady rocks, on damp 

 walls, &c. ; rather frequent. B. Peasedean, Oldcambus quarry, 

 Dunglass dean, Coldingham sands, Dowlaw dean, Ale water, sea 

 coast near Berwick, Eyemouth, &e., Buncle, Allanton, St. Abb's 

 Head. N. "East Ord," Koddam dean, Heathpool, Bizzle and 

 Henhole, Harthope Linn. R. Near Jedburgh and Cherrytrees, 

 and in the Fairy dean near Melrose. 



2. ~D: FLEsiFOLius, Hook. and Tayl. N. On a sandy peat 

 whei'e the heather had been burned on Whiteside hill, close 

 beside the eastern carved stone ; also in the triangle between the 

 roads that cross the hill, at the northern end of Trickley wood. 

 It grows in beautiful green patches, with pretty yellow stems. 



21. Trichostomum, Br. and Sch. 



1. T. CEispuLUM, Bruch. B. In Fleurs dean near Colding- 

 ham ; also on clay among dry rocks on Ale water ; sea-banks 

 near Oldcambus. This and the next two species are members 

 of the English Flora, and this appears to be the first record of 

 their occurrence in Scotland. They are chiefly maritime. They 

 also appear to indicate the presence of lime. 



2. T. MUTABiLE, Bruch. R. Near Cherrytrees — J. B. B. 

 Var. BREViFOLiUM, Wils. B In large tufts on the sea banks 



where the water trickles down in winter, and on dampish ground 

 at Greenheugh, and the banks near Siccar point and Eedheugh, 

 and the banks south from Miildean, Coldingham, sometimes in 

 fruit ; also among sandstone rocks on the coast north from Ber- 

 wick. N. Among rocks above Alwinton, on the Coquet, in 

 company with Blindia acuta. This var. is T. littorale of Mitten. 



3. T. FLAYO-viEENS, Br. and Schimp. (Bryol. Europ.) 



Var. Foliis augustioribus margins subplanis. B. Growing with the 

 last on dry sandstone rocks to the north of Berwick ; shady sea- 

 banks near Siccar point. This species is one of the recent addi- 

 tions to the British Flora. Mr. Unwin, who sends me, with 

 figures of the leaves, specimens from the original locality, remarks 

 the great characteristic difi'erence between this and the two former, 

 " lies in the large diaphanous basal cells, and from their being 

 partially continuous up the margin." 



