CHESHTHE ROSES 14| 



however, that the second parent is a form of R. glauca VilL, which 

 has erect or ascending sepals. This aggregate, ' as we have seen, 

 is sparsely distributed in the district, while E. canina and its forms 

 are abundant. Further, I can hnd nothing in the features of the 

 hybrid itself to suggest a y/^/^cr;! parentage except the erect sepals, 

 and this feature might well be derived from B. ijimpinellifolia. 



EAST WILTSHIRE BRYOPHYTES, 

 By Cecil P. Hurst. 



(See Journ. Bot. 1916, 17, 26G ; 1918, 181.) 



The following mosses and hepatics were observed growing around 

 Great Bedwyn, near Marlborough in East Wiltshire, during 1918 and 

 1919. This locality continues to produce rare and interesting plants, 

 the character of the country, woodland, water, marsh, meadow, 

 and downland, and the diversity of soil, chalk, sand, and clay tend- 

 ing to produce a varied flora. Including subspecies and seven mosses 

 occm-ring on sarsen stones near Aldbourne and Marlborough, which 

 are situated a little distance away from our district, I have noted 

 184 mosses and 45 hepatics in the neighbourhood of Great Bedwjai ; 

 the present list records 74 mosses comprising 20 species and 6 vars. 

 new to North Wiltshire and 3 species and 4 vars. which are new to 

 South Wiltshire, and also includes 24 hepatics, 20 of which have 

 been hitherto unrecorded for North and 6 for South Wilts. There is 

 a tract of sandy ground in the north part of Tottenham Park border- 

 ing on Savernake Forest and rising to nearly 600 ft., which produces 

 a very interesting moorland flora, rare in in this chalky country ; 

 here grow the mosses Rhacomifrium canescens^ hoarv greyish green 

 in colour, and the conspicuously red-fruited Funaria ericetorum, 

 while the hepatics Sphenolohus exsectiformis with its clusters of 

 orange gemmse and the typically moorland Gymnocolea injlnta find a 

 congenial habitat among the heather and the ground is white with 

 lichens, the lichen flora including Gladonia sylvatica, C. furcata, 

 C. uncialis, C. coccifera, Cetraria aculeata var. hispida, Parmelia 

 pliysodes, a small state of which thickly encrusts the stems of the 

 heather and Bmomyces roseus forming a pale-grey crust on the 

 earth prettily relieved in the winter months by its pink fruits borne 

 on slender stalks. The sandy clay strata of the Reading Sands are 

 very prolific in interestmg plants, and it is on this substratum in 

 Chisbury Wood that man}^ rare mosses and hepatics occur. Some 

 noteworthy moss-records are Philoiiotis C(Bspitosa var. adpressa in 

 a bog on Burridge Heath new to the British Islands, the fine var. 

 datum of Mnium ciffine growing luxuriantly on boggy ground in 

 Hungerford Marsh, the curious form of Mnium rostratum with 

 obsolete leaf- teeth which occur on the, gravel of Rhododendron Drive, 

 Savernake Forest, the rare Amhlysteyhim Kochii plentiful and fruit- 

 ing copiously in one place in an Epilohmm liirsutam swamp at the 

 source of the Shalbourne Stream near Shalbourne, the uncommon 

 A. varium. growing on brickwork by a pool at Crofton, and Hypnum 



