TOPOGRAPHICAL BOTANY OF SCOTLAND 39 



by birds. It is, therefore, often regarded as very doubtfully 

 " indigenous " in Scotland ; but the evidence now obtainable 

 can warrant only the verdict " not proven." 



R. canina, L., Tar. lutetiana, Leman, 80, 93, 94. 

 var. dumalis, Bechst., 91, 93. 

 var. dumetorum (TJniil/.), So, 92, 93, 95. 



R. glauca, VilL, 80, Si, 91, 92, 93, 94, 95, 96, 97. 



var. coriifolia (Fr.}, Si, 91, 92, 93, 94, 96, 97, 98. 



var. subcoriifolia, IV. Barclay (1899), 79, 86, 87, 89, 92. 



J?. arvensis, Huds., 85. 



JZ. alpina, L., 91. 



Pyrus torminalis, Ehrh. Sonntag says of this, " common in planta- 

 tions," but this requires confirmation. The record for io6f 

 was afterwards referred by its recorder (Rev. E. S. Marshall) to 

 "P. latifolia, Syme." Syme (in " E. Bot," iii. p. 242) says, 

 " In Scotland it (P. torminalis} only occurs in ornamental 

 plantations," and that " Sorbus latifolia, Persoon, the connect- 

 ing link between P. torminalis and P. Aria, does not occur in 

 Britain." 



P. Aria, Ehrh., 84, 89, 101, 105, logf. I have never seen this 

 where I could regard it as clearly indigenous in Scotland, but 

 it is frequent in plantations, and where it might readily have 

 sprung up from seeds dispersed by birds. 



P. intermedia, Ehrh., 74!, 927, 97!, 1077. 



(Professor Koehne in 1897 discussed, in a paper read before 

 the Edinburgh Botanical Society, the curious forms of Pyrus 

 found in Arran, and referred all to hybrids between Aria 

 suecica, Koehne, and Sorbus Aucuparia, or to 6". Aucuparia. 

 The true suecica he had not seen from Arran, but from Glen 

 Catacol two examples of the true hybrid, called by L. and W. 

 Koch Sorbus hybrida, and by C. Koch S. fcnnica, the other 

 intermediates being regarded as crosses between the hybrid 

 and suecica. He suggests that forms may be expected between 

 the hybrid and Aucuparia, indicated by the upper pinnae alone 

 being slightly fused or decurrent, the lower remaining quite 

 separate.) 



P. Aucuparia, Ehrh., 84. 



Cratsegus Oxyacantha, L., Tar. oxyacanthoides (T/nn'll.}, 86. 



SAXIFRAGACE^E. 



Saxifraga oppositifolia, Z., 107. 



S. nivalis, Z., 83 ("in, Macgillivray," Ewing's "Glasgow 



Catalogue "). 



S. stellaris, Z., 77 (" Gl. Cat."). 

 S. Geum, L., casual or planted in 75, 77, 83, 84, 85, TOO, and 



probably many other vice-counties. 



