1921-22.] BOTANICAL SOCIETY OF EDINBURGH 111 



only seen by me. Plants not in flower or fruit. Mr. J. 

 Anderson, Turnpike, in litt., dated 27th February 1922, 

 informs me that the Rhubarb plant now growing on the 

 grassy cliffs at Turnpike was taken out of the garden at 

 Turnpike House about 1912 and thrown over the cliffs, and 

 that Mr. David Laughton, Greens, Saint Andrews, Main- 

 land, Orkney, seeing it lying there, planted it. Mr. James 

 Skea, Stembuster, in litt., dated 2nd March 1922, informs 

 me, with reference to the two large clumps of Rhubarb 

 growing on the seashore below Stembuster House, that 

 some Rhubarb plants were thrown out of the garden at 

 Stembuster, and that " a man James Laughton planted 

 them below the beach about 30 j^ears ago, and there they 

 have grown and thriven without any cultivation, many 

 times in winter being covered with foam of the sea." Mr. 

 J. Skea also informs me that the Rhubarb plants growing 

 at Stembuster seashore produce flowers.] 



Salix phylicifolia, Linn, x repens, Linn. $ and % . 

 — Ditch side, 50 feet above sea-level, Meadow of Greenay, 

 Birsay, Mainland, 26th May 1921 (plants in flower), and 

 29th June 1921 (male plants in leaf only, and female plants 

 in leaf and ripe fruit), H. H. Johnston. Native. Rare. 

 Plants growing among Salix REPENS, Linn., and within 

 200 yards of Salix phylicifolia, Linn. The 3'Oung 

 leaves of the male and female plants in flower on 26th May 

 1921 were green above, paler green beneath, and thinly 

 clothed on both surfaces Avith short, adpressed, whitish 

 hairs. With reference to my male specimens, the Rev. E. 

 F. Linton, in a note dated 29th December 1921, writes as 

 follows : — " S. phylicifolia X repexs very possibly. On 

 the scanty material I don't feel positive," and, with refer- 

 ence to my female specimens, he writes as follows : — 

 " S. phylicifolia X S. repens, is a very likely solution. 

 In most respects differing little from S. REPENS. There is 

 the broader leaf in 1267 [mj- Reference No., H. H. Johnston], 

 and in some cases the stjdes, usually very short, are slightly 

 or pi. m. elongate. The buds are indeterminate, but seem 

 to indicate something besides REPENS, and being ± pointed 

 approach S. phylicifolia." A new record for this hj^brid 

 for H. C. Watson's county No. Ill Orkney. 



PoTAMOGETON PECTiNATUS, Linn., var. diffusus. Hag- 



