ON THE FLORA OF SHETLAND 55 



the small size of this species ; although much more commonly 

 found as described, it is rather larger and bears more flowers 

 when growing under the shelter of rocks. When in fruit it has 

 a very distinct appearance, somewhat calling to mind Serratula 

 tinctoria when in the same condition. 



t H. protraetum, Lin deb. Abundant about the east side and north 

 end of the Loch of Cliff, Unst (No. 6 1 o). Ball of Lumbister and 

 Mid Yell Voe, Yell (No. 6 1 1 ). Rocks north of Mavisgrind, 

 Northmaven. Rocks at the foot of diva Hill, near Brae, 

 Delting. The two first-mentioned gatherings have been sub- 

 mitted to Dr. Lindeberg, who confirms the name. This 

 Norwegian Hawkweed is the most widely diffused species in 

 Shetland, where it occurs in five distinct stations in three 

 different islands. It is not known to occur elsewhere in 

 Britain. 



t H. Friesii, Hartm. (H. gothieum, Backh.} About the north end 

 of the Loch of Cliff, Unst. Banks by the Gluss Burn, near 

 Ollaberry ; grassy places near the sea, Hamar Voe ; ravine of 

 the Eela-water Burn ; the last three stations in Northmaven. 



f H. eroeatum, Fries. Low hills at North Roe. In three places 

 on the north shore of Roeness Voe. 



f H. auratum, Fries. In many places on the north shore of Roe- 

 ness Voe, among rocks. Sparingly on the south side of Roeness 

 Voe, with some curious shade-grown forms. Rocks near 

 Mavisgrind. Dr. Lindeberg confirms the naming of one of the 

 Roeness Voe gatherings. 



(H. dovrense, Fries. This record ("Scot. Nat," Jan. 1889), 

 must be withdrawn ; the plant proves to be a form of H. Friesii, 

 Hartm.) 



f H. truneatum, Lindeb. Rocks at the foot of Cliva Hill, near 

 Brae, Delting ; referred to this species by Mr. Hanbury, who 

 thinks, however, that possibly it may not be quite identical 

 with Lindeberg's type. This plant has been previously found 

 on the mainland of Scotland. 



t Ruppia spiralis, Hartm. Pools just north of Fugla Ness, and 

 salt marshes at Haggrister Bight, Sullom Voe. In both stations 

 the plant was infested by the rare fungus Tetramyxa parasitica, 

 for the name of which I am indebted to Prof. Trail. 



Seirpus multieaulis, Smith. Punds Loch ; a second locality for the 

 county. 



Desehampsia discolor, R. 6 S. Abundant by a small loch on the 

 north-east side of Roeness Hill. 



