140 Morten P. Ponrsitp. 
introduced weed. On the other hand it is common in Iceland and Jan- 
Mayen. The northern limit in Greenland is still unknown, but may be 
north of 76°. 
On Disko abundantly flowering and fructificating and seedlings 
are found everywhere. The achenes have an air-chamber and will float 
a long time. 
Covered by snow during winter. 
XLI. Labiatae. 
1 247. Thymus Serpyllum L. var. prostratus Horn. 
In sandy soil amongst willows and grasses. 
Mainland: Only found in the southern part of the area at Prestefjeld near 
Holsteinsborg 66°55’ (Giesecke, W. & H., P. & E.) , the northern limit. 
A distinct southern type, south of the area observed at 65°10' 
common about 64° and from 62° to 60°. 
Our specimens were quite sterile Aug. 6. 1914, an unfavourable 
year. Specimens from South Greenland are abundantly flowering and 
will, at least in good summers, develop fruits. 
Covered by snow during winter. 
XLII. Scrophulariaceae. 
A 248. Veronica alpina L. var. unalaschkensis Cu. & SeHL. 
(Syn. V.villosa Wormskj. mscr., V. Wormskjoldii Rorm. & ScHULT., 
V. alpina var. villosa LANGE). 
In herb-mats and willow-thickets. 
Disko: South coast and Disko fjord common; Mellemfjord, northern side 
scarce; Nordfjord near the mouth and west coast several localities up to 70°11’; 
coast towards Waygat scarce to 69°50’ (P.). 
Hare ©: South coast scarce (P.). 
Mainland: Near the settlement of Nugssuag, 70°41’, along the Waygat 
very scarce, becoming commoner in the gneissic districts south of Torssukatak ice- 
fjord and southwards, but nowhere continually distributed. For instance rare in 
the Archipelago of Egedesminde and surprisingly scarce in the inner parts of Nordre 
Stromfjord (P. & E.). 
A southern type hitherto not observed north of the localities 
mentioned above. In our area principally a lowland plant. 
Abundantly flowering and usually also fructificating. 
Covered by thick layers of snow during winter. Often the snow 
will last long in spring. 
White flowered specimens are not infrequent. 
