106 Morten P. Porsitp. 
A southern type, the above mentioned localities represent the 
northern limit of the species in West Greenland. Common south of 67°. 
All the mentioned places in the lowland. 
Abundantly flowering and fruiting and attains to great vegetative 
power. Next to Archangelica it has the largest leaves among the plants 
of Disko, sometimes with a broadness of 12—-15 cm and a midrib of 
d----8 em in length. 
4 207. Alchimilla minor Huns. subsp. filicaulis (Buser) 
LinDBERG fil. (Die nordischen Alchimilla vulgaris Formen und ihre 
Verbreitung. Acta. Soc. Scient. Fenn. 37, Nr. 10, 1909). 
Only found once in Amerdlog-Fjord at Holsteinsborg 66°55’ (V.). 
A decided southern type; the next following locality ca. 65° and 
only in the southmost part of the land fairly common. 
Perhaps overlooked now and then or, in notes mistaken for the 
preceding. 
XXVI. Callitrichaeae. 
The Callitriche-species observed in Greenland occur near the bor- 
ders of shallow lakes, often hid among the stalks of Carex species. The 
known localities lie rather isolated between 70° and 60°. As most of the 
aquatic plants in Greenland they must be settled as decided southern 
types. 
If the numerous pools and ponds in the gneiss-domaines of Green- 
land were sufficiently investigated it would no doubt become apparent 
that the Callitrichaceae and other small aquatic plants have a rather 
continuous extension. | 
All the Callitriche-species, found in Greenland, flower and fructi- 
ficate; hitherto they are only found in the lowland. They hibernate 
enclosed in ice, because of their occurrence in shallow places in the 
lakes, which freeze to the bottom during winter. 
JL 208. Callitriche verna (L.) KÜTz. var. minima Hopper. 
Disko: Mudderbugt 69°45’ (Htz.), the northern limit 
Mainland: Jakobshavn 69°13’ (Sor.); the archipelago of Egedesminde from 
Ikamiut to Qegertarssuatsiag, from several places (Kr.); Holsteinsborg (W. & H) 
southwards herefrom not observed till 60°—62?. 
L 209. Callitriche hamulata Коти. 
Mainland: Archipelago of Egedesminde from Ikamiut to @Qegertarssuatsiag, 
са. 68°40’ (Kr.): the northern limit. From this domain southwards not obser- 
ved till 65°, 64°25’ and between 60° and 61°. 
