157 
Lysimachia ihyrsiflora L. Naumburgia thyrsiflora (L.) Duby. Tufted Loosestrife. 
Occasional along upland creek banks, where it grows near the water's 
edge. Collected thus far only in the northern area, but observed by the 
writer along Little Buffalo river near Ninishith hills. Found in flower dur- 
ing the first half of July. 
Sass creek, Russell, No. 26. 
Trientalis europaea L., var. arctica (Fisch.) Ledeb. T. arctica Fisch. Arctic Star 
Flower. 
American material was considered to represent a distinct species, T. 
arctica, by Fischer (27) , and is commonly so labelled. However, comparison 
with Eurasian specimens in the Gray Herbarium shows clearly that it is a 
mere regional variety, and very closely related to the species. 
Abundant in rich woods at the base of Caribou mountains. The writer 
has seen it nowhere else in the park, but it was collected by Russell in the 
northern area, where he reports it “ In woods, not common.” The height 
of its flowering season is about the last of June. 
Base of eastern slope of Caribou mountains, Nos. 3003, 3004; junction 
of Nyarling and Little Buffalo rivers, Russell, No. 57 (the writer has not 
examined this specimen) . 
Glaux maritima L. Sea Milkwort. 
Abundant at the margins of barren saline flats and brine springs. Col- 
lected in flower June 15. 
Near Heart (Raup) lake, No. 3009; near Mission Farm, No. 3008; 
junction of Nyarling and Little Buffalo rivers, Russell, No. 72 (2) . 
GENTIAN ACEAE 
Gentiana elegans A. Nels. Anthopogon Neeker. Fringed Gentian. 
The writer's collections of this species are extremely variable in size 
and habit of growth. They closely resemble the general description of 
plants labelled G. Macounii Holm (45), but do not have hairs on the lower 
parts of the filaments. The entire group needs critical study and the Wood 
Buffalo Park material may prove to have some other identity, but for the 
time being it will be considered as above. 
Abundant in the Salt Plain prairies, where it adds much colour to the 
early autumn landscape. The height of the flowering season appears to be 
in the first three weeks of August. It is occasionally found in both upland 
and lowland wet meadows, outside the Salt Plains. 
Government Hay Camp district, Slave river, No. 3027; near Heart 
(Raup) lake, No. 3028; sink-hole slough 16 miles east of Moose lake, No. 
3026; junction of Nyarling and Little Buffalo rivers, Russell, No. 66. 
G. Amarella L. Amarella. plebeia (Cham.) Greene. See Rhod. xix, 149-51 (1917). 
Gentian. 
Common to a variety of habitats — damp meadows, muskegs, and open 
timber. The first flowers appear during the last week of July, and fruit 
about the second or third week in August. Its purple flowers are inconspicu- 
ous but brightly coloured. 
91963—11 
