hornwort Ceratophyllum demersum, arrowhead Sagittaria cuneata, water
milfoil Myriophyllum exalbescens, sago pondweed Potamogeton pectin-
atus and the pondweeds Potamogeton natans, P gramineus, P. richard-
sonii and-P. zosteriformis. ics is

On June 8 none except Potamogeton natans had reached the sur-
face. In late August the shallows were filled with a dense vegeta-
tion, and duckweeds, Lemna minor and Spirodella polyrhiza spotted
the water in the bulrush marshes

The invertebrate population also is varied and abundant. Amphi-
pods Hyalella azteca are numerous in the Chara meadows, and amongst
the pondweeds are great numbers of caddis larvae, mayfly, dragonfly
and damsel fly nymphs.

On a single bulrush stem 110 nymph cases were counted and adults
of the damsel flies Ischnura perparva Selys and Lestes dryas Hagen
were collected. Molluscs were plentiful, the following being identi-.
fied: Lymnaea stagnalis jugularis Say, Gyraulus vermicularis (Gould),
Pisidium vesiculare Sterki and Pisidium compressum Prime. Items
identified in the fish population were Kamloops trout, fine-scaled
sucker and lake shiner.

Bouchie Lake has sufficient cover and food to support a sizeable
waterfowl population; nevertheless, the 1944 population proved to be
very limited indeed, namely, one pair of loons, one pair of Holboell
grebe, one brood of Barrow golden-eye and one brood of mallard.

Milburn Lake: 1 mile long, 1/4 to 1/2 mile wide, the headwaters of
Bouchie: Greek, 9 miles west of Quesnel. This is an irregular-shaped
lake with narrow channels between several large islands leading to
open stretches of water that are not visible from the main lake

The surrounding forest on mainland and islands is birch, willow,
alder, black spruce, aspen and black cottonwood, some of the latter
on the mainland shore being exceptionally tall. The main lake is
deep with a sand and gravel shore bordered by a strip of round-stem
bulrush, Scirpus acutus, manna grass and sedges. The main channel,
leading to the more secluded portions of the lake between islands
and mainland, passes through a bulrush and sedge marsh about 200
yards wide. All this part of the lake--the channels, the open ponds
and numerous marshy bays--is shallow with the surface more or less
covered by yellow pond lily leaves. Along one narrow bay, which
penetrates the forest for more than 100 yards, tall cottonwoods
growing close to the water's edge provide almost constant shade;

at the bay's entrance a large bed of arrowhead dominates the bot-
tom vegetation. At other places are strong growths of mare's tail
Hippurus vulgaris, bladderwort, water buttercup Ranunculus Gmelini
and the pondweeds Potamogeton richardsonii and P gramineus; in the
main lake are several Chara meadows.

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