525. A. patellulata, Nyl.

On trees, Labrador or Newfoundland. (Waghorne fide Eck-feldt.) On aspen poflar trees, Moose Mountain, Man., July 3rd, 1880. (Macoun.)

526. A. astroidea, Ach.

On bark of trees, common.

Bay of Exploits, Newfoundland. (Waghorne) Abundant on trees around Ottawa, Ont., and at Hull and Aylmer, Que.; quite common at Belleville, Hastings Co., Ont.; on balsam fir at King's Mountain, Chelsea, Que., 1897. (Macoun.)

527. A. Swartziana, Ach.

Frequent on bark of trees along St. Mary's River, Anticosti, Que.; on trees at Cove Head, Prince Edward Island, 1888; at Shannonville, Hastings Co., Ont.; on balsam fir, Lake Winnipegosis, Man.; on ash and maple trees at Leamy's Lake, Hull, Que., 1897. (Macoun.)

528. A. medilla, Nyl.

On dead wood, Greenland. (Vahl.)

529. A. spectabilis, Flot.

Quite common on old thick bark of various trees.

Bay of Exploits, Newfoundland. (Waghorne.) On maple trees at Ottawa, Ont.; on bitter-nut hickory at Hull and on basswood at Aylmer, Que.; on basswood at Carleton Place, Ont.; on ash trees, Central Ontario Junction and basswood and other trees at Belleville, Hastings Co., Ont.; on maple trees, Port Colborne and Canfield Junction, southwestern Ontario. (Macoun.)

530. A. radiata, (Pers.) Th. Fr.

On bark at Hastings, Burrard Inlet, B. C, 1887; on Alnus rubra at Comox, Vancouver Island, June 23rd, 1893. (Macoun.)

531 A. lecideella, Nyl.

Chiefly on the bark of young Pinus Slrobus at Ottawa, Ont.; on Acer spicatum at Aylmer, Que.; on pine, ash and basswood at

Belleville, Hastings Co., Ont.; on young pines and poflars at Wooler, Ont. (Macoun.)

532. A. dispersa, (Schrad.) Nyl.

On bark, Irishtown, Newfoundland. (Waghorne.) On bark of young maples at Ottawa, Ont., April 16th, 1892, and on maple bark near Leamy's Lake, Hull, Que., 1897. (Macoun.)

533. A. taediosa, Nyl.

On young beech and maples at Buckingham, Que., May 14th, 1896. (Macoun.)

534. A. populina, Mass.

On poplar bark at Grand Lake and Lark Harbour, Newfoundland. (Waghorne.)

535. A. raunidia, Nyl.

Labrador or Newfoundland. (Waghorne fide Eckfeldt)