569. V. epigaea, (Pers.) Ach.

Labrador or Newfoundland. (Waghorne fide Eckfeldt.) On earth along the Gaspé coast, Que., Aug. nth, 1882. (Macoun.)

570. V. maura, (Wahl.) Nyl.

On granitic rocks by the sea shore.

Greenland. (Vahl.) On rocks, Labrador or Newfoundland. (Waghorne fide Eckfeldt.) Fort Alexander, Cook's Inlet, Alaska. (Rothrock.)

571. V. centhocarpa, Wahl.

On granite rocks often wet by the sea.

Greenland. (Vahl.) Fort Alexander with the above species. (Rothrock.)

572. V. nigrescens, Pers.

On limestone rocks, Canada. (A. T. Drummond.)

573. V. intercedens, Nyl.

Cape Lisburne, Alaska. (Rothrock.)

574. V. intermedia, (Th. Fr.) Willey.

Cape Lisburne, Alaska. (Rothrock.)

575. V. rupestris, Schrad.

On rocks St. John's Beach, Newfoundland. (Waghorne.) On limestone rocks, Kingston, Ont. (A. T. Drummond.) On limestone cliffs, Rockcliffe, Ottawa, Ont., Nov. nth, 1896. (Macoun.)

576. V. nigricola, Arnold.

On bark, Middle Arm, Newfoundland. (Waghorne.)

577. V. theliodes, Sommerf.

Labrador or Newfoundland. (Waghorne fide Eckfeldt.)

578. V. Nylanderi, Hepp.

On limestone rocks, Kingston, Ont. (A. T. Drummond.)

579. V. microloba, Tuckerm.

On limestone rocks, Kingston, Ont. (A. T. Drummond.)

580. V. terrestris, Th. Fr. Behring Strait. (Wright.)

581. V. Nepigona, Tuckerm.

On the surface of peat on rocks, Lake Nipigon, July 10th, 1884. (Macoun.)

582. V. bryofhila, Lormr.

Labrador or Newfoundland. (Waghorne fide Eckfeldt.)

583. V. rimosicola, Leight.

Parasitic on Buellia excentricum, [Labrador or Newfoundland. (Waghorne fide Eckfeldt.)

584. V. amylacea, Hepp.

On limestone rocks, Goose Arm, Newfoundland. (Waghorne.

585. v. chlorotica, Ach.

On stones, Goose Arm, and Lark Harbour, Newfoundland. (Waghorne.)

586. V. pachyderm a, Arnold. On rocks, Lark Harbour, Newfoundland. (Waghorne.)

587. V. aquatilis, Mudd.

On stones, Goose Arm, Newfoundland. (Waghorne.)

588. V. papillosa, Floerke.

On stones, Clark's Brook, Davis Cove, St. John's Beach, Middle Arm, Halfway Point, Coal River and River Head; also another form at Chimney Cove, and another at Wild Cove, Newfoundland. (Waghorne.)

589. V. brachyspora, Arnold.

On stones, Middle Arm, Newfoundland. (Waghorne.)

590. V. dolosa, Hepp.

On stones, Leading Tickle and Frenchman's Cove, Newfoundland. (Waghorne.)

591. v. epidermidis forma punctiformis, Branth.

Greenland. (Arct Man.) On living alder stems along the Rideau Rive , south of Ottawa, Ont., April 30th, 1897. (Macoun.)