Porsild's bryum (Haplodontium macrocarpum) COSEWIC assessment and status report: chapter 17

Collections Examined

*indicates collection localities visited personally by the Natalie Cleavitt.

Alaska. Chisik Island: NE shores, waterfall and dripping cliffs. 24 June 1993. Schofield 99133. ALTA, UBC, DUKE.

Alaska. Kodiak Islands, Sitkalidak Island, on sandy loam knolls (?). 25 August 1931. Eyerdam 29. DUKE.

Alaska. Mt. Hultén: crevice of limestone cliff. 29 July 1982. Schofield 78130. UBC, DUKE.

Alaska. Southeast, East slope of Marble Mt., opposite Drake Island, Glacier Bay. Shore gravels, marble bedrock. 9 August 1968. Worley 11248. UBC.

Alaska. Valdez area: Between Delta Junction and Valdez along Hwy 4. Keystone Canyon. On mesic, quartzite-slatey outcrops bordering the highway adjacent to Bridal Veil Falls. 120m elevation. 21 June 1977. Vitt 18255, 18251, 18260, 18254, 18253. ALTA.

Alaska. Brooks Range, Atigun Gorge (Philip Smith Mountains; at waterfalls. On wet rock. 27 June 1977. Spatt 629. ALTA.

*Alberta. Cadomin: In small pits of (otherwise) smooth face of overhanging rock in creekbed. 5200 ft. elevation. (site referred to as Mmac Boulder by the contractor) 10 July 1966. Pegg 2386. PMAE.

*Alberta. Cadomin (Mountain Park area): on north facing slope of Whitehorse Creek. On mesic calcareous bluffs. (site called Mmac2 in this report) 14 May 1977. Vitt 18161. ALTA.

*Alberta. Kananaskis Area: vicinity of Trolls Falls. Limestone rock in spray of falls. 4200 feet elevation. 26 July 1982. Crichton s.n. ALTA.

*Alberta. Mountain Park area: 1700 m elevation beneath small permanent waterfall over Cadomin conglomerate. 19 August 1991. Vitt s.n. (site called Mmac 1 in this report). Earlier specimen from this same site: 16 June 1984. Vitt 31249. ALTA.

Colorado. San Juan Co.: Cascade Creek, trail to Engine Creek, NW slope of Engineer Mt., damp cliff near falls. 8 August 1990. Schofield 95902. UBC.

Colorado. San Juan Co.: 7 mi. NE of Silverton on Hwy 110, on rock in a narrow gulch adjacent to the (abondoned) Eureka Mine. 26 June 1990. Shaw 6145. DUKE.

Greenland. Disko: Godhavn, Kuanit. 21 August 1971. Holmen & Mogensen 71-463. ALTA. (Note: type specimen for M. porsildii collected here 1898).

Michigan. Alger Co.: Pictured Rocks National Lakeshore, South shore of Lake Superior at Miner's Castle, on sandstone. 3 November 1990. Shaw 6176. DUKE.

Montana. Park Co.: Silver gate on roof of limestone overhang at waterfall. 29 August 1948. Conard 48-988. Subsequent collections from this site: 1 mi. SE of Silver gate, Fall Creek, on Cambrian limestone. 25 August 1953. Whitehouse 27618. Silver gate and vicinity. 1992. Shaw 6014 and three other collections s.n. DUKE.

*Newfoundland. Northern Peninsula: Straitsview: north facing black shale sea cliffs on side of harbor in crevices of cliff just above tidal level. 18 August 1982. Hedderson 882 (Bryophyta Exsiccata Terrae-Novae et Labradoricae 139). ALTA. Subsequent collections: 1 August 1987. Schofield 89142. UBC.

Nunavut. N. Ellesmere Island. Head of Tanquary Fiord, 3 km south of base camp at 300 m elevation, under very wet overhanging limestone ledge. 17 July 1964. Brassard 1535. UBC, PMAE.

Excluded specimens (not M. macrocarpa):

Alberta. Kananaskis County. Troll Falls. Spray zone of calcareous waterfall. 1830 m elevation. 6 July 2000. Hastings. PMAE.

Colorado. Summit Co. Blue Lake Dam area, Monte Cristo Creek Valley between Mt. Quandary and N. Star Mt. 26 August 2000. Weber et al.  B-111101. DUKE.

Colorado. Gunnison Co. Elk Mts., just south of Schofield Pass across from Emerald Lake. Noted as "probably the type locality" and "very abundant". (Note this would be the type locality of Bryum nelsonii). 15 August 2000. Weber et al. B-111098. DUKE.

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