. A revision of the North American Isotheciaceae and Brachythecia [microform]. Mosses; Mousses. 160. C:f^G;2£rtiil Oregon, Willamette R. (L. F. Henderson). A specimen from Sauvie's Island, Oregon (C. G. Pringle no. 510), is probably re- ferable to this variety, as the leaves are almost entire, although broader instead of narrower than in the typical form. 2. Climacium Americanum Brid. Sp. Muse. Suppl. part 2 : 45. I8l2. Neckeradendroidcs Americana Q. Muell. Syn. 2: 122. 1851, Gainctophytc glossy green, 5-7 cm. high ; branches usually straight and tapering ; branch leaves closely imbricate, 2 x
. A revision of the North American Isotheciaceae and Brachythecia [microform]. Mosses; Mousses. 160. C:f^G;2£rtiil Oregon, Willamette R. (L. F. Henderson). A specimen from Sauvie's Island, Oregon (C. G. Pringle no. 510), is probably re- ferable to this variety, as the leaves are almost entire, although broader instead of narrower than in the typical form. 2. Climacium Americanum Brid. Sp. Muse. Suppl. part 2 : 45. I8l2. Neckeradendroidcs Americana Q. Muell. Syn. 2: 122. 1851, Gainctophytc glossy green, 5-7 cm. high ; branches usually straight and tapering ; branch leaves closely imbricate, 2 x i mm.; upper oblong-lanceolate, broadly auriculate ; lower ovate to ovate- lanceolate, denticulate below, sharply serrate above, more acute than in the last, bisulcate, costate nearly to apex ; leaf-cells more nearly uniform than in the last; median cells oblong-hexagonal, 5—7:1 ; stem leaves larger, 2-3 mm. long, entire, apiculate : peri- gonial leaves as in the last, except less frequently costate, bordered by a row of elongated cells, sometimes slightly denticulate at ex- treme apex ; antheridia oblong, narrowed at base ; paraphyses numerous, longer than antheridia ; perichaetium about 5 mm. long; the inner leaves oblong-ovate, 4-5 mm. long, slightly den- ticulate at extreme apex, long-acuminate, thinly costate to above the middle; the lower sometimes ecostate; cells linear above, broader and yellowish brown below. Sporophytc 2—3 cm. high; seta brown ; capsule cylindric, brown, about 6 mm. long, 5-6:1; peristome reddish-brown, teeth sometimes slightly perforated; spores 14—18//, maturing in autumn ; seldom fruiting. Type locality, Lancaster, Pa. (Muhlenberg). Swamps, wet soil and rocks, rotten logs, etc. This species is exclusively American. It is found in the northern and eastern States, ranging from Canada to North Caro- lina and probably south to the Gulf; west to Minnesota, Iowa, Illinois and Missouri. "Rocky Mountains eastward," Roll in Hedwigia, 36: 4
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