108 



Specimens. Basal areolation of the leaves less quadrate and 



more sinuous than figured by Dr, Braithwaite (British Moss 



Flora, ii. t. xlvii, E), but a specimen collected by him agrees 



with American specimens (see figs, a, b, 4 and 5). Gapsule 

 exserted on a slender, curved pedicel, 3 to 5 mm. long, erect 

 and twisted when dry, less than i mm. long, prolate-spheroidal 

 when young, cylindrical and ridged when old and brown; 

 operculum with a long, straight beak, just covered with the 

 brownish, mitrate calyptra ; annulus none, peristome also lack- 

 ing on the only specimen which still retained the operculum; 

 perichaetial leaves three, longer and stouter than the stem-leaves, 

 with a short hyaline, serrulate point, twisted around the base of 

 the pedicel when dry, erect-patent when moist. 



Closely resembling G, trichophylla, Grev., but capsule smaller 

 on a pedicel longer in proportion to its size, more closely twisted 

 when dry; teeth not present on any of the old capsules, Dr^ 

 Braithwaithe says, "short jointed filaments producing globose 

 propagula at upper end, are frequent upon the leaves (L c. I5> f- 

 lo) these do not seem to be at all abundant upon American spec- 

 imens, but appear rather as short, bifurcating, irregular filaments, 

 than as moniliform hairs. 



Gri7?i7ma pidvinata (L), Smith. Mixed with G. trichophyll^ 



(147 in part). 

 Grhnmia p2ilvt7iaia, var. obtusa (Brid.), Huebn. (3 in part). 

 Grimmia trichophylla, Grev. (3 in part, 147 in part). 

 Grhnmia Donii^ Smith. Spokane Falls, Washington (iio). 

 Grimmia montana, Br. & Sch. Granite ledges (53). 

 Grimmia ovata, Web. & Mohr. (C. commutata, Huebn.), Lesq. 



& James, Manual, 145). (17). 

 Grimmia ovalis (Hedw.), Lindb. G. ovata^ Lesq. & James, I.e. 



143 not Web. & Mohr). (13). 

 Grimmia microcarpa (Gmel.), Lindb. Rhacomitrinm Sudeticum, 

 Br. & Sch. On gneissoid rocks, west of Lake Fend d'Oreille. 



(102 in part). 

 Grimmia hetcrosticha (Hedw.), C. Muell. {R. heterostichtinh 



Brid.) (123). 

 Grimmia pateris (Dicks.), Br. & Sch. (^R. patens, Huebn., North 



Fork Basin, Lake Coeur d'Alene, mixed with 102). (127). 

 Grimmia acicidaris (L.), C. Muell. R, acicidare, Brid.) In 



