108 BRYACE.E. [Leptotrichum. 



6. L. Schimperi, Lesq. Plants subcespitose, nearly 

 simple, short, yellowish green : leaves open, flexuous or falcate- 

 secund, oblong at base, abruptly and narrowly long-subulate, 

 denticulate at the apex only, nearly filled in the upper part by 

 the costa; perichastial leaves sheathing at base, the inner tubu- 

 lose, long-subulate : flowers gemniiform, narrow, axillary : cap- 

 sule oblong, erect, cylindrical, robust, yellowish brown, with a 

 shorter thick pedicel ; lid longer than in the preceding species, 

 dark red, blunt at the apex ; teeth attached to a large orange 

 fugacious basilar membrane, slender, pale yellow, linear, irreg- 

 ularly divided, the segments broad, trabeculate (not articulate), 

 lacerate or perforated ; annulus simple : spores very large. — 

 Mem. Calif. Acad. i. 9 ; SuHiv. Icon. Muse. Suppl. 37, t. 24. 



Hab. Coast Ranges of California, near Mendocino City {Bolander). 



This species has the aspect of the last, but is easily recognized by its 

 greenish color, the shorter broader solid capsule on a shorter thick i^edicel, 

 the longer dark red operculum, the nuich longer leaves, larger basilar 

 areolation, and especially the peculiar characters of the peristome. 



7. L. glaucescens, Hampe, 1. c. Plants cespitose, soft, 

 glaucous ; stems dichotomous or fastigiate : lower leaves very 

 small, distant, lanceolate, the upper tufted, lanceolate at base, 

 linear-subulate above, distantly serrate toward the apex ; costa 

 percurrent ; areolation distinct : male and female flowers 

 gemmiform, terminal : capsule subcylindrical, thin ; lid nar- 

 rowly conical ; teeth attached to a very short basilar mem- 

 brane, the segments of various length, articulate, papillose, 

 purple. — Trichostomum glaucescens, Hedw. Muse. Frond, iii. 

 91, t. 37 ; Bryol. Eur. t. 184 ; Sulliv. Mosses of U. States, 26. 

 Scelania ccesia, Lindb. Utk. Nat. Grupp. Bladm. 35 ; Braithw. 

 Brit. Moss-Fl. i. 176, t. 26, F. 



Hab. Lake Superior (Agassiz); Brattleboro, Vermont (i^'rosi); Min- 

 nesota (Lapham); Rocky Mountains {Drumtnond, Bownie), etc. 



42. TRICHOSTOMUM, Smith. 

 Plants cespitose or puivinate. Leaves gradually lengthening 

 from the base of the stem upward ; areolation minute, chloro- 

 phyllose in the upper part, diaphanous in the lower. Teeth of 

 the peristome divided to the base into two equal semiterete 

 very papillose segments, either entire or sometimes irregularly 

 divided or connate. Flowers dioecious. 



