266 BULLETIN OF THE UNIVERSITY OF WISCONSIN. 



below, yellow above. Bot. Gaz. 15: 39. 1890. Moist sunny rocks: Mt 

 Hood, Oregon. 



66. Dicranum molle Wils. Tufts large, dense, 6-15 cm. high, yellow 

 green or olivaceous above, fuscescent below: stem eradiculose: leaves erect- 

 patent, straight, oblong lanceolate, subulate, entire, very concave or semi- 

 tubulose above by incurved margin, auricled at base; costa narrow, per- 

 current or excurrent; alar cells large, orange, quadrate, remainder narrow 

 linear: perichaetial leaves oval-oblong, sheathing, suddenly subulate, im- 

 perfectly denticulate at apex: capsule oblong-cylindric, cernuous incurved, 

 substrumose, not striate, fuscescent; annulus simple; lid short beaked; 

 peristome purple: monoicous, male inflorescence close to perichagtium. 

 Braithw. British Moss Flora 1: 144. pi. 20. Greenland. 



67. Dicranum longifolium coinpactum Ren. and Card. Plants small, 

 in very compact tufts: stems 1-2 cm. long: leaves half as large as type, 

 erect, straight or slightly flexuous; costa very large, J or % the width of 

 leaf at base, canaliculate and very rough on back: sterile. Fl. Miq. 42. 

 Miquelon. 



68. Dicranum Sauteri pachytrichum Kindb. Stem very tomentose in 

 its whole length: leaves nearly entire; costa very much narrower than type: 

 pedicel short, about 1 cm. long. Mac. Cat. 260. On sticks in a brook: 

 Selkirk Mountains. 



69. Dicranum Groenlandicum Brid. Dioicous, male plants unknown: 

 appearance of D. elongatum: tufts thick, about 6 cm. high, bright yel- 

 lowish green, slightly radiculose: leaves rigid, when dry densely appressed 

 with slightly bent points, never secund, linear-lanceolate, tubulose near 

 apex, blunt, margins entire; costa weak, T \y greatest width of leaf, percur- 

 rent or vanishing below apex; alar cells large, distinct, the remainder 

 elongated, thick walled, pitted: inner perichaetial leaves ecostate or with a 

 weak costa: capsule erect, small, about cylindrical, somewhat curved, 

 short and narrow-necked, faintly striate; annulus of one or two rows of 

 cells; lid longer than capsule, obliquely rostrate; peristome orange, teeth 

 divided to below middle, above pale and almost smooth. Limpr. Laubm. 

 1: 364. Miquelon Island; Mansfield Island, Hudson strait; Jupiter River, 

 Anticosti; Labrador; Greenland. 



70. Dicranum fuscescens Turn. Dioicous: tufts dense, 1-6 cm. high, 

 mostly brownish green, rarely dark green, not shining, more or less brown- 

 ish radiculose: stem erect, fasciculately branched, leaves irregularly spread- 

 ing, rarely secund, when dry somewhat crispate, very long, concave subu- 

 late from a narrow lanceolate base, margin toothed above; costa strong, 

 f- leaf base; leaf cells not or only sparingly pitted, mamillose on under 

 side, elongated rectangular below, rectangular in middle and quadrate 

 above: inner perichaetial leaves suddenly narrowed above middle into a 



