— 53 — 



,4-6 mm.) lower leaves more narrowly hyaline margined (four or five rows of 

 cells) spores larger (19-23//) and especially by having the dry capsule dilated 

 at the mouth, never constricted below the mouth. 



From Wrangell (Coville and Kearney, 407); Point Gustavus (Coville and 

 Kearney, 774); New Metlakatla (Trelease, 2239); Yakutat Bay (Trelease, 

 2337): Virgin Bay (Trelease, 2499): Hot Springs (Trelease, 2347). 



By the shape of its capsule, dilated at mouth, this species is very dis- 

 tinct from U. Briichii Hornsch. and inter?nedia Sch. It cannot be either 

 mistaken for U. conneciens Kindb., which, according to the author, has a 

 short, hardly emergent seta. U. caniptopoda Kindb. would appear, accord- 

 ing to the description, nearer to U. A laskana, but as Kindberg has recently 

 joined it to U. connectens^ we need not take it into account. Besides, he 

 gave it the aspect of U. crispula Bruch, which does not at all agree v/ith our 

 U. Alaskana, characterized by its great size and the length of its seta. 



Ulota crispa subcalvescens Card, and Ther. 



Capsule short, when moist as in U. C7'ispnla, but when dry and empty 

 constricted below the mouth as in U. crispa. Calyptra hairy only at apex. 



Baranof Island (Trelease, 234S in part). 



Two small tufts, mixed with U . phyl lantha Brid. 



Orthotrichum fknestratum Card, and Ther. 



Monoicous. in rather loose cushions, dark or blackish-green becoming 

 black within, stems frequently divided, i-i.5cm. high. Leaves erect, imbri- 

 cated when dry and barely spreading when moist, median leaves 3. 5mm. long, 

 by o 75-1 wide, the upper larger, lanceolate or ovate-lanceolate, acute, mar- 

 gins entire, revolute to near the apex; costa narrow, brownish, vanishing 

 below the apex; the lower leaf cells subhyaline, rectangular, 2-4 times lonv^er 

 than wide, shorter near the margin, walls sinuous, median and upper cells 

 unequal, roundish or short-ovate, 9-12//; walls incrassate; antheridial buds 

 below the archegonial, sessile, perichsetial leaves short with rounded apex, 

 ecostate or obsoletely costate, paraphyses filiform: capsule exserted on short 

 seta, i-2mm. long, pale yellow, ovate-pyriform, when dry, subglobose, 

 abruptly constricted at the base, when moist, gradually narrowed into a long 

 neck tapering into the seta, smooth or slightly striate when dry, 3mm. long 

 (with the neck) by 1.5 wide, stomata immersed, the strise are subindistinct 

 composed of yellower and more incrassate, cells; operculum depressed, long 

 beaked, the calyptra conical-campanulate, somewhat plicate, with white hairs 

 at the brown apex: the vaginule without hairs; peristome as far as observed 

 is simple, with eight bigeminate, pale-yellow, granulose teeth, when dry 

 erect or spreading, cancellate and cribose-perforate in the upper half. 

 Spores large for the genus, 24-28//, brown and papillose. 



From St. Paul Island (J. M. Macoun). 



This moss was distributed as O. aiiovialinii Hedw,. but it bears no resem- 

 blance to that species. It is allied to O. ci'ibosuni C. Muel. from the Chukchi 

 Peninsula, Siberia, chiefly by the shape of the capsule and from the struc- 

 ture of the peristomial teeth, but it differs from it by its larger size and the 



