270 CARDOT AND THERIOT [3 10 ] 



seriebus cellularum), sporis majoribus, diam. 19-23 //, et praesertim 

 capsula siccitate ore dilatata, nunquam infra orificium constricta. 



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 the mouth, this species is very 

 distinct from U. bruchii Hornsch. and U. intermedia Sch. It can- 

 not be, either, mistaken for U. connect ens Kindb., which, according 

 to the author, has a short, hardly emergent seta. U. camptopoda 

 Kindb. would appear, according to the description, nearer to U. 

 alaskana, but as Kindberg has recently joined it to his U. con- 

 nectens, we need not take it into account. Besides, he gave it the 

 aspect of U. crispula Bruch, which does not at all agree with our U. 

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



Ulota crispa subcalvescens var. nov. 



Capsula brevis, madida ut in U. crispula, sed sicca et vacua sub 

 ore constricta ut in U. crispa. Calyptra tantum apice pilosa. 



Baranof Island (Trelease, 2348 in part). 



Two small tufts, mixed with U. phyllantha Brid. 

 Ulota barclayi Mitt. Journ. Linn. Soc., vin, p. 26. 



From Cape Fox (Trelease, 2384). First discovered at Sitka by 

 Barclay. 



Orthotrichum arcticum Sch. Br. eur. Suppl., pi. 5, et Syn., ed. 2, p. 

 310. 

 From St. Paul Island (Trelease, 2081, 2470). New to Alaska. 



Orthotrichum fenestratum sp. nov. 



(PI. XVI, fig. 2- n .) 



Monoicum, laxiuscule pulvinatum, atroviride, intus nigricans. 

 Caulis pluries divisus, 11.5 centim. altus. Folia erecta, sicca im- 

 bricata, madida vix patentia, media 3.5 millim. longa, 0.75-1 lata, 

 superiora majora, lanceolata vel ovato-lanceolata, acuta, marginibus 

 integris usque apicem versus revolutis, costa angusta fuscescente sub 

 apice evanida, cellulis inferioribus subhyalinis, rectangulis, 2-4 long. 

 quam lat., margines versus brevioribus, parietibus sinuosis, mediis et 

 superioribus inaequalibus, rotundatis vel breviter ovatis, diam. 9-12/4, 

 parietibus incrassatis. Flos masculus sub femineo sessilis, foliis peri- 

 gonialibus brevibus, apice rotundatis, ecostatis vel obsolete costatis, para- 



