SKETCH OF THE FLORA OF ALASKA.. 4G1 



B. inclinatum, Br. and Sell., Kotzebue sound. 



B. capillare, Hedw., Sitka. 



B. arg-onteiim, Linn., Iktigalik. 



Mnium punctatmn, Iledw., Sitka. 



M. rostratum, Schjvaeg., Kotzebue sound. 



M. affine, var. Zelatum, Br. and Sell., Sitka, 



]\[. Meiiziesii, Hook., Sitka. 



Aulacomnion turgiduni, Scliwseg., Kotzebue sound. 



A. palustre, Scliwseg., Kotzebue sound, Sitka and Nulato. 



Pogonatum capillare, Miclix. and Brid., Kotzebue sound and Sitka, Alaska. 



P. alpinum, Linn., var. foliis capsulis longioribus, Kotzebue sound and Sitka.* 



P. alpinum, var. furcatuni, Brid., SehiscliiniarefF bay, (Cliamisso.) 



P. alpinum, var. campanulatum, Brid., Ounalaslika^ (Cliamisso.) 



P. atrovirens. Mitten, Sitka, (Barclay.) 



P. contortum, Mcnz., nortbwestern coast of Russian America, (Menzies.) 



P. dentatum, Menz., northwestern coast of Russian America. 



Polytriclium gracile, Menz., Kotzebue sound. 



P. formosum, Hedw., Alaska, (Kellogg.) 



P. cavifolium, Wilson in Bot. IIerald^'(Seeman,) Kotzebue sound. 



P. piliferum, Scbrcb., Alaska. 



P. juniperinuin, Willd., Kotzebue sound and Nulato. 



P. juniperinum, var. strictum, Br. and Sell., Kotzebue sound and Sitka. 

 _P. juniperinum, var. foliis distantibus, angustioribus patulis, Kotzebue sound, 

 Bitka, and Nulato. 



P. commune, Linn., Sitka. 



Antitricliia curtipendula, Brid., Sitka. 



A. Oalifornica, Lesqx., Alaska. 



Neckcra Douglassii, Hook., Steekine, Alaska. 



N. Menziesii, Hook., Alaska. 



Alsia Oalifornica, Lesqx., Alaska. 



Hypiium triquetrum, Linn., Nulato and Alaska. 



H. loreuin, Linn., Sitka and Alaska. 



H. squarrosum, Linn., Sitka. 



H. crispifolium. Hook., Northwestern Russian America, (Menzies.) 



H. laxifolium. Hook., Northwestern Russian America. 



H. splendens, Hedw., Nulato and Alaska. 



H. strigosum, Hoffm, Nulatb. 



H. undulatum, Linn., Sitka. 



H. lutescens, Huds., Kotzebue sound and Alaska. 



H. myosuroides, var. stoloniferum. Hook., Northwestern Russian America, 

 Sitka, and Alaska. 



* Mr. W. H. ])all, in 1865-66, collected a number of mosses in Eastern Siberia, on ths 

 western side of Bebriug-s' straits, and opposite to Norton sound, among wbich was a new 

 species of Pogonatum, which no doubt will be detected in Alaska, when explored. The 

 species being interesting, it is deemed appropriate to introduce it by the following description : 



Pogonatum lamellosum, sp. uov., dioicum, caule simplici vel ramose, foliis solidis rigidis 

 incurvis cauli appressis ; e basi pellucida latiore amplexicaule, concavis lanceolato-acumina- 

 tis margine Integra aut denticulata, lamellis numerosis margine subitotumidis, foliipaginam 

 e basi ad apicem totam occupante : penchretialibus o basi longioribus vagiuantibus erectis 

 angusto-lanceolatis, tenui costatis ; perigonalibus externis angusto-lanceolatis, externis \ 

 obcordato-apiculatis ; capsula in pedicello flexuosa unciali, globosa vel ovato-cylindrica 

 obliqua aut cernua, operculo e basi depresso-convexo rostellato iucurvo couico, peristomii 

 dentibus aqualibus : calyptra nou visa. 



This beautiful Pogonatum is more slender than P. urnigerum, the lamilbe of the leaves 

 occupy tlie entire upper surface from the sheathing base to the apex ; the leaves most readily 

 separate from the translucent clasping base; the margins of the leaves are mostly entire, 

 occasionally more or less denticulate at the apex. The capsule is globoseiy oval in form 

 and curved, the operculum appears to be shortly rostrate. 



