422 SPHAGNACEJS. Spliagnum. 



2. S. compactum, Brid. Stems more or less densely cespitose, 2 to 5 inches 

 high, dichotomously divided ; branches 2 or 3 in a fascicle, much crowded, short, 

 erect or spreading ; cortical utricles without striae : cauline leaves minute, ovate, 

 reflexed ; branch leaves erect-spreading, ovate-oblong, concave with inflexed margin, 

 obtusely toothed and usually cucullate at the apex ; ducts compressed and wholly 

 included between the utricles : monoecious, the male flowers on the pendulous 

 branches : capsule immersed or shortly emergent, truncate-oblong. Schwaegr. 

 Suppl. t. 3; Wilson, 1. c., t. 61. S. rigidiim, Schimp. 1. c., t. 18. 



Yosemite Valley in the spray of Vernal Falls, and on Mount Dana (Bolander) ; Alleghany 

 Mountains ; Europe. 



3. S. molluscum, Bruch. Stems delicate, very fragile, 2 to 6 inches high, 

 very softly cespitose, simple or biparted ; branches 1 to 3, short, slender, all spreading 

 or 1 or 2 reflexed : stem leaves erect-spreading or reflexed, roundish ovate with in- 

 curved margin ; branch leaves loosely imbricated or occasionally secund, elliptical or 

 ovate-oblong, very concave, incurved above ; ducts compressed-triangular, the lower 

 surface free : dioecious, the male plants usually in distinct tufts : capsule small, red- 

 dish, more or less exserted. Wilson, 1. c., t. 60; Schimp. 1. c., t. 21 ; Berkeley, 

 1. c., fig. 3. 



Cascade Mountains, Oregon (Ncwberry) ; New Jersey ; Europe. 



* * Leaves acute or acuminate, ovate or ovate-lanceolate. 

 H Leaves erect-spreading. 



4. S. acutifolium, Ehrh. Stems slender, 5 to 10 inches long, loosely cespitose, 

 usually more or less tinged with purple ; branches in numerous fascicles of 3 to 5, 

 slender, attenuate : cauline leaves acuminate-ovate, mostly erect, concave, erose at 

 the apex ; branch leaves imbricate, ovate- to long-lanceolate, very concave, erose at 

 the slightly truncate apex ; ducts triangular, the upper side free : flowers monoecious : 

 capsule long-pedicelled. Schwaegr. Suppl. t. 5 ; Wilson, 1. c., t. 4 ; Schimp. 1. c., 

 t. 13, 14 ; Berkeley, 1. c., fig. 4. S. capillifolium, Hedw. ; Engl. Bot. t. 1406. 



Upper Tuolumne Canon and on Mount Dana (Bolander) ; on the Columbia River (Ncwberry) ; 

 frequent in the Atlantic States and Europe. 



5. S, fimbriatum, Wilson. Much like the last, but more slender and delicate, 

 green, never purplish, often a foot long or more ; branches very attenuate, arcuately 

 decurved : cauline leaves closely appressed, obovate-spatulate, very obtuse, laciniately 

 fringed ; branch leaves acuminate, entire at the apex ; perichsetial leaves large, 

 obovate, repand, and convolute : pedicel shorter. Bryol. Brit. t. 60 ; Schimp. 1. c., 

 t. 15. 



On Mount Brewer, at 11,000 feet altitude (Bolander); British America (Drummond) ; northern 

 Atlantic States and Europe. 



6. S. Mendocinum, Sulliv. & Lesq. Stems 7 to 10 inches long, in loose 

 floating mats, reddish yellow above, pale yellowish below ; branches in fascicles of 

 3 to 5, long, flexuose and attenuate, spreading : cauline leaves oblong-ovate, obtusish, 

 suberect or recurved-spreading ; branch leaves loosely imbricate, oblong-lanceolate, 

 acuminate, concave, convolute and toothed at the apex ; ducts narrowly triangular, 

 the outer side free : fruit unknown. Sulliv. Icon. Muse. Suppl. 12, t. 3. /S. auri- 

 culatum, Lesq. Mem. Calif. Acad. i. 4, not Schimp. ; Sulliv. & Lesq. Muse. Ain.-Bor. 

 Exsicc. 2 ed. n. 23. 



In great bogs near King's Eiver, at 8 - 9,000 feet altitude (Brewer) ; swamps near Mendocino 

 City, Bolander. 



t Leaves more or less squarrose or subsecund. 



7. S. subsecundum, Nees and Hornsch. Stems 3 to 6 inches long or more, 

 in yellowish green or often brownish variegated mats ; cortex simple ; branches 2 

 or 3 together, attenuate or flagelliform, recurved : cauline leaves small, broadly 



