HYPNUM. 219 



flexuosej spreading, hooked at apex only ; br. 1. naf- 

 rower, turned to one side, rarely falcato-secund, 

 lanceolate, tapering from an ovate, rounded base, 

 acuminate, slightly serrulate near apex, thinly nerved 

 more than half way, not sulcate, areolae enlarged at 

 base. Caps, small, oblong, curved, subcernuous, on a 

 very long seta, lid conical, mamillate. 



Marshes, bogs, &c. April, May. 



536. H. revolvens, Swartz. St. ii — 4 inches, erect 

 or procumbent, subpinnate. L. crowded, tortuous or 

 circinnate, falcate, ovate-lanceolate, acuminate, concave, 

 serrulate near apex, deep red or purplish, nerve strong, 

 more than half way, areolae not enlarged at base. 

 Caps, oblong, cernuous^ on a shorter seta, lid conical, 

 acute. 



Bogs and marshes. April, May. 



637. H. uncinatum, Hedw. St. about 2 inches, 

 slender, erect or procumbent, subpinnate. L. circinnate, 

 secund, very narrow, lanceolate setaceous from a 

 broader base, plicate, serrulate, nerved nearly to apex. 

 Caps, cylindrical, curved, cernuous, lid conical. 



Subalpine walls and rocks. May, June. 



Sub-genus 4. Cratoneuron. 



St. prostrate or ascending, radiculose and viUose, 

 Br. pinnate. Paraphyllia numerous, dissected. L. 

 obcordate-lanceolate, falcato-secund, cells linear; at 

 decurrent angles, lax, excavate, brown, opaque, nerve 

 thick. Caps, oblong cylindric, on a long seta, cernuous 

 from an erect neck. Dioicous. 



638. H. filicinum, Linn. St. 2 — 4 inches, suberect, 

 slender, pinnate, with purplish radicles. L. spreading, 

 falcato-secund ; st. 1. deltoid-ovate, tapering ; br. 1. 



