HYPNACE^.] 35 [Amblystegium. 



fuscous; lid conical, pointed, peristome yellow. Male plant slender, 

 with few branches. 



HAB. Marshy ground among grass ; common. Fr. 6, rare. 



Sometimes we find a short yellowish single or forked nerve present, but 

 so faint that it looks like a mere stria ; the size of the plant also varies 

 considerably though generally retaining the habit of the ordinary form. 



18. AMBLYSTEGITTM POLYGAMUM Br. Sch. 



Polygamous ; resembling^ . stellatum, stems procumbent, subpinnate. 

 Leaves erecto-patent, ovato-lanceolate, entire, nerved above half-way. 

 Capsule ob)ong, subcernuous. (T. XC, E.) 



SYN. Amblystegium polygamum BR. SCH. Bry. eur. fasc. 55 56, p. 16, t. 10 (1853). LINDB. 

 Muse, scand. 32 (1879). 



Hypnum polygamum WILS. Bry. brit. 365, t. 56 (1855). SCHIMP. Coroll. 131 (1856), 

 Synops. 604 (1860), 2 ed. 726. BERK. Handb. br. m. 102 (1893). MILDE Bry. siles. 345 

 (1869). HOBK. Synops. 166 (1873). BOUL. Muse. Fr. 65 (1884). LESQ. JAMES Moss. 

 N. Amer. 379 (1884). HUSN. Muse. gall. 366, t. 104 (1893). Dix. JAMES. Stud. 

 Handb. 453 (1896). 



Hypnum nodiflorum WILS. MS. 



Polygamous ; in lax spreading yellowish-green or fulvescent tufts. 

 Stems subpinnate with short slender divergent branches. Leaves 

 erecto-patent, sometimes subsecund, scariose, from a narrow base 

 ovato-lanceolate, narrowed into a long acute acumen, entire, nerved half- 

 way or more, cells narrow, linear, laxer at base, 3 4 rows rectangular 

 larger and coloured yellow at the subexcavate angles. Female and 

 synoicous infl. aggregated at base of perichaetial branch, which is very 

 short ; perich. bracts erect, inner lanceolate, sulcate, with a subulate 

 point and slender nerve ; seta slender, capsule incurvo-cernuous and 

 horizontal, ferruginous, lid pointed. 



HAB. In swampy places. Fr. 5. 



Sands of Barrie, Dundee (Grcville). Portmarnock and Malahide sands, Dublin (Moore). 

 Southport sands (Marrat) ! ! Taunton and Rochdale, Lane. (Gordon). 



Var. /3. stagnation Wils. 



Plants larger and more robust ; stem longer, suberect, more pinnate, 

 leaves with a longer nerve. 



SYN. Hypnum stagnation WILS. MS. 



Hypnum polygamum (3. stagnatum WILS. Bry. brit. 365. 

 Hypnum fallaciosum JURATZKA MS. 



