HYPNACE^.] 26 [Amblystegium. 



HAD. On stones in wet places, rare. Fr. 4 5. 



Poynings, Sussex (Mitten 1895) ! ! 



The wide leaves with larger cells differ from those of serpens, and their 

 direction is also more or less squarrose, still it may be questioned whether 

 this is anything more than a broad-leaved state of A. serpens. 



9. AMBLYSTEGIUM RADICALE (P. Beauv.} Mitt. 



Autoicous; in pale green depressed tufts. Leaves distant, patent, 

 cordate-lanceolate, nerved to middle. Capsule on a long seta, 

 subcylindric, arcuate. (T. LXXXVIII, E.) 



SYN. Hypniim radicale P. BEAUV. Prodr. 68 (1805). BRID. Sp. muse. II, 248 (1812), Mant. 183 

 (1819), Bry. univ. ii, 651. SCHWAEG. Suppl. I, P. II, 255, t. 90 (1816). 



Hypnjim humile P. EEAUV. Prodr. 65. 



Stcreodon radicalis MITT. Journ. Linn. Soc. viii, 43 (1864). 



Amblystegium radicale MITT. Journ. Linn. Soc. Bot. xii, 569 (1869). 



Autoicous ; plants slender in pale green depressed tufts. Primary 

 stems trailing, with reddish radicles, and short erect, simple or ramulose 

 branches. Leaves distant, patulous subcordate and decurrent at base, 

 ovato-lanceolate, longly acuminate, subserrulate, the nerve vanishing 

 about the middle ; cells soft with little chlorophyl, oval-oblong, longer 

 and narrower than in A. serpens, rather wider at base, quadrate at 

 angles ; branch-leaves longer and less divergent. Perich. bracts large, 

 erect, ovato-lanceolate, acuminate, subserrulate above, nerve reaching 

 base of acumen, thick ; perigonial bracts broadly oval, acuminate, 

 nerveless. Capsule suberect on a very long red seta, cylindraceous, 

 arcuate, contracted below mouth, pale brown ; lid conical, yellow ; 

 peristome as in A . serpens, cilia slightly trabeculate. 



HAB. Rotten sticks and humus in wet shady places, rare. Fr. 4 5. 



Hurstpierpoint (Mitten 1854) ! ! Paddington, Warrington (Wilson 1864) ! Old willows by 

 Milnthorpe station (Barnes 1871) ! ! Newton in Bowland, Yorks. (Slater 1896) ! 

 Coatham marshes, Yorks. (R. Barnes 1892) ! ! 



Var. ft. serotinmn Lindb. 



Stem with long thick scattered papillose radicles; leaves with longer 

 points ; capsules yellowish-fuscescent. 



SYN. Hypnum serpens p. serotinum LINDB. in HARTM. Skand. fl. 9 ed. ii, 12 (1864). 

 Hypnum pachyrrhizon Lindb. MSS. 



Amblystegium porphyrrhizon SCHIMP. Synops. 2 ed. 715 (1876). 

 Ambl. radicale * pachyrrhizon LINDB. Muse, scand. 32 (1879). 



