Hypnace^.] 63 [Aniblystegium. 



narrow flexuose cells above them ; nerve vanishing below apex. Fruit 



of .4. cordifolium. (T. XCVI, A.) 



Syn. — Hyfnum cordifolium p. fasciculatum De Not. Syllab. 44 (1838). 



Hypnum cordifolium (3. compactum C. Muell. Synops. ii, 380 (185 1). 



Hypnum cordifolium Var. stenodictyon Bry. eur. fasc. 57 — 61 (1854). 



Hypnum giganteum Schimp. Synops. 642 (i85o), 2 ed. 787. Berk. Handb. add. p. xxxv 

 {1863). MiLDE Bry. siles. 368 (i86g). Hobk. Synops. 178 (1873). Boulay Muse. fr. 

 14 (1884). Lesq. James Moss. N. Amer. 403 (1884). HusN. Muse. gall. 416, t. 120 

 (1894). Dix. James. Stud. Handb. 489 (1896). 



Amblystegium giganteum De Not. Epilogo 135 (i86g). 



Dioicous ; in deep fastigiate tufts 6 — 12 in. high, deep lurid or 

 yellowish green. Stems erect, sparingly radiculose, densely pinnate, 

 the branches accrescent for | its length, then decrescent to apex, 

 patulous, obtuse or acute towards apex. Cauline leaves large, erecto- 

 patent, somewhat glossy, broadly cordate- and oblong-ovate, obtuse 

 or subcucullate at apex, at the decurrent angles deeply excavate, hyaline 

 or rufescent ; nerve compressed, reaching nearly to apex; cells of 

 auricles large, inflated, quadrate, occupying J width of base and sharply 

 defined from the upper long narrow linear flexuose cells. Branch-leaves 

 long, Ungulate, the terminal subulate and tubulose. Perichsetia some- 

 times crowded, long, bracts imbricated, inner oblong-lanceolate, sub- 

 convolute. Capsule on a tall purple seta, horizontal, oblongo-cylindric, 

 gibbous, orange-brown, exannulate, teeth of peristome yellow. Male 

 plant smaller with fewer branches, infl. numerous, minute gemmiform. 

 Hab. — Deep bogs on heaths and banks of streams. Fr. 5 — 6. 



Hale moss and Wybunbury bog, Cheshire c. fr. (Wilson 1863) ! ! The Keltie burn above 

 Brachlin falls, Callander (Braithwaits 1865) ! ! Balquidder, Lochearnhead (Hunt 1865) ! 

 Auchinblae, Kincardine c. fr. (Hunt 1871) ! Near Whitworth green station, Birkdale 

 (Wilson 1^6^). Near Oxford (BojzfWZ 1894) ! ! Benson Knott, Kendal (BJnsfcsd 1885). 

 Rhos Goch, Radnor (Binstead 1892). 



This fine moss was named by Wilson spuvium and also spectabile, and is 

 readily known by its ramification and cell-structure. A very closely allied 

 species, intermediate between this and cordifolium, was found in America, and 

 named Stereodon Richardsoni by Mitten, afterwards detected in Europe and 

 named Hypnum Breidleri by Juratzka ; it has been found in the Swiss alps 

 and throughout Scandinavia, so we hope it may be found also to be native 

 here. Its differential characters are — Autoicous and more nearly resembling 

 cordifolium, but more branched, the leaves closer, shining, with less distinct 

 auricles, the median cells shorter and wider than in giganteum ; perich. bracts 

 nerved to f . — . 



39. AMBLYSTEGIUM CORDIFOLIUM {Hedw.) De Not. 



Autoicous ; stem repeatedly divided, with distant, irregular pinnae. 

 Leaves erecto-patent, cordate-ovate, muticous, longly decurrent, cells 



