Supplement.] 229 



16. DICRANUM STRICTUM Schleicher. 

 Dioicous ; in short yellowish tufts. Leaves fragile, and generally 

 broken off in the upper part, lanceolate-subulate, entire, auricled at base. 

 Capsule cylindraceous, lid rostrate. (T. CXXV, D.) 



Syn. — Dicranum strictum Schleich. Crypt. Helv. Cent. Ill, 26 (1806). Schwaeg. Suppl. I, P. I, 

 188, t. 43 p.p. (181 1). Brid. Mant. 67 (1819), Bry. univ. i, 459 (1826). Funck Moost. 30, 

 t. 21 (1821). HuEBEN. Muse. germ. 247 (1833). Br. Sch. Bry. Eur. fasc. 37-40, p. 28, 

 t. 19 (1847). C. MuELL. Synops. i, 376 (1849). Schimp. Synops. 81 (i860), 2 ed. 82. 

 De Not. Epilogo 629 (1869). Juratz. Laubm. Oester.-Ung. 40 (1882). Boul. Muse. Fr. 

 '541 (1884). HusN. Muse. Gall. 29, t. 9 (1884). Limpr. in Raben. D. kr. fl. Laubm. i, 367 

 (1886). Dix. James. Stud, handb. 112 (1896). 



Dioicous ; in stiff yellowish-green tufts, slightly glossy, ^ — i in. high, 

 radiculose. Leaves erecto-patent, stiif and fragile, lanceolate-subulate and 

 deeply channelled above, the nerve longly excurrent, margin entire ; angular 

 cells inflated orange, rectangular, becoming smaller and quadrate upward. 

 Perichsetial bracts sheathing suddenly subulate above middle ; seta yellow ; 

 capsule erect or cernuous, narrow and cylindric, pale yellowish, lid subulate- 

 rostrate, I length of capsule ; teeth of peristome narrow, orange. 

 Hab. — On rotten wood and trees, rare and sterile. 



On decayed rails, Blithfield Park near Abbots Bromley, Stafford (^Bloxam 1864) ! ! Near 

 Ingestre, Stafford (Dr. Eraser 1866). Stone wall, Alton Towers, and on trees near 

 Admaston, Stafford {Bagnall 1895). Hampton Lovett and Droitwich, Worcester. 

 Roslyn wood near Edinburgh. Priory Park, Hawkesyard, Stafford (Rev. H. P. Reader). 



This plant must replace D. viride, vol. i, p. 156, which is unknown as a 

 British moss, but specimens of the Abbots Bromley plant were sent by Hunt to 

 Lindberg, who named them D. viride in a paper sent to the Linnean Society 

 (Journ. Linn. Soc. Bot. xi, 466)- At that time I had no specimen, except a foreign 

 one, of D. viride, and this was figured, but Mr. Bagnall has sent me some of 

 Bloxam's plant which I now figure, and he has also found it in several other 

 localities. 



Dicranum undulatum has been found near Holme-on-Spalding Moor, Yorks. 

 {_/. Marshall 1896), and at Callow Hill,, Virginia Water (E, F. Shepherd 1900). 



ONCOPHORUS POLYCARPUS. 

 Var. laxiretis Dixon. 



Syn. — Cyttodontium polycarpum var. laxirete Dixon Handb. 73. 



O. polycarpoides Stirton Ann. Scott, nat. hist. 1902, p. 107. 



Leaves longer and broader, upper cells 3 — 4 times as large as in the type, 

 quite smooth, more regularly quadrate, margin entire except at apex ; capsule 

 cylindric, with a longer neck, swollen at base of capsule equally all round, when 

 dry and empty the capsule is very long and narrowing gradually down from the 

 wide mouth. 



Hab. — On a wall in Glen Lyon, Perthshire {Dixon 1893). 



Ceratodon purpureus var. obtusifolius Milde. Limpr. Laubm. i, 487. 



Stems elongated, 2 — 3 in. high. Leaves obtusely pointed, the nerve vanishing 

 below apex. 

 Hab. — Foot of a willow tree, bank of the Kelvin below Kirkintilloek (Kidston 1897) 1 ! 



