Supplement.] 238 



LEPTOBRYUM PYRIFORME. 

 Var. jS. minus {Thil.) Husnot. 



Smaller in all its parts. Capsule shorter, the peristome pale and short, with 

 incomplete cilia. 



Syn. — Leplobryum minus Philibert Muse. GalL no. 768. 



Ukptobryum fyriforme /S minus Hnsu. Muse. Gall. 221 (1888). Limpr. in Rabenh. D. kr. fl. 

 Laubm. ii, 216. 



Hab. — ^Wet flat in Coatham Marshes, Yorkshire {W. Ingham, July 1900) ! ! 



BRYUM ARCTICUM {R. Br.) Br. Sck. 

 Synoicous ; in small yellowish-green tufts, tinged with red. Leaves 

 oval acuminate, with an excurrent nerve, margin narrowly limbate revo- 

 lute. Capsule pendulous, ovd-pyriform, pale brown ; lid small, conical, 

 with a point. (T. CXXVII, C.) 



Stk.— PoAfio arctica R. Br. in Suppl. to Parry's Voy. 197 (1824), Flora vii, Beil. 1 18 (1825). 

 ScHWAEG. Suppl. Ill, P. II, t. 272 (1829). 



Hemisynapsium arctiaim Brid. Bry. univ. i, 606 (1826). 



Bryum arcticum Br. Sch. Bry. Eur. fasc. 32, Suppl, p. 2, t. 2 (1846). C. Muell. Synops. i, 

 269 (1849). ScHiMP. Synops. 345 (i860), 2 ed. 409. Milde Bry. Silas. 205 (1869). 

 JuRATZ. Laubm. Oest.-Ung. 260 (1882). Lesq. James Moss. N. Amer. 224 (1884). 

 BoniAY Muse. Fr. 277 (1884). Husn. Muse. Gall. 234, t. 63 (1889). Lihpr. in Rabenh. 

 D. kr. fl. Laubm. ii, 297, fig. 276 (1892). Dixon in Joum. Bot. 1900, p. 331. 



Synoicous ; in small yellowish-green tufts, more or less tinged with 

 vinous red. Lower leaves distant lanceolate, upper comant, oval acuminate, 

 pointed with the excurrent, toothed reddish nerve, margin revolute, with 

 a limb of 2 — 3 rows of brown narrow cells ; cells shortly rectangular at 

 base, rhombic above. Capsule clavato-pyriform, slightly curved, pale 

 brown, pendulous ; lid orange, conical with a point ; teeth of peristome 

 finely punctuate, orange, hyaline towards points ; endostome orange, with 

 two short cilia. 

 Hab. — On humus in clefts of alpine rocks, very rare. Fr. 8. 



On the ground, summit of Craig Chailleach, Perthshire {Dixon 1898), and on Ben Lawers 

 in 1900. 



Mr. Dixon kindly lent me his drawings of these three fine species of Bryum, 

 and, as he uses a higher amplification, the leaf-cells are larger in proportion to 

 my own figures. 



BRYUM LAWERSIANUM Philib. 

 Synoicous ; in small, dull green tufts. Leaves oval acuminate, mucro- 

 nate with the excurrent nerve, margin with a border of 5 — 6 rows of very 

 long, narrow cells ; areolation rhomboid ; capsule oval, with a long neck ; 

 lid small, convex. (T. CXXVII, D.) 



Syn. — Bryum Lawersiamim Phiubert Rev. bryoL 1899, p. 99. OixoN in Joum. Bot. 1900, p. 331. 



