Supplement.] 239 



Synoicous ; resembling B. arcticum, but more scattered, in small dull 

 green tufts, blackish at base, radiculose. Leaves at base broadly oval 

 or suborbicular, acute and plane at margin ; comal leaves much less 

 acuminate, recurved at apex, mucronate with the excurrent nerve, upper- 

 most lanceolate, the margin with a limb of 5 — 6 rows of very long narrow 

 cells ; areolation firm, close and opaque, the cells rhomboid ; capsule 

 regular, oval, pendent, brown ; lid small, convex, with a small acute 

 mamilla ; teeth of peristome gradually acuminate, orange, papillose in 

 upper \, the ventral surface hyaline, of many close joints without accessory 

 partitions ; endostome adherent. 



Hab. — On the bare ground, on mountains, very rare. 



Ben Lawers {Dixon)j /foo . 



BRYUM MAMILLATUM Ltndb. 



Autoicous ; in low dense tufts. Leaves crowded, oblongo-lanceolate, 

 margin revolute, with a yellow border of 4 rows of long narrow cells, nerve 

 excurrent in a denticulate point. Capsule pendulous, turgidly pyriform, 

 lid mamillar. (T. CXXVII, B.) 



Syn. — Bryum mamillatum Lindb. in Hartm. Skand. fl. 9 ed. ii, 36 (1864), et Not. ur. Saells. Fn. 

 Fl. fenn. foerh. ix, 264 (1868), Muse. Scand. 16 (1879). Schimp. Synops. 2 ed. 417 (1876). 

 LiMPR. Laubm. ii, 328 (1892). Dixon Trans. Norfolk & Norwich Nat. Soc. vii, 562 (1903). 



Autoicous ; in very low, dense tufts, radiculose at base. Lower leaves 

 small and distant, oval-oblong ; upper crowded in a bud-like coma, not 

 decurrent, erecto-patent, oblongo-lanceolate, canaliculate-concave, margin 

 revolute, with a yellow border of 4 rows of long narrow cells ; nerve stout, 

 brownish, excurrent in a denticulate apiculus ; cells rhombic above, rect- 

 angular at base. Seta tall rufous, hooked at apex ; capsule pendulous, 

 regular turgidly pyriform, brownish-yellow, not contracted below the mouth ; 

 lid mamillar, with a minute papilla. Teeth of peristome orange, red at 

 base, the dorsal line straight, endostome yellow, free, the processes narrow ; 

 cilia 3 short ; spores yellow, very large. Male infl. minute, concealed 

 among the comal leaves ; bracts broadly ovate, apiculate, nerved. 



Hab. — Sandy sea shore, very rare. Fr. 6. 



Among sand dunes at Hunstanton Links, Norfolk {Rev. W. E. Thompson igoz). 



This fine moss was first found in the island of Gothland by Clave in 1863, 

 and in the Aland islands by the energetic collector Bomansson. I have to thank 

 Mr. Dixon for the opportunity of figuring it. 



