SUPPLEMENT.] 2 3 



EPHEMERUM STELLATUM PMttb. 



Dioicous; plants minute, simple and scattered. Leaves numerous, 

 spreading from an oval base, linear acute, entire, cells at base large 

 hexagonal, with a round swelling on both surfaces. Capsules oval, pointed. 

 (T. CXXV, F.) 



Sn.-Ephemtrum stellatum PHILIBERT in Rev. Bryol. 1879, p. 62. BOULAY Muse. Fr. 577 (1884). 

 HUSN. Muse. gall. 208, L 56 (1884). LIMPR. in Rabenh. D. kr. fl. Laubm. in, 634 (1901).. 

 NICHOLSON in Journ. Bot. 1902, p. 337, t. 442 (1902). 



Dioicous ; the plants very small, simple and isolated as in E. serratum^ 

 Leaves about 20, squarrosely divergent, stiff, plane and straight, oval at 

 base, suddenly linear, acute, nerveless, entire ; cells at base hexagonal,, 

 with a thick round swelling, convex on both surfaces and filled with opaque 

 granules, the upper much longer than broad. Capsule oval or globose^ 

 orange-brown, pointed at apex, rather smaller than that of E. serratum. 

 Calyptracampanulate, covering \ of capsule, with 2 3 slits at base ; spores, 

 smooth, smaller than those of E. serratum. 

 HAB. Damp clay soil, very rare. Fr. 10 n. 



Bedgbury woods, Kent, with E. serratum 1901, and Crowborough, Sussex, 1902 (W. E^ 

 Nicholson, Esq.). 



This elegant little moss is quite distinct from E. serratum and of much firmer 

 substance, the leaves also are of a different shape. The large circular swelling on 

 a number of the basal cells is most unusual and a striking feature of the plant. 

 Bridel has a Phasum stellatum sent by Green from Shrewsbury Mant. muse. 4, 

 et Bry. univ. i, 24 described as having a stout nerve, and probably a form of 

 P. acaulon. 



POTTIA COMMUTATA Limfr. 



Paroicous ; leaves longish oval, margin recurved narrowly above, nerve 

 excurrent in a short recurved point, cells thickly papillose. Capsule 

 cernuous, longish oval, calyptra papillose, lid obtusely conic with a small 

 boss ; peristome yellowish, the teeth very short, obtuse, of 2 3 joints. 

 (T. CXXV, B.) 



SYN. Pottia commutata LIMPR. in RABEN. D. kr. fl. Laubm. i, 537, fig. 160 (1888). 



Paroicous ; resembling P. Starkei, growing gregariously, light green. 

 Upper leaves longish oval with a short point, margin narrowly recurved 

 above, nerve orange, excurrent in a short recurved point ; cells above 

 hexagonal, thickly papillose, below rectangular and smooth. Perich. bracts 

 elliptic, seta yellow curved. Capsule cernuous, longish oval, castaneous, 

 slightly plicate when the lid has fallen ; calyptra yellowish papillose, lid 

 obtusely conic with a blunt central boss ; peristome pale yellow, the teeth 

 very short, and of 23 joints, papillose and often perforated ; spores 

 strongly papillose. 



