GYMNOSTOMUM. 79 



capsule without peristome, but provided with a horizontal mem- 

 brane, which can only be well seen when the plant is fresh. 

 Calyptra dimidiato-mitriform. 



QiIdipodium GriffithianuMj Schwsegr. [GriffitJiian Club- 

 stalked Moss.) Leaves large, roundish^ obovate, strongly re- 

 ticulated aud succulent. Stem scarcely any. Seta thick 

 and fleshy, upwards especially, where it swells into the oval, 

 nearly erect capsule. Lid hemispherical. — Eng. Fl. p, 6. 



rirst found on Ingleborough in Yorkshire, and subse- 

 quently discovered on Ben Lawers, Ben Nevis, Ben Crua- 

 chan, Clova, and other mountains of Scotland. It has also 

 been found in Norway. Er. August. This is an interesting 

 Moss, and further details of its description and appearance 

 are embodied in the Engl. Tl. and Muscologia Britannica. 



GYMNOSTOMUM, Hedw. (Beaedless Moss.) 



The Greek words of which the name of this genus is 

 composed, refer to the " naked mouth," which is the dis- 

 tinguisliing character of this and the other genera in the 

 subsection. 



It is undoubtedly in many instances a very artificial genus, 



