£72 Mew Plants of the Orders Musci and Hepaiicct, 



wards the apex, subacute, serrated, almost spreading when 

 moist, somewhat carinate, twisted when dry, the margin 

 furnished with an incrassated line of a darker colour than 

 the rest of the leaf, at a short distance from the serratures. 

 Nerve percurrent. The structure of the leaf is dense, 

 except at the base, which embraces the stem with its dilated 

 portion, and is reticulated and of a paler colour. Seta 

 terminal, about one-quarter of an inch long. Capsule 

 erect, ovate-oblong, shining bright yellowish brown, or 

 reddish. Lid nearly as long as the capsule, straight, 

 exactly subulate. Calyptra smooth, not twisted, pale, 

 with a brown apex, entire enveloping the capsule, at length 

 splitting on one side, and becoming dimidiate. Peristome 

 a spongy white membrane, nearly closing the mouth of the 

 capsule, without any trace of teeth in any specimens. 

 The genus Calymperes was originally defined by the 

 orifice of the capsule being closed by a spongy membrane ; 

 and two species were described by my friend, Professor 

 Schwaegrichen. A third species was added by Dr. Hooker, 

 in his Musci Exotici, but as some difference of structure was 

 evident in this plant, which he named C. Gardneri, he found 

 it necessary to modify the generic character, in order to re- 

 ceive it, and his definition in the above-mentioned inimitable 

 work stands thus : " Seta terminalis. Peristomium simplex, 

 e membrana spongiosa horizontal totum os tegente demum 

 medio in dentibus 16 brevibus fissa. Calyptra magna, 

 mitriformis, capsulam involvens, demum lateraliter fissa." 

 To the correctness of this character, as affecting C. Gardneri, 

 I cannot refrain from adding my own testimony, as I ex- 

 amined the plant along with my excellent and acute friend, 

 whose figure and description are in every respect faithful. 

 Schwaegrichen, however, not acquiescing in this arrange- 

 ment, has proposed a new genus in the second part of the 

 second supplement to Hedwig's species Muscorum : this new 

 genus he has named Syrrhopodon, and founded upon no fewer 



