NEW SPECIES OF MUSCI. 49 



incurved and their margins inflexed ; their structure dense, 

 with minute cells. Setae about 1 inch long, terminal. 

 Capsule slightly curved to one side. Peristome short, pale, 

 twisted. The Irish Barbula cylindrica (Zygotrichia, Flor. 

 Hib.), is its nearest ally, in which, however, the leaves are 

 more crowded, quite entire and acuminated. 



2. B. ineegualifolia ; caule brevi, gracili, simplici ; foliis erecto- 

 patentibus, subimbricatis, margine reflexis, inferioribus 

 minoribus ovatis superioribus lanceolatis, omnibus obtusis, 

 integerrimis, nervo valido percurrente ; pericheetialibus 

 majoribus, erectis, elongatis ; capsula erecta, ovato-cylin- 

 dracea, leviter curvula. — On Pichincha, near Quito, Prof. 

 William Jameson, (Dr. Greville's Herbarium.) 



Stems 1-2 lines Tiigh, very slender. Lower leaves very 

 small, the pericheetial the largest, forming a conspicuous 

 cylindrical sheath to the base of the seta. Capsule large 

 compared with the slender stems, slightly curved on one 

 side. Peristome of filiform, pale-red, twisted teeth, divided 

 to their bases. In Barbula revoluta, Mohr, the stems are 

 longer, and are branched, the leaves more crowded and 

 acute, and the capsule far shorter. 



3. B. replicata ; caule simplici, erecto, subceespitoso ! foliis 

 laxe imbricatis erecto-patentibus, subrecurvis, lanceolato- 

 ovatis, integerrimis, obtusis, nervo excurrente apiculatis, 

 margine toto reflexis ; capsula elongate ovata, erecta ; 

 operculo subulato. — On walls, near Quito, Prof. William 

 Jameson, (Dr. Greville's Herbarium). 



Tufts loose, pale green. Stems nearly half an inch high. 

 Leaves with their margins reflexed from the base to the 

 apiculus. Allied to the preceding ; the shoots are longer and 

 thicker, their colour a paler green, the leaves with a decided 

 apiculus and the cylindrical perichaetia are wanting. 



4. B. rectifolia ; caule laxe caespitoso, erecto, surculis binis 

 annotinis ramoso ; foliis erectiusculis, imbricatis, ovato-lan- 

 ceolatis, acuminatis, integerrimis, margine infero reflexis, 

 supero planiusculis, nervo percurrente, perichaetialibus 

 majoribus, longius acuminatis ; capsula elongate ovata, 

 vol. v. e 



