50 NEW SPECIES OF MUSCI. 



aequali, erecta. — Accompanied by Didymodon purpureus, 



H. et T. on, Pichincha, at an altitude of 12,000 feet; 



9th of October, 1827, Prof. William Jameson, (Dr. Gre- 



ville's Herbarium). 



Tufts very pale green, about half an inch high. Stems 

 slender, suddenly expanding into a terminal pericbaetium, 

 from beneath which a pair of more slender annotinous shoots 

 arise. Leaves straight, rigid, and acuminated. Setae slender, 

 Peristome of sixteen pale, twisted, filiform teeth, divided 

 down to their bases. The leaves are never patenti-recurved 

 as in B./aZte 1 , Hedw., which, too, is destitute of any notable 

 perichaetium. 



5. B. erythrodonta ,• caule laxe caespitoso, erecto, ramoso ; 

 foliis imbricatis, erecto-patentibus, subrecurvis, coneavis, 

 elongatis, oblongo-ovatis, acuminatis, longius apiculatis, 

 margine infero recurvis, supero serrulatis, nervo percur- 

 rente; capsula cylindraceo-oblonga, erecta, aequali, seta 

 abbreviata. — On Pichincha, near Quito, Prof. William 

 Jameson, (Dr. Greville's Herbarium). 



Stems about 1 inch long, pale yellowish-olive. Branches 

 fertile. Leaves somewhat fascicled, terminated by a long 

 setaceous apiculus, consisting almost entirely of the produced 

 nerve. Setae short, scarcely overtopping the shoots, straw- 

 coloured, twisted when dry. Perichaetial leaves similar to 

 the cauline. Peristome blood-red, of short filiform twisted 

 teeth. This species has shorter setae than any described 

 Barbula. Its large leaves and wide capsules, likewise give 

 it a peculiar aspect. 



6. B. torquata ; caule ceespitoso, brevi, erecto, subramoso ; 

 foliis confertis, erecto-patentibus, lanceolatis, acuminatis, 

 integerrimis, margine reflexis, nervo percurrente, siccitate 

 spiraliter atque arete convolutis ; capsula erecta, subaequali, 

 oblongo-ovata, operculo elongate conico. — Swan Rivei, 

 Mr. James Drummond. 



Stems about 3 lines high, yellowish-green above, brownish- 

 yellow below. Leaves straight, the perichaetial similar to 

 the cauline. Setae pale red, slender, subfiexuose. Lid an 



