100 MR. G. E. HUNT ON BRITISH MOSSES. 



upper part ; cells in the upper part of the leaf opaque, qua- 

 drangular, in the lower portion elongated, subdiaphanous ; 

 nerve thick, papillose, extending almost to the apex. Male 

 flowers gemmiform, on very short axillary branches which 

 usually spring from an innovation ; perigonial leaves ovate, 

 suddenly acuminated, nerved to the apex. 



I have not seen female flowers or fruit. 



Hab. Rocks at Blackhall, near Banchory, where it was 

 discovered by Mr. John Sim. 



Entosthodon minimum, Hunt, sp. nov. 



Annual, dioicous ; stems gregarious, erect, an eighth to 

 a quarter of an inch high ; lower leaves obovate, margin 

 reflexed, nerve thin, vanishing below the apex ; upper 

 leaves oblong, suberect, subcanaliculate, margin recurved, 

 crenulate in the upper part, nerve rather strong, produced 

 almost to the apex ; areolae large, those of the lower part 

 of the leaf elongate-hexagonal, of the upper part shorter. 



Male plants with the flowers terminal, antheridia 6-8, 

 sessile, without paraphyses, perigonial leaves usually like 

 the upper stem-leaves, but occasionally (together with all 

 the stem-leaves) obovate, when they contain clavate, 

 slightly swollen paraphyses, without antheridia. 



Female plants with the flowers both terminal and in the 

 axils of the upper stem-leaves; archegonia with a few rather 

 long filiform paraphyses ; no distinct perichsetial leaves ; 

 vaginula short, cylindrical ; seta an eighth to a quarter of 

 an inch long, erect ; capsule with a distinct neck, smooth, 

 when dry obconical, widest at the mouth ; operculum coni- 

 cal acute. Calyptra, when young, brown, very narrow, 

 conical, cleft on one side for a third of its length, cells 

 spirally arranged; peristome half immersed, teeth six- 

 teen, very slender, linear-subulate, transverse articulations 

 distant. 



Fruit matures in August. 



