94 DICRANACEiE. 



large, distinct, brown or hyaline auricles, cells above shortly 

 rhomboid or oval. Capsules often aggregated, thick-walled, dark 

 brown, furrowed. 



Var. jS. uliginosus Ren. Tall and slender with fewer 

 radicles, and less crowded leaves, which are more elongated, with 

 a narrower nerve. 



Var. y. paradoxus CC. paradoxus Wils.). Shorter ; dull 

 green ; stems sparingly radiculose. Leaves very short, with 

 much broader somewhat obtuse points, nerve narrow, vanishing in 

 apex. 



Hab. On turfy ground in woods, and on rocks, common. The var. j8 in 

 marshes ; the var. 7 on rocks and soil usually in sub-alpine districts. Fr. winter and 

 spring. 



The commonest and most variable species, and difficult to define, though as a 

 rule fairly easy of determination, the leaf-base, although variable, having a facies of 

 its own, perhaps chiefly arising from its narrow outline, with the nerve mostly 

 narrower than in the allied species, and usually with distinct auricles. These are, 

 however, occasionally almost obsolete, in which case we have a transition to the 

 subspec. pyriformis. The marsh form usually in English books given as var. 

 paludosus Schp. would appear to be the same thing as the var. uliginosus Ren. (Rev. 

 Bry. 1887, p. 81) and should be so cited. The var. paradoxus is in most works 

 treated — though often doubtfully — as a species ; there is little doubt that Braithwaite 

 is right in finally sinking it to varietal rank. Many other forms might be described ; 

 one, a tall, robust plant, with leaves regularly falcato-secund, not altered when dry, 

 is described by Boulay as var. major ; this I have gathered in N. Wales. 



The most frequent form has usually a bright reddish brown tint in the interior of 

 the tufts, which is hardly found in the allied species. 



* Campylopus pyriformis Brid. (Dicranum pyriforme 

 Schultz ; C. turfaceus B. & S., Schp. Syn.) (Tab. XVI. F.). 



In short dense wide patches, y£-r inch high, yellowish or olive 

 green above, pale or reddish below ; stems slender, radiculose 

 only at base. Upper leaves longest, from an ovate-lanceolate 

 base, i-jj length of leaf, quickly narrowed to a setaceous 

 channelled subula ; nerve §-§ width of base, excurrent in a short 

 denticulate point ; in section similar to C . flexuosus ; basal cells 

 rectangular, lax, hyaline, narrower at margin, the angular few, 

 hardly distinct ; the cells as they ascend the leaf base become 

 smaller and shorter, at the shoulder becoming chlorophyllose, 

 shortly rhomboid and oblique or sub-rectangular, and continuing 

 so, but smaller, to the summit. Calyptra fringed at the base or 

 rarely entire. Capsule smaller, elliptical, cylindrical when dry 

 and empty. 



Hab. Peaty moorlands, heaths, etc. , common. Fr. spring and summer. 



