P HAS CUM. 



the leaves of this plant are patent or erect, whilst in ours 

 they are as connivent as in a. Even in the common appear- 

 ance of the species the serratures at the points of the leaves 

 are subject to considerable variation ; but when quite entire, 

 the plant may be known from P. cuspidatum by its much 

 more convex leaves, and by their more rigid texture as well 

 as glossy surface. 



P, cuspidatum ; leaves ovato-acuminate, erect, their nerve 

 reaching to the point. (TAB. V.) 

 a. apiculatum,', leaves apiculate. 



P. cuspidatum. Schreb. de Phase, t. I./. 1-5. Turn. Muse. Hlb. 

 p. 3. Engl Dot. t. 2025. Moug. et Nestl n. 307- P. Schreberianum. 

 Dicks. Engl. Bot. t. 2026. P. curvisetum. Dicks. Engl, Bot. t, 2259. 

 Dill. Muse, t. 32. /. 11. 



/3. piliferum ; leaves hair-pointed. 



P. piliferum. Schreb. de Phase, t. I./, 6-10, Engl. Bot. t, 1888. 

 HAB. Hedges and moist banks. 



We have here been under the necessity of joining to-< 

 gether four species of preceding authors, P. cuspidatum, 

 P. curvisetum, P. Schreberianum, and P, piliferum ; and 

 probably we should include P. datum Bridel, and P. car- 

 n'wlicum Schvvaegr. ; but having no specimens of these we 

 are not enabled to form a decided opinion. P. curvisetum 

 we conceive to be merely an accidental variety, having fre- 

 quently observed in the same patch individuals with curved 

 and straight fruitstalks. P. Schreberianum and P. pilife- 

 rum seem to us to owe their dissimilarities to the soil on 

 which they grow, the former in rich, the latter in barren 

 pastures. The leaves of P. cuspidatum have almost always 

 a projecting hair-like point : but this is most remarkable in 

 the variety called piliferum, which when growing on bar- 

 ren plains near Yarmouth looks quite hoary, like Anictan- 

 gin,m ciliatum, and has the leaves singularly short and ob- 

 tuse. Mohr, whose authority is of the highest importance, 

 retains it as a distinct species, but makes its character to 

 depend on what we do not find to be constant, viz, the 

 curved fruitstalk, 



-t- -H Fruitstalk exserted. 

 . P. bry aides; leaves ovate, apiculate; capsule elliptical. 



(TAB. V.) 



P. bryoides. Dicks. PL Crypt, fasc. 4. t. 10. /. 3. Engl Bot. t. 1280. 



HAB. Banks and fields. 



This might at first be mistaken for a small variety 

 of Gymnostomum truncatum, or rather of that appearance 



