TORTULACE.E.; 1 228 [Mollitt. 



PLEUROCiLZETE SftUARROSA (Brid.} Lindb. 



Dioicous ; laxly tufted. Leaves squarrose from a broad sheathing 

 base, lanceolate, serrate at point. Setae lateral, caps, subcylindric. 

 (T. XXXIII, D.) 



SYN. Barbula squarrosa BRID. Bry. univ. i, 833 (1827). BRUCH SCHIMP. Bry. eur. f. 31, 

 Suppl. t. i (1846). C. MUELL. Synops. i, 601 (1849). SCHIMP. Synops. 180 (1860), 

 2 ed. 221. BERTOL. Fl. ital. cr. 207 (1858). MILDE Bry. siles. 124 (1869). HUSN. 

 mouss. nord-ouest 84 (1873). JURATZ. Laubm. oesterr.-ung. 124 (1882). LESQ. JAMES 

 Mosses N. Amer. 130 (1884). 



Tortilla squarrosa DE NOT. in Mem. ac. Torin. xl, 321 (1838), Syllab. 180 (1838), Muse, 

 ital. I, 61, t. 31 (1862). SPRUCE in HOOK.' L. journ. iv, 193 (1845), et Ann. Mag. n. h. 

 2 ser. iii, 377 (1849). WILS. Bry. brit. 126, t. 33 (1855). MITT. Journ. Lin. soc. i, 

 Suppl. 27 (1859). BERK. Handb. br. m. 255 (1863). HOBK. Syn. br. m. 74 (1873). 



Pleurochate squarrosa LINDB. de Tort. 253 (1864). DE NOT. Epil. bri. ital. 560 (1869). 



Dioicous ; laxly and irregularly caespitose, tufts yellow-green above, 

 fuscescent at base, fragile, not tomentose. Stem simple or dichoto- 

 mous. Leaves comant at apex of stem, from a broad sheathing base, 

 recurvo- and incurvo-squarrose, flaccid and cirrato-crispate when dry, 

 elongate-lanceolate, subundulate at margin, serrate above, nerve thick, 

 vanishing at apex or excurrent ; areolation minute, chlorophyllose and 

 rectangular above and at mid base, very finely papillose, at sides of base 

 thin lax and hyaline. Perichsetia numerous, lateral, the bracts shorter, 

 semivaginant, reflexed : seta red below, yellowish above, calyptra very 

 narrow, fugacious, caps, erect, cylindraceous, subarcuate, deep rufous, 

 annulus narrow of a single series of cells, lid conico-subulate, per. pale 

 purple, twice convolute, fugacious, teeth very slender, short-jointed, 

 strongly papillose. 

 HAB. Bare stony ground on the south coast and in chalky fields. Fr. 5 6. 



Beeding chalk-pit, Sussex (Borrer). Shoreham beach (Wilson 1837) ' ' Woolsonbury 

 hill (Mitten). Between Brighton and Newhaven (Davics 1868) ! ! Tothill, Plymstock, 

 St. Minver and Berryhead (Holmes) ! ! Minehead, Somerset (Boswell 1867) ! ! Holton, 

 Oxford (Boswell) \ \ Portmarnock, Dublin (Taylor). Arklow, Wicklow (Moore). Win- 

 chelsea (Holmes). Ballard down, Swanage (Holmes). Lathkill dale, Derbyshire 

 (Whitchcad 1882) ! ! Holton stone pits, Oxford (Boswell) ! ! 



For the beautiful fertile specimen figured, I am indebted to my friend 

 Mr. Boswell, in this country it is always sterile. There is something in the 

 look of the plant very different from all our other species and approaching 

 that of Leptodontium. 



7. MOLLIA SCHRANK. 



Baiers. Fl. ii, 455 (1789). 



Plants dwarf or tall, caespitose or pulvinate, dichotomously 

 branched. Leaves lanceolate, papillose, bright or dark green, usually 

 crisped or contorted when dry, the areolation lax and hyaline at base, 

 minute obscure and chlorophyllose above. Capsule in a few cases 



