DICRANACE2E.] 95 [Pleuridium . 



Pleuridium subnlatum RABENH. Deutsch. Kr. Fl. ii, P. 3, 79 excl. syn. (1848). BR. SCH. 



Bry. eur. fasc. 43 Suppl. t. i excl. syn. (1850) ; Synops. 24 (1860), et 2 ed. 25 (1876). 



BERK. Handb. Br. m. 298 (1863). MILDE Bry. siles. 132 (1869). DE NOT. Epil. Briol. 



ital. 731 (1869). 

 Pleuridium acuminatum LINDB. in Ofv. vet. ak. forh. 1863, p. 406, et 1864, p. 585. FALK 



Beskrif. ofver Skand. muse, cleist. 21. 

 Phascum acuminatum LINDB. in HARTM. Sk. Fl. 9 ed. ii, 78 (1864). 



Paroicous ; pale green ; stems simple, csespitant. Leaves small, 

 ovato-lanceolate ; perich. bracts sometimes subsecund, lanceolate at 

 base, gradually subulate, rather glossy, channelled, minutely serrulate ; 

 nerve broad and flat, continuous, scabrous at back of apex ; cells at base 

 rectangular, empty, upper much narrower, linear. Capsule brownish 

 yellow, spherical or oval, rather truncate at base, with a short straight 

 apiculus. Calyptra covering of capsule. Spores ferruginous. Anthe- 

 ridia naked in the axils of the perich. bracts. 



HAB. Sandy banks, heaths and sides of paths. Common. Fr. 3 4. 



3. PLEURIDIUM ALTERNIFOLIUM (Kaulf.) Rabenh. 



Autoicous ; simple or with longish flagella. Perich. bracts from an 

 oval base, abruptly narrowed into a very long subula, nerve broad and 

 thick. Capsule oval, apiculate. (T. XIV, D.) 



SYN. Phascum subulatum SCHREB. de Phasco obs. 8 (1770) ; Spic. Fl. Lips. 71 (1771). HEDW. 



Stirp. cr. i, 93 t. 35 (1787) ; Sp. muse. 19. ROEHL. Moosg. Deutsch. i, 26 (1800). ROTH 



Fl. germ, iii, P. i, 109 (1800). HOPPE iu STURM Deutsch. Fl. ii, heft 6 (1803). SCHKUHR 



Deutsch. Kr. Gew. P. II, 4, t. i (1810). BRIDEL p.p. LINDB. in HARTM. Sk. Fl. 9 ed. 



ii, 78 (1864). 

 Phascum alternifolium KAULF. in STURM op. cit. heft 15 (1815). BRUCH in Reg. bot. zeit. 



1825, P. i, 273, t. i. HUEBEN. Bry. germ. 4 (1833). BR. SCH. in Mem. soc. mus. 



Strasb. ii, i, t. A (1835) '> Bry. eur. i, 15, t. 7 (1837). DE NOT. Syll. muse. n. 402 (1838). 



WILS. Bry. Brit. 35, t. 37 (1855). HUSN. Mouss. nord-ouest 36 (1873). HOBK. Syn. 



Br. m. 30 (1873). 

 Astomum alternifolium HAMPE in Reg. bot. zeit. 1837, P- 2 ^5- C. MUELL. Synops. i, 



14 (1849). 

 Pleuridium alternif. RABENH. Deutsch. Kr. Fl. ii, P. 3, 79 (1848). BR. SCH. Br. eur. fasc. 



43, Srppl. t. 2 (1850). SCHIMP. Synops. 24 (1860), et 2 ed. 26 (1876). BERK. Handb. 



Br. m. 299 (1863). MILDE Bry. siles. 133 (1869). DE NOT. Epil. Briol. ital. 730 (1869). 



BRID. Mant. muse, et Bry. univ. p.p. 

 Pleuridium subulatum LINDB. in Ofvers. Vet. ak. forh. 1863, p. 408, et 1864, p. 586. FALK 



Beskrif. ofver Skand. muse. cl. 22. 



Autoicous; pale yellowish or dull green, \ i in. high. Stems 

 simple, or with longish small-leaved flagella on the older plants. 

 Leaves ovato-lanceolate, with the nerve vanishing ; perich. bracts from 

 an oval or elliptic base, scarcely glossy, abruptly attenuated into a very 

 long subula, channelled, densely serrulate on the margin and back, 

 and mostly formed of the broad thick nerve which is faint at base ; 

 basal cells rectangular, chlorophyllose, upper much smaller, subquadrate. 

 Capsule immersed, pale brown, spheric-oval, rather longly and obliquely 

 apiculate, with a distinct neck. Calyptra broad, covering half capsule. 



