HYPNACE^E.] 90 [Hypnum. 



The H. litoreum DE NOT. has generally been regarded as a synonym of 

 H. curvisetum, but the Marquis Bottini had detected the difference, and 

 Limpricht with his usual minuteness clearly established the species. Mitten 

 also had in the meantime detected a species which he named scabrellum, 

 and he having kindly sent me an original specimen from De Notaris 

 (Cagliari, 1835), I was able to confirm Limpricht's determination. There is 

 one unusual point about it, the seta is sometimes found to be quite smooth, 

 and thus somewhat lowers the importance of the character derived from a 

 smooth or rough seta, still I look upon it as quite distinct fromH.Algirianum. 



20. HYPNITM ALGIRIANUM Brid. 



Autoicous ; stem creeping with short erect branches. Leaves 

 erecto-patent, lanceolate, longly acuminate, entire, nerve vanishingbelow 

 apex. Capsule longish-ovate, seta smooth, lid rostrate. (T. CI, E.) 



SYN. Pterigynandrum Algirianum BRID. Muse. rec. II, P. I, 65, t. VI, f. 7 (1798). P. BEAUV. 

 Prodr. 86 (1805). 



Hypnum tenellum DICKS. PI. crypt. Fasc. IV, p. 16, t. n, f. 12 (1801). TURN. Muse. hib. 

 170 (1804). SMITH Fl. Brit. 1308 (1804), Eng. Bot. t. 1859. HOOK. TAYL. Muse. Brit. 

 93 (1818). SCHWAEG Suppl. II, P. I, 161, t. 144 (1823). GRAY Nat, arr. i, 754 (1821). 

 HOOK. Fl. Scot. P. II, 142 (1821). HUEBEN. Muse. germ. 676 (1833). DE NOT. Syllab. 

 9(1838). RABENH. D. kr. fl. II, S. 3, 286(1848). C. MUELL. Synops. ii, 396 (1848). 

 WILS. Bry. brit. 357 (1855). BERK. Handb. 96 (1863). HOBK. Synops. 157 (1873). 



Hypnum cxiguum BLAND. Cr. exsicc. Fasc. II, 93 (1805). 



Hypnum Algirianum BRID. Spec. muse. II, 162 (1812), Mant. 168 (1819), Bry. univ. ii, 

 592 (1827). SCHWAEG. Suppl. I, P. II, 240 (1816). FUNCK Moostasch. 61, t. 43 (1821). 

 BOULAY Muse. Fr. 99 (1884). 



Rhynchostcgium tenellum B*. SCH. Bry. eur. fasc. 49-51, p. 5, t. 2 (1852). SCHIMP. 

 Synops. 565 (1860), 2 ed. 680. HOBK. Synops. 2 ed. 207 (1884). DE NOT. Epilogo 

 75 (1869). 



Rhynchosteglum Algirianum LINDB. Bidr. t. Mossorn. Syn. 29 (1863). 



Eurhynchium tenellum MILDE Bry. siles. 308 (1869). HUSN. Muse. gall. 342, t. 98 (1893). 

 Dix. JAMES. Stud. Handb. 421 (1896). 



Rhyncliostegiella tcnella LIMPR. in RABEN. D. kr. fl. Laubm. iii, 209 (1897). 



Autoicous; in silky yellowish-green interwoven patches. Stem 

 slender, creeping, with close erect short slender branches. Leaves 

 equal, erecto-patent lax, the upper often secund, narrowly lanceolate- 

 acuminate, with long fine points entire, nerve extended nearly to point ; 

 cells 1015 times long as broad, all basal quadrate-rectangular. 

 Perich. bracts erect, inner twice length of vaginula, nerveless, longish 

 ovate, suddenly long-pointed. Seta red, slender, arcuate at top, 

 smooth ; capsule horizontal, longish-ovate, with a short neck, reddish- 

 brown, lid yellow, conic with an oblique beak, annulus broad of two 



