HvPNACEiE.] go [Hypmim. 



The H. litoreum De Not. has generally been regarded as a synonym of 

 H. cunisetum, 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 iiomH.Algirianum. 



20. HYPNUM ALGIRIANUM Brid. 



Autoicous ; stem creeping with short erect branches. Leaves 

 erecto-patent, lanceolate, longly acuminate, entire, nerve vanishing belov(^ 

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



Syn. — Pterlgynandrum 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. 11, f. 12 (1801). Turn. Muse. hib. 

 170 (1804). Smith F1. 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. FI. 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 exiguum 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 (1884J. 



Rhynchostegium tenellum Br. Sch. Bry. eur. fasc. 49-51, p. 5, t. 2 (1852). Schimp. 

 Synops. 565 (i860), 2 ed. 680. Hobk. Synops. 2 ed. 207 (1884). De Not. Epilogo 

 75 (i86g). 



Rhynchostegium 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). 



Rhynchostegiella tenella 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 10 — 15 times long as broad, all basal quadrato-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 



