HvfNACE^.] t35 \Heterocladmm. 



Syn. — Hypnum squarrosulum VoiT in Sturm Deutsch. Fl. 2, fasc. 11 (1810), Muse. Herbip. 

 100 (r8i2). 



Hypnum dimorphum Brid. Sp. muse, II, 149 (1812), Mant. 165 (i8ig), Bry. univ. 11,581 

 (1827). FuNCK Moost. t. 49 (1821). Grev. Seot. Cr. Fl. iii, t. 160 (1826). Hook. 

 Tayl. Muse. Brit. 2 ed. i8r, Suppl. t. 5 (1827). Hueben. Muse. germ. 664 (1833). 

 Hook. Br. Fl. ii, 91 (1833). De Not. Syllab. 14 (1838). Wils. Bry. Brit. 368, t. 35 

 (1855). C. MuELL. Synops. ii, 490 (1851). Hobk. Synops. 152 (1873). 



Hypnum HalUri Var. dimorphum Schwaeq. Suppl. I, P. II, 283 (1816). 



Heierocladium dimorphum Br. Sch. Bry. Eur. fase. 49—51, p. 3, t. i {1852). Schimp. 

 Synops. 494 (i860), 2 ed. 606. Berk. Handb. 134 (1863). Milde Bry. Siles. 269 

 (1869). De Not. Epilogo 237 (1869). Hobk. Synops. 2 ed. 191 (1884). ' Lesq. James 

 Moss. N. Amer. 321 (1884). 



Heierocladium. squarrosulum Lindb. Muse. Scand. 37 (1879). Boulay Muse. Fr. 159 

 (1884). HusN. Muse. gall. 306, t. 87 (1892). Limpr. in Rabenh. D. kr. fl. Laubm. ii, 

 816 (1895). Dix. James. Stud. Handb. 379 (1896). 



Dioicous; in bright or yellowish green spreading tufts. Stem 

 creeping, with long rooting stolons, the leaves cordate decurrent, 

 acuminate, squarrosely recurved from middle, finely serrulate, papillose 

 on both sides, nerves short and indistinct ; branch leaves small, ovate, 

 erecto-patent when wet, imbricated when dry, serrated ; cells lineal in 

 middle, quadrate at margin. Perich. bracts sheathing broadly lanceolate, 

 recurved, nerveless ; seta purple. Capsule cernuous, oblong, lid conical ; 

 obtuse. 



Hab. — On earth, and rocks in alpine localities. Fr. rare, ii — 2. 



Near summit of Ben Lawers (Arnott) ! ! Clova (Dr. Stirton 1863). Glen Dole {Fergusson 

 1868) I I 



2. HETEROCLADIUM HETEROPTERUM {Bruch) Br. Sch. 



Dioicous ; in dense procumbent tufts ; branches subfasciculate ; 

 leaves obliquely imbricated, subsecund, ovate-acuminate, serrated, with 

 two short nerves. Capsule elliptic-oblong, cernuous, lid shortly rostrate. 

 (T. CIX, D.) 



Syn. — Pterogonium heteropterum Bruch in lit. Schwaeo. Suppl. Ill, P. I, t. 210 b (1827). 



Hypnum catenulatum (non Schwaeqr.) Hook. Tayl. Muse. Brit. 96, t. 24 (1818). Brid. 

 Br, univ. ii, 450 p.p. (1827). 



Hypnum heteropterum Spruce Muse. Pyren, No. 56 (1847) ^t '" Ann. & Mag. nat. hist. 

 1849, p. 272. C. MpELL. Synops. ii, 437 (1851). Wils. Bry. Brit. 369 (1855). 



Heierocladium heteropterum Br. Sch. Bry. Eur. fase. 49— S'. P- 4. '• 2 (1852). Schimp. 

 Synops. 495 (i860), 2 ed. 607. Berk. Handb. 134 (1863). Milde Bry. Siles. 269 

 (1869). De Not. Epilogo 238 (1869). Hobk. Synops. 2 ed. 192 (1884). BouL. Muse. 

 Fr. 160 (1884). HusN. Muse. Gall. 307, t. 87 (1892). Dix. James. Stud. Handb. 378 

 (1896). Limpr. in Rabenh. D. kr. fl. Laubm. ii, 813 (1895). 



Leptohymenium Ahnfeltii Aongstr. in Hartm. Skand. fl. 10 ed. (187 1). 



