HYPNACE.E.] 30 [Amblystegium. 



Roade, Northants {Dixon 1886) ! ! Cherrybank, Perth (Meldrum 1887) ! ! Dinsdale and 

 Northallerton (R. Barnes 1879) ! ! 



Var. y. abbreviatiim Schimp. 



Plants small, with short stems and crowded erect branches ; the leaves 

 more crowded, narrower and more acuminate ; capsule smaller, ovate or 

 oblong. 



Syn.— Schimp. Bry. eur. 1. u. t. 9, p. Synops. 598, 2 ed. 718. De Not. Epilogo 147. HusN. 

 Muse. gall. 363. 



Ambl. Hausmanni De Not. in herb. Schimp. Synops. 2 ed. 720. 



Hab.— Coatham marshes, Yorks. {R. Barnes 1892). 



Like most semi-aquatic mosses, A . riparium varies exceedingly according 

 to locality, and in size from 2—12 inches in length. I have retained two of 

 the best marked varieties, others which have been described being transition 

 forms ; thus Var. /8. passes into elongatum, and in an extreme state into 

 inundafum Schimp. The Var. y. has quite a different habit, and resembles a 

 small Brachythecium. 



13. AMBLYSTEGIUM TRICHOPODIUM [SchuUz) C. H. 



Autoicous ; stem prostrate with slender ascending branches. 

 Leaves remote, patulous, subsquarrose, cordate-lanceolate, nerved 

 half-way, cells 4 — 8 times long as broad. Capsule oblong, curved. 

 (T. LXXXIX, E.) 



SvN. — Hypnttm trichopodium Schultz F1. starg. 324 (1806). Brid. Sp. muse. II, 113 (1812), 

 Mant. 158 (1819). 



Hypnum Schultzii Bland. Muse, exsic. fase. Ill, u. 150. 



Hypnum riparium Var. e. trichopodium Brid. Bry. univ. ii, 415 (1827). Hueben. Muse. 

 germ. 620 (1S33). Boul. Muse. Fr. 77 (1884). 



Amblystegium riparium Var. trichopodium Schimp. Bry. eur. fasc. 55 — 56, t. g (1853), 

 Synops. 598 fi86oK 2 ed. 718. De Not. Epil. 147 (1869). R. Du Buyss. Etud. gen. 

 Amblyst. 19 (1889). Husn. Muse. gall. 363 (1893). 



Autoicous ; pale yellowish-green, stem prostrate, ascending, the 

 branches slender, suberect, with few ramuli. Leaves remote, patulous, 

 lax and somewhat squarrose, cordate-ovate, lanceolate-acuminate, 

 nerved beyond the middle ; cells resembling those of A . riparium, but 

 4 — 8 times as long as broad. Perich. bracts lax, oblong, elongate 

 acuminate, seta very long and slender; capsule oblong horizontal, 

 incurved, leptodermous, fuscous, lid conical. 



Hab. — Watery places, rare. 



Var. /3. KocMi {Br. Sch.) Lindb. 



