96 MUSCI-PLEUROCARPI-PERISTOMI. [Hypnum. 



a?id t. 41. /. 53. — (3. compression; stems slender compressed, 

 leaves falcato-secund. H. compressum, Linn. Mant. v. 2. p. 310. 

 — Dill. Muse. t. 36. f. 2. — y. tenue ; leaves very slightly curved 

 narrow-lanceolate quite entire. H. polyanthos, E. Bot. t. 1664. 

 Turn. Muse. Hib. p. 137. {iiot of this work, nor Leskea polyan- 

 thos, Hedw.) 



Banks and trunks of trees, extremely common. (■>. particularly 

 abundant in shady woods, y. mostly on trees. Fr. Oct. — One of the 

 most sportive of all mosses ; but the best-marked vars. are defined above. 

 The var. y. is however the most remarkable and has often been mistaken 

 for Leskea polyanthos of Hedw. It is also very nearly allied to H. in- 

 curvatum, Schrader and Schwaegr., which has a shorter and more drooping 

 capsule. 



71. H. Crista-castrensis, Linn. (Ostrich-plume Feather- Moss); 

 stems closely pectinated, leaves falcato-secund ovato-lanceolate 

 acuminate serrulate striated faintly 2-nerved at the base, cap- 

 sule oblongo-ovate curved cernuous, lid conical. Linn. Sp. PI. 

 p. 1591. Hedw. Sp. Muse. t. 76. f. 1—4. E. Bot. t. 2108. 

 Hobs. Br. Mosses, v. 2. n. 73. Drum. Muse. Scot. v. 1 . n. 95. 

 Schwaegr. Suppl.v. 1. P. IL. p. 293. Muse. Brit. ed. 2. p. 190. 

 t.27. 



Woods in Yorkshire, Mr. Backhouse and Rev. James Dalton* Not 

 unfrequent in the mountain-woods of Scotland, and upon exposed 

 rocks at a considerable elevation. Rare in fr. The Rev. Colin Smith 

 finds it in that state abundantly, at Inverary, in Nov.? — The most elegant 

 of all the Hypna, well marked by its large and beautifully feathery stems. 

 In Clova, it grows along with Linncea borealis, which is its common 

 associate in the woods of Switzerland. 



72. H. molluscum, Hedw. (plumy-crested Feather-moss); 

 stems pectinated, leaves falcato-secund cordate much acumina- 

 ted serrated scarcely striated faintly 2-nerved at the base, cap- 

 sule oblongo-ovate curved cernuous, lid conical. Hedw. St. 

 Cr. v. 4. t. 22. Turn. Muse. Hib. p. 198. Fl. Brit. p. 1335. 

 E. Bot. t. 1327. Hobs. Br. Mosses, v.l.n. 96. Drum. Muse. Scot. 

 v. 1. n. 96. Schwaegr. v. 1. P. II. p. 293. Muse. Brit. ed. 2. 



p. 190./. 27 '.—Dill. Muse. t. 36./. 20 H. Crista-castrensis, 



Dicks. 



On the ground, in woods and among stones. Fr. Nov. — This has 

 been taken, even by some able British Botanists, for the preceding ; but 

 not by Dilienius, as Sir J. E. Smith supposed ; his figures A. and B. being 

 truly our present plant. 



