52 MUSCI-ACROCARPI-PERISTOxMI. [Zygodon. 



Inflated below. (Muse. Brit. t. 2.) — Named from funis, a cord; 

 because in dry weather the seta of the common species becomes 

 twisted, and indeed constitutes an excellent hygrometer. 



1. F. hygrometrica, Hedw. (hygrometric Cord-Moss); leaves 

 very concave ovate apiculated entire, nerve excurrent, seta 

 curved flexuose. Hedw. Sp. Muse. p. 172. Turn. Muse. Hib. 

 p. 105. Hobs. Br. Mosses, v. 1. n. 52. Drum. Muse. Scot. v. 1. 

 n. 54. Schwaegr. Suppl. v. I. P. II. p. 75. Muse. Brit. ed. 2. 

 p. 121. t. 20. — Mnium hygrometricum, Linn. Sp. PL p. 1575. 

 — Bryum hygrom., E. Bot. t. 342. 



Old walls and buildings, heaths, moors, and in woods, particularly 

 where any thing has been burnt. Hence it is called La Charbonniere 

 in France. Fr. May.— Mr. Wilson observes that a red corrugated 

 border to the mouth of the capsule is constant and peculiar to this 

 species. 



2. F. MuhlenUrgii, Turn. (Dr. Muhlenberg s Cord-Moss); 

 stems short, leaves concave ovate suddenly acuminated serrated, 

 the nerve disappearing below the point, seta straight. Turn, 

 in Ann. of Bot. v. 2. p. 198. E. Bot. t. 1498. Schwaegr. Suppl. 

 v. I. P. II. p. 78. t. 68. Muse. Brit. ed. 2. p. 122. t. 20. 



Subalpine countries, among rocks and in a limestone soil : most fre- 

 quent in the south of England and Ireland. Fr. Apr. May. 



3. F. hibernica, Hook. (Irish Cord-Moss); stems elongated, 

 leaves plane ovato-lanceolate gradually acuminated serrated, the 

 nerve disappearing below the point, seta straight. Hook, in Fl. 

 Lond. cum Ic. Muse. Brit. ed. 2. p. 122. t. 20.— F. Muhlen- 

 bergii, Mohr. — Funch, Deutschl. Moose, t. 27. n. 2. 



On the roof of a thatched cottage at Blarney, near Cork, Ireland ; 



Mr. James Drummond. Fr. ?— Although this has longer stems 



and setce, more distantly placed, plane and more elongated and gradually 

 acuminated leaves ; yet it may be only a var. of the preceding, depend- 

 ing upon the place of growth for its characters. 



25. Zygodon. Hook, and Taylor. Yoke-Moss. 



Seta terminal. Peristome double : the outer of 16 teeth ap- 

 proaching in pairs ; the inner of § or 16 cilia lying horizontally. 

 Calyptra dimidiate, smooth. (Muse. Brit. t. 3.) — Name, £vyoc, 

 a yoke, and obuv, a tooth ; from the teeth being placed in pairs. 



1. Z. conoideus, Hook, and Taylor, (lesser Yoke-Moss); leaves 

 acute, cilia 8. Muse. Brit. ed. 1. p. 74. ed. 2. p. 123. t. 21. 

 Schwaegr. Suppl. v. 2. t. 136. Hobs. Br. Mosses, v. 1. n. 33.— 

 Amphidium pulvinatum, Sturm, Deutschl. Fl. {with a figure). 

 Funck, Deutschl. Moose, t. 22. n. 1. — Gagea compacta, Raddi — 

 Mnium conoideum, Fl. Brit. p. 1345. E. Bot. t. 1239. — Bryum 

 conoideum, Dicks. Cr. Fasc. 4. t. 11./. 2. Turn. Muse. Hib. 

 p. 1 12. — Gymnocephalus conoides, Schwaegr. Suppl. v. I. P. II. 

 p. 87. 



On trees, rare: in the West of Scotland, particularly at Inverary, 

 where it was discovered by Mr. Dickson. Orange Grove, near Belfast, 



