32 MUSCI-ACROCARPI-PERISTOMI. [Trichostomum. 



15. D. cylindricus, (cylindrical Didymodon); stem short 

 simple, leaves from a broad base setaceo-capillary spreading on all 

 sides flexuose, capsule cylindrical inclined, lid conical blunt. — 

 Trichostomum cylindr. Hedw. Sp. Muse. p. 107. t. 24. f. 7 — 13. 

 Wahl. Lapp. p. 332.— Dicranum cylindricum, Web. et Mohr. 



Ditch bank, near Orange Grove, Belfast, Mr. Drummond. Fr. 

 Nov. — For the addition of this species likewise to the British list, 

 we are indebted to Mr. Drummond. It is entirely distinct from any 

 other of this country : and bears fruit very sparingly in the station just 

 mentioned. 



17. Trichostomum. Hedw. Fringe-Moss. 



Seta terminal. Peristome single, of 16 equal teeth divided to 

 the base, or 32 placed together in pairs. Calyptra mitriform. 

 (Muse, Brit. t. 2.) — Named from Sg/g, a hair, and (fro^x, the 

 mouth, on account of the slender capillary teeth at the mouth 

 of the capsule. 



* Fruitstalks curved. 



1. T. patens, Schwaegr. (spreading Fringe-Moss); stems 

 elongated procumbent, leaves lanceolate acuminate carinated 

 their margins recurved, fruitstalks curved, capsule oblongo- 

 ovate furrowed, lid rostrate. Schwaegr. Suppl. v. I. p. 152. 

 t. 37. Drum. Muse. Scot. v. 1. n. 43. Muse. Brit. ed. 2. p. 104. 

 t. 19. (excl. var. (3.) — Dicranum patens, Fl. Brit. p. 1213. 

 E. Bot. t. 1900. — Bryum patens, Dicks. Or. Fasc. 4. t. 4. f. 8. 

 Dill. Muse. t. 17. /. 30. 



Rocks in mountainous regions, frequent. Fr. Summer. — The upper 

 leaves are sometimes slightly piliferous at the points. 



2. T. ? fundle, Schwaegr. (cord-like Fringe-Moss); stems 

 elongated ascending, leaves lanceolate acuminate carinated 

 their margins recurved hair-pointed, fruitstalks curved, capsule 

 oblongo-ovate furrowed, lid rostrate, teeth often cleft only 

 at the point. Schwaegr. Suppl. v. 1. p. 150. t. 37. — T. patens, 

 /S. Muse. Brit. ed. 2. p. 104. 



Rocks, rather scarce. Argyleshire, Capt. Carmichael. Clova, Mr. T. 

 Drummond. Near Plymouth, and near Penzance, Rev. J. S. Tozer. Fr. 

 Summer. — I agree with my valued correspondent last mentioned, that 

 this is a very puzzling moss. That gentleman has shown the peris- 

 tome to be very different from that of T. patens, with which I had 

 united it, and indeed that in many respects it is more allied to Grimmia 

 trichophylla : but it is much stouter in all its parts and has the leaves 

 more lax. 



** Fruitstalks straight. 



• 3. T. lanuginosum, Hedw. (woolly Fringe-Moss); stems elon- 

 gated subpinnate, leaves lanceolato- subulate acuminate their 

 long diaphanous points serrated, margins recurved, capsule 

 ovate, fruitstalks short on lateral branches, lid rostrate. Hedw. 

 St. Cr. v. 3. L 2. Turn. Muse. Hib. p. 38. Fl. Brit. p. 1240. 



