TRICHOSTOMUM. 



remarkable for the length and flendernefj of its hairs. 

 Fringe-mofs. — Hedw. Fund. v. 2. 90. t. 8. f. 43, 44, but 

 indifferent. Sp. Mufc. 107. Schreb. Gen. 760. Sm. Fl. 

 Brit. 1235. Engl. Bot. t. 1152. Swartz Mufc. Suec. 29. 

 Turn. Mufc. Hib. 33. (Didymodon ; Hedw. Crypt. 

 V. 3. 8. Sp. Mufc. 104. Schreb. 760. Swartz Mufc. 

 Suec. 27. Swartzia ; Hedw. Crypt, v. 2. 72. Cynonto- 

 dium ; Hedw. Sp. Mufc. 57. Bryi fpecies variae ; Linn. 

 Hudf. ) — Clafs and order, Cryptogamia MufcL Nat. Ord. 

 Mufci. 



Eif. Ch. Capfule oblong. Fringe of thirty-two capil- 

 lary ftraightifh teeth, approximated or united in pairs. 



Tr'ichojlomum of Hedwig has, or ought to have, all the 

 teeth of its fringe minutely connefted together, at the very 

 bafe, in pairs. The genera which the writer of this article 

 lirll prefumed to reduce to the prefent, as above indicated, 

 have diftinct teeth, though thofe teeth neverthelefs approach 

 each other in a fimilar manner. Thefe genera differ among 

 themfelres in having feparated or united flowers. None can 

 be more naturally akin than they all are, and they have 

 been difunited by obfcure and difficult, as well as unnatural 

 marks. Of this fo good a judge as Mr. Turner could not 

 but be aware, and we are happy in having his concurrence. 

 What is faid under the article Dicranum of the general 

 habit of that genus, is in a great meafure applicable to this ; 

 except a remarkable difference in the afpeil and texture of 

 their fringes. This part in Tr'ichojlomum, inftead of being 

 broad, ilout, tranfverfely furrowed, red, with pale points, n 

 long, flcnder, and of even thicknefs and colour. The fmall 

 and imbranched fpecies of the two genera mod refcmble 

 each other. The great brnnched hoary Trkhofloina, com- 

 prehended under Bryiim hypnoides of Linnsus, Hudfon, &c. 

 are leaft, allied to Dicratnim. We are not aware of any 

 apephyjts, or glandular bafe, to the capfule, in the genus 

 before us. 



The fpecies are commodioufly difpofed in two feftions, 

 diftinguifhedby the feparation or combination of their teeth. 

 Eighteen are natives of Britain, which is about the number 

 that Hedwig reckons up all together. We fhall defcribe 

 the moft remarkable. 



Seft. I. Teeth of the fringe all di/linfl at the bafe. Five 

 Britifti fpecies. 



T. tnfarium. 'Three-ranked Fringe -mofs. Fl. Brit, 

 n. I. Engl. Bot. t. 1707. (Cynontodium trifarium ; 

 Hedw. Sp. Mufc. 57. Swartzia trifaria ; Hedw. Crypt. 

 V. 2. 76. t. 28. Bryum trifarium ; Dickf. Crypt, fafc. 3. 8.) 

 — Leaves lanceolate or awl-(haped, in three rows, keeled, 

 entire. Capfule ovate. Stem branched. — Native of barren 

 hilly ground. Dr. Abbot difcovered it at Clapham fprings, 

 near Bedford. None but a difcerning botanift would dif- 

 tinguifli this little mofs from many others, far more com- 

 mon. The tufts are perennial, fcarcely half an inch high, 

 of a dull rufty green. Leaves with a ftrong, often reddifh, 

 mid-rib, but no briftly point ; the lower ones broadeft. 

 Flowers terminal, each confifting of a few jointed Jlamens, 

 and ftill fewer brown ptftils, of which latter one only comes 

 to perfeftion. Fruit-Jlalk hardly an inch high, rather wavy, 

 bulbous at the bafe, its lower half red. Capfule ereft, fmall, 

 of a ftiining brown. Lid conical, (lightly curved, fcarcely 

 fo long as the capfule. Fringe paler in our fpecimens than 

 in Hedwig's plate, but drawn rather too long in Engl. 

 Bot. 



T. capillaceum. Capillary Fringe -mofs. Fl. Brit. n. 2. 

 Engl. Bot. t. 1 152. (Swartzia capillacea ; Hedw. Crypt. 

 V. 2. 72. t. 26. Bryum capillaceum; Dickf. Crypt, 

 fafc. 1.4. t. I. f. 6. Fl. Dan. t. 1000. f. I. B.aeftivum; 

 Hudf. 485, excluding the fynonym of Dillenius. B. n.i8o6; 



Hall. Hift. v. 3. 44. t. 45. f. i.)_Lcave5 capillary, in 

 two rows ; (Ticathing and dilated at the bafe. Capfule cl- 

 hptic-cyhndrical. Lid conical. Stems very denfcly tufted. 

 —Not uncommon in bogs on the mountains of Scotland, 

 Wales, and the north of England, as well as Switzerland 

 and Sweden, bearing capfulcs in April or May. Though 

 ligured by Hr,!ler, this mofs was little underftood by 

 britilh botanifts, when the writer of the prefent article ga- 

 thered It on the Pentland hills, near Edinburgh, in May 

 1782, and communicated it to Mr. Dickfon, to whom it was 

 new. The ferns are feveral inches high, very flender, rufly, 

 crowded into denfe and wide perennial tufts, foaked in 

 water, and confpicuous for the delicate bright green of the 

 fine capillary leaves which clothe their fum.mer (hoots. The 

 numerous fruit-Jlalks, an inch and half or two inches long, 

 red and fliining, at length zigzag, are of an equally flender 

 and dehcate habit. Capfule ereft, fmall, nearly cylindrical, 

 thin, fmooth, pale (hining brown, darker or tawny at the 

 edge, as is the fmall conical lid. Fed very flender. Fringe 

 brownifh, deciduous. 



T. papillofum. Papillary Fringe-mofs. Fl. Brit. n. 5. 

 Engl. Bot. t. 2533. (Bryum papillofum ; Dickf. Crypt, 

 fafc. 4.12. t. II. f. 5.) — Leaves awl-(haped, keeled. 

 Capfule elliptical, nearly ereft, gibbous on the lower fide at 



the bafe. Lid conical. Stem branched Found by Mr. 



Dickfon alone, on turfy bogs, in the Highlands of Scotland. 

 The flems are branched and level-topped about half an incli 

 high. Leaves dark-green, flender, imbricated every way, 

 entire. Fruitflalks an inch or inch and half high, ter- 

 minal, ereft, red, wMth a cylindrical (heath at tlie bafe. 

 Capfule red-brown, fmooth, with a prominence, like a fhort 

 fpur, at the bafe, which renders tliis fpecies very remarkable 

 and diilinft, but does not fcem to be of the nature of an 

 apophyfts. The lid is conical, fhort. Teeth of the fringe 

 certainly thirty-two. 



Seft. 2. Teeth of the fringe conneHed in pairs at the bafe. 

 Thirtaen Britifli fpecies. 



T. lanuginofum. Toothed Hoary Fringe-mofs. Hedw. 

 Sp. Mufc. 109. Crypt, v. 3. 3. t. 2. Fl. Brit. n. 8. 

 Engl. Bot. t. 1348. (T. ferratum ; Elirh. Crypt, n. 94. 

 Bryum hypnoides a. ; Linn. Sp. PI. 1584. Fl. Dan. 

 t. 476. B. hypnoides polycephalon, lanuginofum, mon- 

 tanum ; Dill. Mufc. 372. t. 47. f. 32.) — Leaves lanceo- 

 late, with a pellucid toothed point. Capfule ovate. Stem 



procumbent, branched in a pinnate manner This, a 



genuine fpecimen of the habit of a Trichoflomum, is a very 

 common mofs in dry mountainous woods, and on expofcd 

 rocks, ftones, walls or heatlis, bearing capfules, tliough 

 rarely, in autumn. The copioiiJly branched, arcliing, 

 elaftic, lezfyjlems compofe large light foft tufts, on which 

 many a tried hunter or botanill has repofed. The leaves 

 are of a dull yellowilTi-grecn, rendered hoary, when dry, by 

 their flat white inflexed points, which are curioudy bordered 

 with fhort, broad, abrupt teeth, in a manner unlike every 

 other fpecies, and not ill refcmbling the cogs of a wheel. 

 Fruitflalks from the fmall br.uiches, lateral, folitary, half an 

 inch long, tawny, twifted when dry. Capfule ereft, brown, 

 fmooth, thick and fhort, with an awl-fhaped lid, and a pale 

 reMiih. fringe. The t)«7 is conical, brown-pointed, fplitting 

 up in many different parts, not all at one fide. 



T. ericoides. Heath-like Hoary Fringe-mofs. Schrad. 

 Spicil. 62. Fl. Brit. n. 9. Engl. Bot. t. 199!. Turn. 

 Mufc. Hib. 38. (T. elongatum; Ehrh. Crypt. 233. 

 B.yum ericoides ; Dickf. Crypt, fafc. 4. 14.. B. hypnoides 

 y ; Linn. Sp. H. 1585. B. hypnoides, erics facie, cap- 

 fulis bavbati's, alpinum ; Dill. Mufc. 371. t. 47. i. H-)— 

 Leaves ovato-laneeolate, recurved, keeled and deeply chan-. 

 G g 2 nellod, 



