TORTULACE^E.] 273 [Barbula. 



Sect. 4. LEPTOPOGON (Mitt.). Plants dwarf. Leaves yellowish 

 green, short, rather obtuse ; perich. bracts diverse, exserted, convolute. 

 Caps, on a long seta ; peristome very long, contorted. 



14. BARBTJLA CONVOLUTA Hedw. 



Dioicous ; csespitose, very slender. Leaves small, erecto-patent, 

 ovato-lanceolate, the margin a little reflexed below. Perich. bracts 

 convolute, sheathing. Caps, on a long yellow seta, narrowly oblong, 

 lid rostrate. (T. XLI, C.) 



SYN. Musctts minimus pallidus, foliis angustissimis acutis, corniculis tenuissimis RAY Synops. 

 2 ed. 30, n. 9 (1696), p.p. 



Bryum setaceum HUDS. Fl. angl. 409 (1762). NECK. Meth. 212 (1771). LIGHTF. Fl. 



scot, ii, 729 (1777). VILL. PI. Dauph. iii, 880 (1786). 

 Mnium setaceum (non L.) POLLICH PI. palat. iii, 54 (1777). EHRH. Hann. mag. 1780, 



P- 235- 



Barbula sctacea HEDW. Fund. II, 92 (1782), Stirp. cr. i, t. 32 (1787). 

 Barbula convoluta HEDW. Stirp. cr. i, 86, t. 32 (1787), Sp. muse. 120 (1801). TIMM Fl. 



meg. 240 (1788). BRID. Muse. rec. II, P. I, 205 (1798), Mant. 94 (1819), Bry. univ. i, 



569 (1826). ROEHL. Moosg. deutsch. 433 (1800), Deutsch. fl. iii, 80 (1813). SCHULTZ 



Fl. Starg. 305 (1806), Rec. Barb. et. Syntr. 213, t. 33, f. 22 (1823). WEB. MOHR Bot. 



Tasch. 212 (1807). SCHWAEG. Suppl. I, P. I, 127 (1811). VOIT Muse. herb. 96(1812). 



WAHLENB. Fl. lapp. 318 (1812). MART. Fl. cr. erl. 90 (1817). FUNCK Moost. 22, t. 15 



(1821). BR. SCH. Bry. eur. fasc. 13-15, p. 29, t. 16 (1842). RABENH. Deutsch. kr. fl. 



ii, S. 3, 109 (1848). C. MUELL. Synops. i, 614 (1849). BERTOL. Fl. ital. cr. 208 (1858). 



SCHIMP. Synops. 175 (1860), 2 ed. 214. MILDE Bry. siles. 115 (1869). HUSN. Mouss. 



nord-ouest 83 (1873), Muse. gall. 108, t. 30. (1886). JURATZ. Laubm. oesterr.-ung. 118 



(1882). LESQ. JAMES Mosses N. Amer. 127 (1884). 

 Bryum convolutum DICKS. PI. cr. fasc. II, 6 (1790). RELH. Fl. cant. Suppl. 9 (1793). 



WITH. Bot. arr. Br. Veg. 3 ed. iii, 816 (1796). ABBOT Fl. bedf. 37 (1798). HULL Br. fl. 



P. II, 254 (1799). 



Tortula convoluta SCHRAD. Spic. fl. germ. 66 (1794). SIBTH. Fl. Oxon. 285 (1794). 



SWARTZ Muse. suec. 41 (1799). ROTH Fl. germ, iii, P. I, 208 (1800). SMITH Fl. brit. 



iii, 1253 (1804), Eng. Bot. t. 2382. TURN. Muse. hib. 49 (1804). BRID. Sp. muse. I, 261 



(1806). HOOK. TAYL. Muse. brit. 33, t. 12 (1818). GRAY Nat. arr. br. pi. i, 725 (1821). 



HOOK Fl. scot. 128 (1821), Br. Fl. ii, 44 (1833). DE NOT. in Mem. ace. Torin, xl, 314 



(1838), Syllab. 178, Muse. ital. I, 53, t. 25 (1862), Epil. bri. ital. 551 (1869). WILS. Bry. 



br. 127, t. 12 (1855). LINDB. De Tort. 248 (1864). HOBK. Syn. br. m. 67 (1873). 



BERK. Handb. br. m. 255 (1863). 

 Streblotrichum convolutum P. BEAUV. Prodr. 89 (1805), et in Mem. Soc. Linn. Par. i, t. 



5, f. 6 (1822). 



Dioicous ; flat, densely caespitose, pale yellow green above, fuscous 

 below. Leaves erecto-patent, somewhat recurved, crisped when dry, 

 lower ovato-lanc., upper narrowly ligulato-lanc., rather obtuse or some- 

 times pointed, margin plane, subrecurved towards base, nerve vanishing 

 at or below the point ; cells at base pellucid, elongate rectangular, 

 above small quadrate and obscure with chlorophyl, finely papillose. 

 Perich. bracts closely sheathing, exserted, inner convolute, obtuse or 

 shortly apiculate, yellowish, nerveless ; caps, on a long slender yellow 

 seta, narrowly oblong, incurved, rufous bay coloured ; annulus rolling 

 back, lid conico-subulate ; per. long, purple, closely twisted in many 



