TORTULACEiE.] 237 [MolUu. 



Weissia controversa Hedw. Muse, frond, iii, 13, t. 5, B. (1792), Sp. muse. 67 (1801). 

 SwARTZ Muse. suec. 26 (1799). Turn. Muse. hib. 27 (1804). Schkuhr Deutsch. kr. 

 gew. P. II, 52, t. 25 (iSio). ScHWAEGR. Suppl. I, P. I, 77 (1811). Wahlenb. F1. 

 carp. 340 (1814), Fl. ups. 384 (1820). Roehl. Deutseh. fl. iii, 48 (1813), Ann. Wett. 

 ges. iii, g8. Hook. Tayl. Muse. brit. 47, t. 15 (1818), Hook. Fl. sect. P. II, 131 

 (1821), Brit. fl. ii, 22 (1833). Funck Moost. 15, t. 10 (1821). Gray Nat. arr. br. pi. i, 

 731 (1821). Zenk. Dietr. Muse, thuring. II, n. 45 (1822). Nees Hornsch. Bry. germ, 

 ii, P. 2, 42, t. 27, f. 7 (1831). HuEBEN. Muse. germ. 123 (1833). Fl. danica t. 2304, fig. 

 2. Mack. Fl. hib. P. 2, 15 (1836). De Not. Syllab. 234 (1838), Epil. bri. ital. 599 

 (1869). WiLS. Bry. brit. 46, t. 15 (1855). Berk. Handb. br. m. 291 (1863). Hobk. 

 Syn. br. m. 33 (1873). 



Grimmia controversa SciiKM}. ?i3.mm\. Sibth. Fl. oxon. 277 (1794). Smith. Fl. brit. iii, 



1187 (1804), Eng. Bot. t. 1367. Web. Mohr. Bot. Taseh. 133 (1807). VoiT Muse. 



herb. 32 (1812). 

 Bryum controversum Hoffm. Deutseh. fl. ii, 32 (1795). P. Beauv. Mem. Soc. Linn. Par. 



t. 5, f. 5 (1822). 

 Weissia virens Brid. Muse. ree. II, P. I, 69 (1798). Roehl. Moosg. deutsch. 147 (1800). 

 Weissia microdonta et Dicranum xanthodon Hedw. Sp. muse. t. 11 & 30 (1801). 

 Weissia mutabilis Brid. Sp. muse. I, 103 {1806). Mart. Fl. crypt, erl. 112 (1817). 

 Hymenostomum subglobosum Nees Hornsch. Bry. germ, i, 103, t. 12 (1823). Brid. Bry. 



univ. ii, 79. 

 Weissia humiUs,fallax et Bruchiana Nees Hornsch. Bry. germ, ii, P. II, 36, t. 26 — 27 



(1831). 

 Simophyllnm. viridulum Lindb. Rev. crit. icon. fl. danicse 51 (1871). 

 Mollia viridula Lindb. muse, scand. 21 (1879). 



Autoicous ; short, laxly caespitose or subpulvinate, bright green, 

 nearly simple. Leaves when dry, involuto-crispate, when moist erecto- 

 patent, the lower lane, upper longer, comant, flexuoso-patulous, from 

 an oblong concave base with plane margins, lineal lane, the wings 

 above connivent, involute at margin, nerve strong, yellowish excurrent 

 in a short mucro ; cells at base rectang. pellucid, above very minute, 

 opake. Caps, on a rather short pale seta, erect, oval or oblong, 

 occasionally subcylindric, rufescent or fuscous, when dry slightly 

 contracted below the mouth and sulcate ; annulus narrow, lid obliquely 

 subulate, reddish at base, peristome very variable, teeth lineal-lane, 

 often truncate or cleft at apex ; rufo-ferruginous, roughish at back, 

 with 2 — 5 joints. 



Male infl. terminal on the innovations, minute, gemmaceous, bracts 

 ovate, acuminate. 

 Hab. — Banks, roadsides and sandy ground ; common. Fr. 3 — 5. 



Var. p. amblyodon Brid. 



Leaves shorter, oblong-lanceolate ; teeth pale, short and truncate or 

 cloven at apex, lid shorter. 



Syn. — Wiissia amblyodon Brid. Bry. univ. i, 805. Nees Hornsch. op. c. 52, t. 28. 



W. gymnostomoides &• microstoma Nees Hornsch. op. t. 33, t. 25. 



W. viridula, S. amblyodon Bry. eur. 



Hab. — Peaty soil. 



Porth Dafarch {Wilson 1856) I ! Milnthorpe, Syergh fell and Helsingtan Barrows 

 {Barnes 1870) I 1 Malham cove (Nowell) ! Plymstock [Holmes). 



Var. y. gymnostomoides Brid. 



