DICRANACE^.] 122 [BracJtydontium. 



This species may be readily distinguished from S. pusilla by its longer 

 leaves and the seta becoming flexuose and arched when moist ; the capsule 

 also is smaller and more globose than in the other species. 



8. BRACHYDONTIUM BRUCH. 



(Fiirnr. in Flora 1827, P. II, 37.) 



Plants very small, densely gregarious ; leaves resembling those of 

 Seligeria. Calyptra mitriform, 5-lobed, conical. Capsule erect, oblong, 

 substriate, with a very broad persistent annulus ; teeth of per. confluent 

 at base, broad, truncate, very short and thin, dotted, and with a few 

 perforations. Deriv. /fy> a x us short, oSous a tooth. 



Schimper states that this genus was founded by Bruch, whose pupil 

 Fiirnrohr published the manuscript notes in Bruch's herbarium without 

 acknowledgment, and perhaps for this reason afterwards altered the name to 

 Brachyodus. The genus Campylostelium, usually associated with this, finds a 

 more natural place with Glyphomitrium. 



BRACHYDONTIUM TRICHODES (Web. Mohr.) Fiirnr. 

 Autoicous ; very small, simple. Leaves lanceolate-subulate, 

 straight. Capsule cylindric-oblong, erect ; lid convex, rostellate. 

 (T. XVII, D.) 



SYN. Gymnostomum trichodes WEB. MOHR Ind. mus. pi. cr. 3 (1803) et Arch. syst. naturges. i, 

 P. I, 124, t. 4, f. i a d (1804) ; Bot. Tasch. 85 (1807). SCHKUHR Deutsch. kr. gew. 

 P. II, 23, t. 10 (1810). ROEHL. Deutsch. Fl. iii, 39 (1813). BRID. Mant. u (1819) ; Bry. 

 univ. i, 58 (1826). NEES HSCH. Bry. germ, i, 184, t. 12, f. 29 (1823). 



Ancectangium trick. SCHWAEG. Suppl. I, P. I, 33, t. 10 (1811). 



Grimmia trich. Eng. Bot. t. 2563 (1813). 



Weissia trich. HOOK. TAY. Muse. br. 45, t. 15 (1818). GRAY Nat. arr. br. pi. i, 730 



(1821). HUEBEN. Muse. germ. 138 (1833). HOOK. Br. Fl. ii, 21 (1833). MACK. Fl. hib. 



P. 2, 14 (1836). 

 Brachydontium trichodes FURNR. in Flora X, P. II, Beil. I, p. 37 (1827). MILDE Bry. 



siles. 89 (1869). 

 Brachyodus trichodes FURNR. op. c. p. 112, et xii, P. II, 594 (1829). NEES HSCH. Bry. 



germ, ii, P. II, 3, t. 25 (1831). BR. SCH. Bry. eur. f. 33 6, Mon. 3, t. i (1846). 



C. MUELL. Syn. i, 416 (1849). WILS. Bry. br. 53, t. 14 (1855). SCHIMP. Syn. 117 



(1860), et 2 ed. 132 (1876). BERK. Handb. br. m. 289, t. 24, f. 3 (1863). DE NOT. 



Epil. 667 (1869). HOBK. Syn. br. m. 36 (1873). JURATZ. Laubm. Oesterr. ung. 71 



(1882). 



Autoicous ; plants gregarious, minute, very slender. Leaves 

 erecto-patent, lanceolate, the nerve excurrent in a semiterete slightly 

 channelled subula; areolation quadrato-hexagonal above, rectangulo- 

 hexagonal at base. Capsule oblong, cylindric, narrowed at base, indis- 

 tinctly striate, when old plicate, leptodermous, pale brown ; seta pale, 

 slender, twisted to the right below and to the left above when dry ; 

 calyptra reaching half down capsule, conical, split into 3 5 lobes ; 

 annulus broad, of 3 series of large cells, separating in fragments ; lid 

 conic, red at base with a straight subulate beak ; teeth 16, very irregular, 



