174 FLORA OF TASMANIA. [.Musci, by W. Wilson. 
articulationibus singulis connexa, humida erecta, sicca incurva vel sinistrorsum subconvoluta, paulisper 
hygroscopica. Calyptra cucullata.—Habitus Trichostomi. Florescentia monoica, fl. masc. axillaris, gem- 
maformis. 
l. Desmatodon nervosus (Br. et Schimp. Bryol. Eur. t. 132) ; caule humili, foliis patentibus sic- 
citate inflexis vel convolutis ovali-oblongis apiculatis concavis margine revolutis, nervo valido superne in- 
crassato spongioso excurrente, capsula ovali-oblonga erecta exannulata, operculo suboblique conico-rostel- 
lato, peristomio dentibus insequalibus. 
Has. On dry earth, banks, etc., abundant, J. D. H.; Cheshunt, Archer. 
Distris. New Zealand, Europe, America. 
Dr. Hooker e specimen has the peristome longer than usual, approaching to that of Tortula. Nearly allied to 
Tortula recurvata (Hook.), but the leaves are shorter and more thickly nerved. 
Gen. XV. TORTULA, Schreb. 
Peristomium simplex ; dentes 32, longissimi, filiformes, sinistrorsum contorti, hygroscopici, basi mem- 
brana brevi vel in tubum producta coaliti. Capsula erecta, oblonga, annulata. Opercudum conicum, oblique 
subulatum. 
l. Tortula Knightii (Mitten) ; “monoica, habitu statura coloreque 7. Northiane simillima, foliis 
siccitate crispatis humido patentibus e basi paululum latiore subovata lanceolatis apice acuminatis, comalibus 
sensim ad apicem angustatis lanceolatis marginibus undulatis integerrimis nervo concolore excurrente 
mucronatis, cellulis basi hyalinis elongatis utrinque ad margines altiore quam in medio adscendentibus 
subito in minutas virides obscuras transeuntibus, perichetialibus longioribus paululo latioribus, theca in 
pedunculo rubro cylindrica, operculo subulato, theca dimidio breviore peristomio et flore masculo 7. 
Northiana.” — Mitten, in Journ. Linn. Soc. ined. T. ceespitosa, var., Hook. Jil. et Wils. in Fl. N. Zeal. 
p. 70. (Tas. CLXXIT. Fig. 11.) 
. Has. Wellington Falls, Mount Wellington, Mossman, 
 DisTRIB. New Zealand. 
“ Distinct from T. Northiana (Grev.) = T. cespitosa (Schweegr.) in the much narrower leaves, with undulated 
margins." Mitten, l.c.—PrATE CLXXII. Fig. 11; 1 and 2, leaves; 3, capsule; 4, ditto, with operculum re- 
moved; 5, male flower :—all magnified. 
2. Tortula recurvata (Hook. Musc. Exot. t. 130); monoica, caule humili, foliis patentibus sicci- 
tate erectis inflexis ligulato-lanceolatis concaviusculis nervo crasso excurrente apiculatis margine revolutis, 
seta elongata gracili, capsula oblonga suberecta, annulo simplici, operculo conico-subulato. 
Hap. On wet ground: Mount Dromedary. (Oldfield, 335.) 
DisrRrB. South Africa. 
Nearly allied to Desmatodon nervosus, twice as tall, and of more slender habit.—Zeaves almost ligulate, the 
nerve not so much thickened upwards. Seta very pale reddish, 1 inch long. Capsule elongated, tapering at the 
base and in the upper part, pale reddish-brown. Peristome twisted, and perfectly conformable to the genus. 
9. Tortula torguata (Taylor); foliis confertis erecto-patentibus siccitate spiraliter arctegue con- 
tortis lanceolatis acuminatis integerrimis margine revolutis, nervo valido subexeurrente, capsula erecta 
oblonga, operculo subulato.— Taylor, in Lond. Journ. Bot. v. p. 50 ; Mitten, in Journ. Linn. Soc. ined. 
Has. Cheshunt, Archer. 
4. Tortula Australasiz (Hook. et Grev. in Brewst. Journ. Sc. i. 301. t. 12); caule breviusculo 
