= 
Musci, by W. Wilson.] FLORA OF TASMANIA. 187 
imbricatis ovato-oblongis obtusis piliferis siccitate erectis margine reflexis, capsula inclinata obovato-clavata, 
operculo conico-hemispherico.—Schwegr. Suppl. t. 218. Gymnostomum inclinans, Hook. Muse. Exot. 
t. 168. L. flexipile, C. Mueller; conf. Mitten, in Journ. Linn. Soc. ined. 
Has. On moist rocks: top of Grass-tree Hill, etc., near Hobarton. (Gunn, 22, 1586.) (J. D. H.) 
(Lawrence, 259.) (Oldfield.) Cheshunt, Archer. 
Distri. New Zealand. 
2. Leptostomum macrocarpum (R. Br. l.c. p. 322); foliis elliptico-oblongis subobovatis con- 
cavis margine revolutis pilo ramoso terminatis, capsula erecta ovato-oblonga microstoma, operculo obtuse 
conico.—Bryum macrocarpon, Hedw. Muse. Frond. iii. t. 10. 
Has. Mount Wellington, R. Neill. 
DisrgiB. Tahiti, New Zealand, Australia. 
Gen. XXIX. LEPTOTHECA, Schwegr. 
Peristomium duplex; externum, dentes 16, lanceolato-lineares, erecti; internum, membrana tenera 
in cilia totidem linearia cum ciliorum interpositorum rudimentis fissa. Capsula cylindrica, erecta, sequalis. 
Calyptra dimidiata. 
l. Leptotheca Gaudichaudi (Schwegr. Suppl. t. 137); caule erecto ramosiusculo, foliis laxis 
patulo-erectis oblongis e nervo excurrente cuspidatis grosse dentatis, capsula erecta angustata cylindrica.— 
Aulacomnion Gaudichaudii, Mitten, in Kew Miscel. 1857, p. 262 ; idem in Journ. Linn. Soc. ined. 
Has. On moist rocks: Mount Wellington. Johnny's Creek, Dry Hill, Back River. (O/dfield, 226, 
136.) (J. D. H., 1335.) 
DistTrIB. Australia. : 
Inflorescence certainly dioicous (contr. Schwegr.). Perichetial leaves longer and narrower than the rest. 
Annulus large, adhering to the mouth of the capsule. Outer peristome pale-yellow, erect. 
Gen. XXX. MNIOPSIS, Mitten. 
Acrocarpica. Folia cellulis hexagonis areolata. Peristomium externum dentibus 16, internum pro- 
cessibus alternantibus in membrana exsertis. Calyptra mitreformis, parva. 
1. Mniopsis Plumula (Mitten, in Journ. Linn. Soc. ined.) ; “ dioica, gregaria, caulibus simplicibus 
erectis inferne foliis minutis remotis superne majoribus in caule fertili horizontaliter insertis patentibus 
ovatis, comalibus perichztialibusve ligulatis obtusis in caule sterili distichaceis verticalibus oblongo-ovatis 
acutis obtusisve patentibus decurrentibus omnibus integerrimis nervo sub apice evanido, cellulis hexagonis 
limitibus crassiusculis, theca in pedunculo bilineari gracili ovali-cylindrica eeguali, operculo subulato recto, 
peristomio externo dentibus longissimis angustis rubris siccitate incurvis cirrhatisque interno processibus 
ciliiformibus brevibus in membrana brevi exserta, flore masculo feminei simili in caulium apicibus parvo 
capituliforme, antheridiis minutis brevibus, paraphysibus nullis." (Tan. CLXXIII. Fig. 7.) 
Has. Below the quarry, Ovens Creek, Archer; sent also in a barren state by Mr. Oldfield. 
Stems from one-fourth to half an inch high, dull-green, considerably resembling some small species of Fissidens ; 
its affinity is however to Schistostega, with which it agrees in the vertical insertion of the leaves of its barren stems, 
but recedes in the presence of a rather stout nerve and the regular hexagonal cells. In the structure of its peristome 
it approaches to Aulacomnion. The calyptra is smaller in proportion than that of Tetraphis or Tetrodontium. 
Mitten, l. c. —Pıare CLXXIII. Fig. 7; 1-3, plants; 4, leaf; 5, capsule; 6, peristome :—all magnified. 
