Musei, by W. Wilson.) FLORA OF TASMANIA. 183 
Tribe X. ORTHOTRICHEE. 
Gen. XXIV. MACROMITRIUM, Bridel. 
Peristomium duplex vel simplex, interdum 0; externum intus sub ore capsule adnatum, dentes 16, 
per paria plus minus approximati, plani, lanceolati ; internum, membrana multifida lacera. Calyptra conico- 
mitreeformis, longitudinaliter plicata sulcatave, basi haud appendiculata, inferne in plures lacinias partita, 
glabra vel pilosa. Capsula ovata, basi attenuata, vix apophysata, zequalis, erecta, exannulata, longipedun- 
culata, pachyderma, ore siccitate sepius plicis octo contracta. Opereulum rectum, rostratum.—Folia mul- 
tifaria, lanceolato-oblonga ; areolis minimis, circularibus, punctiformibus. Caulis repens; surculis erectis, 
confertis. 
1. Macromitrium microstomum (Hook. et Grev. Brewst. Ed. Journ. Sc. v. p. 114. t. 4) ; foliis 
patulis subincurvis ligulato-lanceolatis obtusis apiculatis papillosis siccitate crispatis laxe areolatis nervo 
rubello, capsula ovali levi apice plieato, calyptra pilosiuscula. 
Has. Hobarton, etc.; rocks, at an altitude of 1400 feet, (J. D. H.) (Gunn, 29.) 
DIsTRIB. New Zealand. 
2. Macromitrium Reinwardti (Schwegr. Suppl. ii. p. 69. t. 173); monoicum, foliis patentibus 
incurviusculis siccitate crispulis e basi lanceolata anguste acuminatis canaliculatis areolis basi elongatis 
superne guttulatis, pericheetialibus late lanceolatis acuminatis excurrentinerviis, capsula in pedunculo elon- 
gato ovata brevicolla laevi ore plicata, peristomii dentibus 16 angustis, calyptra SS 
Ha». (Specimen very scanty and imperfect. — (Gunn.) 
DISTRIB. Java. 
3. Macromitrium pusillum (Mitten, in Journ. Linn. Soc. ined.); “ dioicum?, M. microstomo 
simillimum, foliis siccitate spiraliter tortis madore patentibus lineari-lanceolatis apice breviter apiculatis 
nervo fusco sub apice evanido carinatis integerrimis cellulis basi angustis elongatis superioribus rotundatis 
diametro circiter 4; unciee metientibus breviter papillosis distinctis, perichzetialibus internis brevioribus 
ovatis acuminatis, theca in pedunculo circiter trilineari ovali plicata, ore intensiore colorato, calyptra nuda." 
(Tas. CLXXIII. Fig. 5.) | 
Has. On stones: Cataract Hill, Archer. 
Leaves longer and narrower than those of M. microstomum, with cells far larger, those of the last-named 
species having a diameter of 44,4 of an inch. Mitten, 1. c.—PrATz CLXXIII. Fig. 5; 1 and 2, leaves; 3, capsule ; 
4, calyptra :—all magnified. 
4. Macromitrium Archeri (Mitten, in Journ. Linn. Soc. ined.) ; “ M. hemitrichodi simillimum, 
foliis siccitate tortis subcrispatis madore patentibus inferne ellipticis inde lanceolatis obtusiusculis nervo 
excurrente carinatis brevissime apiculatis margine minutissime eroso cellulis basi pro spatio brevi elongatis 
mox in rotundatis transeuntibus papillosis apicem versus obscurioribus, pericheetialibus brevioribus duplo 
latioribus acutis, theca in pedunculo tri-quadrilineari elongato ovali sub ore intensiore colorato plicata, 
peristomio nullo ?, operculo subulato, calyptra nuda.” (Tas. CLXXIII. Fig. 6.) 
Haz. On trees: Cheshunt, Archer. On dead branches of trees: Kermandie Rivulet, O/dfield. 
Fulvous. In size and general appearance scarcely different from M. hemitrichodes, to which, at least in part, 
belongs M. amoenum, Hornsch., according to authentic specimens, but in the present the leaves, although agreeing 
in form, have their cells more widely separated, rather larger, and not obscure, as in M. hemitrichodes, in which too 
the leaves are smoother. Mitten, l.e.—Pıate CLXXIII. Fig. 6; 1 and 2, leaves; 3, capsule and calyptra; 4, ditto, 
with operculum :—all magnified. 
