HEPATIC/ AUSTRALES. 131 
Plagiochila supradecomposita St., n.sp. Aneityum: Gunn, 
1911; (Hb. Watts 33 ex p.) Included in return, but not 
described in this paper. 
Plagiochila Victoriae St., n.sp. 
Sterilis mediocris, rigida, virens, corticola, laxe intricata, valde 
aromatica. Caulis ad 6 cm. longus, simplex vel parum longeque 
ramosus. /Jolia caulina remotiuscula, decurvo-homomalla, in plano 
ovato-trigona (4 mm. longa, medio infero 2:5 mm. lata) asym- 
metrica, margine supero valde arcuata, subangulato, regulariter 
valideque dentato, margine znfero stricto, nudo, apice 0°65 mm, 
lato, oblique truncato, tridentato, dente mediano multo minore, 
Cellulae superae 18/18, basales 18/54y, trigonis magnis acutis. 
Hab. Australia, Victoria (Lorne: leg. Miss E. L. Watts) Hb. 
Watts, 910. 
Pleurozia gigantea Weber. Aneityum: Gunn, 1911; (Hb. 
Watts, 51.) 
Preissia commutata (Ldbg.) Nees. Valley of Waters, 
N.S. Wales. 
Ptychanthus effusus St. Futuna: Gunn, 1911 (Hb. Watts, 
61, 62, 80). 
Ptychanthus rhombilobulus St., n.sp. 
Monoica maxima gracilis rigidula rufescens, corticola, laxe 
intricata lateque expansa. Caulis ad 18 cm. longus, tenuis, 
regulariter remoteque pinnatus, pinnis inferis longioribus, ad 2 cm. 
longis, paucis pinnulis auctis. Jolia caulina imbricata, oblique 
patula, leviter concava, in plano ovata (3°5 mm. longa, medio 
2°25 mm. lata) subsymmetrica, apice apiculata, sub apice utrinque 
paucidentata, margine supero e basi rotundata longe arcuato 
appendiculo basali rotundato, margine infero e basi stricta similiter 
arcuato. Cellulae 14/27 ubique aequales, parietibus validis 
Lobulus parvus, rhombeus (0°6 mm. longus, 0:4 mm. latus) apice 
truncatus, angulo apiculato. Amphigastria caulina magna, late 
cordiformia (2°25 mm. longa, supra basin 2 mm. lata) basi profunde 
