HEPATICH AUSTRALES. WAG. 
Mastigolejeunea acutifolia St., n.sp. 
Sterilis major flaccida, rufescens, in cortice laxe caespitans, 
longe prostrata. Caulisad 5 cm. longus parum longeque ramosus. 
Folia caulina parum imbricata, subrecte patula, canaliculatim con- 
cava, in plano oblonga (2°75 mm. longa, medio 1:1 mm. lata) 
integerrima, apice minute apiculata, marginibus longe arcuatis, 
basi antica rotundata.. Cellulae superae 18/18 basales 18/54y, 
in vitta 14/36, parietibus validis, trigonis nullis, lobwlus majus- 
culus, oblongus, duplo longior quam latus, carina substricta, stricte 
in folium excurrens, margine supero longe arcuato, apice quam 
basis triplo angustior, excisus, angulo spina longa hamata armato, 
Amphigastria caulina magna, circularia, 1 mm. longa et lata, 
integerrima, 
Hab. Insulae Novae Hebridae (Santo: Bowie leg.; Aneityum: 
Gunn leg.) Watts, 13, 252, 33. 
Mastigolejeuna Wattsiana St. Intermediate Hill, etc., 
Lord Howe Island: leg. Watts, 1911. 
Mastigophora diclados Endl. Aneityum and Futuna: Gunn 
(Hb. Watts, 474 and 74). 
Mastigophora tenuis St., n.sp. 
Sterilis, magna, gracilis flaccida, dilute rufo-brunnea, corticola, 
laxe intricata et pendula. Cauwlisad 8 cm. longus, dense longeque 
ramosus, ramis trunco aequivalidis, 25 mm. longis, vulgo homo- 
mallis, supra basin furcatis. Holia caulina dense imbricata, valde 
concava, in plano 1:4 mm. longa, 1:1 mm. lata, profunde sinuatim 
inserta, basi utrinque spina armata, spinis validis, lanceolatis, 
hamatim recurvis, apice profunde triloba, lobis inaequalibus, supero 
maximo, late lanceolato (0°83 mm. longo basi 0°58 mm. lato), lobulo 
medio parum breviore triplo angustiore, lobulo ¢ertzo (infero) iterum 
angustiore et parum breviore. Cellulae foliorum superae 36/36u 
trigonis giganteis, saepe confluentibus, medio 36/54 basales 36/72 
parietibus minus validis. Amphigastria caulina magna, sinuatim 
inserta, 1 mm. longa, apice ad 2/3 bifida, sinu angusto obtuso, 
laciniis anguste lancolatis, cuspidatis porrectis vel divergentibus, 
