HEPATIC AUSTRALES. 101 
pinnis | - 2 cm. longis, simplicibus, paucis longioribus interjectis, 
similiter pinnulatis. olia caulina confertissima, oblique patula, 
falcata, canaliculatim concava, in plano ovato-oblonga (2 mm. longa, 
medio 1 mm. lata) ad medium inserta, apice acuta, basi antica 
rotundata, caulem tegentia, integerrima. Cellulae foliorum 
superae 18/18y, basales 18/54, parietibus tenuibus. Lobulus 
folio quadruplo brevior, ovato-triangulatus, carina substricta, 
amplo sinu in folium excurrens, apice quam basis quadruplo 
angustiore, truncato, angulo spina valida porrecta armato. Amphi- 
gastria caulina magna (1mm. longa et lata) transverse inserta, 
subrotunda, medio gibbosa, integerrima. 
Hab. Novae Hebridae (Aneityum): Gunn legit (Watts, 23). 
Chandonanthus difficilis St., n.sp. 
Sterilis magna robusta rigida, flavo-rufescens, terricola, laxe 
intricata lateque expansa. Caulis ad 7 cm. longus, simplex vel 
parum longeque ramosus. /olia caulina confertissima, valde con. 
cava, squarrose patula, in plano 3°4 mm. lata, 2 mm. longa, pro- 
fundissime quadrifida, laciniis canaliculatim concavis, cuspidatis, 
remote grosseque spinosis, inaequalibus, lacinia supera valde 
irregulariter armata, spinis plus minus longis, validis vel angustis 
iterum spinosis vel nudis, hamatis vel strictis, laciniae reliquae 
latiores, apice grosse trifidae, sparsim valideque spinosae, lacinia 
quarta ultima integerrima. Amphigastria caulina parva, breviter 
bifida, marginibus ubique irregulariter spinosis. 
Hab. Novae Hebridae (Aneityum): Gunn leg. (Watts, 29). 
Chandonanthus fragillima St., Aneityum: comm. Gunn, 
per Rev. D. Lillie. 
Chandonanthus hamatus St., Aneityum and Futuna: com. 
Gunn, (Herb. Watts). 
Cheilolejeunea hamata St., n.sp. 
Dioica major gracillima, viridis, flaccida, corticola, dense depresso- 
caespitans meaximeque intricata. Caulis ad 6 cm. longus, bipin- 
natus, ramis primariis 2 cm. longis, ubique remote minuteque 
pinnatis. Solia caulina oblique patula, parum imbricata, concava 
