110 FRANZ STEPHANI AND W. W. WATTS. 
caulina conferta, oblique patula, canaliculatim concava, apice arcte 
decurva, in plano late ovata (1:17 mm. longa, medio 0°83 mm. lata) 
brevi basi inserta, basi antica truncato-rotundata, caulem tegentia, 
apice subobtusa, marginibus ubique celluloso-crenulatis. Cellulae 
superae 27/27, basales 36/45 trigonis parvis, parietibus tenuibus. 
Lobulus in situ majusculus, folio plus triplo brevior, carina sac- 
catim rotundata, recto angulo in folium excurrens, apice quam 
basis quadruplo angustiore, recte truncato, sub apice leviter con- 
stricto. Amphigastria caulina magna, similiter crenulata, reni- 
formia (0°75 mm. lata, 0-5 mm. longa) sinuatim inserta, apice ad 
1/3 emarginato-biloba, sinu semirecto, lobis late triangulatis acutis, 
Hab. Insulae Novae Hebridae (Tangoa, Santo): leg. Bowie 
(Watts, 20). 
Isotachis Gunniana Mitt. Wentworth Falls, N.S.W. 
Isotachis inflexa Gotts. Blackheath, N.S.W, 1911. 
Isotachis terricola St., n.sp. 
Sterilis minor rigidula, fusco-brunnea, apicibus dilutioribus, 
terricola, pulvinatim caespitans. Caulis ad 15 mm. longus, simplex 
vel furcatus. Folia caulina valde conferta oblique patula, canal- 
iculatim concava, in plano subrotunda (2°5 mm. longa et lata) 
profunde sinuatim inserta, apice ad 1/3 inciso-biloba, sinu recto, 
lobis late triangulatis acutis porrectis, sub apice utrinque denticulo 
armatis. Gellulae superae 27/27, basales 18/54, parietibus validis, 
cuticula striolata. Amphigastria caulina foliis minora (2:2 mm. 
longa et lata) late obcuneata, apice ad 1/3 inciso biloba, sinu recto, 
lobis triangulatis, apiculatis divergentibus, sub apice utrinque 
unispina, supra basin utrinque denticulo armata. 
Hab. Australia (Blackheath): Watts, 1016. 
Jamesoniella ovifolia Schifin. Aneityum: Gunn., per 
Lillie, 1911. 
Lepidozia appressifolia St. Fitzroy Fallsand Blackheath. 
Lepidozia asymmetrica St. Wyong, Cambewarra and 
Blackheath N.S.W. ! 
