538 MUSCI ANTARCTICI. 
the structure of the cauline leaves, though the 
habit is that of A. Rothii). 
— folia lanceolata-subulata, falcato-secunda, obtusius- 
cula, nervo validiore, perichetialia longiora, convo- 
luta, (intima eriervia). 10. A. Rothii, Mohr. 
— folia lanceolato-subulata, falcato-secunda, obtusius- 
cula, nervo crasso, latiori. 11. A.crassinervia, Bruch. 
(This, though retained by Bruch as a species, 
appears to have less claim to that distinction than 
A. Grimsulana). | 
— folia lineari-subulata (longissima) falcato-secunda, 
nervo crasso excurrente, vel totam angustiorem 
folii partem replente. 12. A. subulata, Harvey. 
[variat foliis minus falcatis, perichetio sub- 
nullo ; A. perichetialis, Hook. fil.] 
2. Theca cylindrica, e basi ad medium et ultra indehiscens, 
apicem versus tantum in valvulis 4 vel 8 fissa. - 
2. (Acroscuisma, Hook. fil. et Wils.) 
1. A. Wilsoni, Hook. fil. 
2. Gymnostomum, Hedw. 
8. Gymnostomum (Eucladon) complanatum, nov. sp.3 SUF 
culis erectis fasciculatis complanatis, foliis trifariis laterali- 
bus patentibus verticalibus elliptico-lanceolatis acutiusculis 
- integris nervo subcontinuo, dorsalibus erectis apice opa 
subrotundis apiculatis nervo subcontinuo, perichætialibus 
. longioribus erectis linearibus, theca erecta elliptico-oblonga 
ore angustato-annulato, operculo longirostrato, calyptra di- 
midiata. 3 
Has. New Zealand. On the stem of a tree-fern, growmg 
with Rhizogonium piliferum, nobis. 
This curious Moss will probably form the type of ^ »- 
genus, analogous to Hypopterygium of Bridel, for which we 
propose the above name of Eucladon. We have not seen any - 
mature capsules, but in those which clearly show the annulus, — 
we find no trace of peristome; In habit it is allied to Tun "d 
phis and Schistostega. Inflorescence dioicous and t sd 
