AbstractGeocalyxNees is newly recorded from Australia.Chiloscyphus montanusSteph. 1914 (non Col. 1889),C. ramosusSteph. 1922 andG. novaezelandiaeHerz. 1935 are regarded as conspecific withG. caledonicusSteph. 1908. 172. For its branching mode and other charactersIsolembidiumSchust. is regarded as close toDendrolembidiumHerz. andMegalembidiumSchust. (Lepidozioideae) and excluded from the Lembidioideae.I cucullatum(Hodgs. 1962) Schust. 1968 is regarded as conspecific withI anomalum(Rodway) c. n. (≡Lembidium anomalumRodway 1916). 173. An excellent specimen with many perianths from Yorkshire leg. Teesdale in E was chosen as lectotype ofKurzia pauciflora(Dicks.) Grolle. 174. According to art. 57.1Lophocolea cavispina(Hook. f. et Tayl. 1844) Fulf. 1976 is an illegitimate superfluous name, which must be placed in synonymy ofL. austrigena(Hook. f. et Tayl. 1844) Gottscheet al. 1847. Several taxa treated by Fulford 1976 as synonyms ofL. cavispina(Hook. f. et Tayl.) Fulf. are regarded as rather remote good species. 175.Micropterygium tenax(Steph.) c. n. (≡Harpalejeunea tenaxSteph. 1901) has to replaceM. sunnamense(Steph. 1924) Reimers 1933. 176. For theMicropterygium speciesproposed by Reimers (1933) isotypes could be traced in Band JE. Thus the neotypes proposed by Fulford (1966) are abandoned. 177. For the African dendroidPallaviciniaspecies the nameP. spinosa(Lindenb. et Gottsche) c. n. (≡Symphyogyna spinosaLindenb. et Gottsche 1846) is ascertained.Symphyogyna serrataMitt. 1875 (St. Helena) andPallavicinia stephaniiJack 1892 (Transvaal) are synonymous. Key to the 2 African dendroid species of Pallaviciniaceae:Symphyogyna podophylla(Thunb.) Mont. et Nees andPallavicinia spinosa(Lindenb. et Gottsche) Grolle. 178.Plagioehila inoueinom. n. has to replaceP. nudiuseulaInoue 1977 (Galápagos Islands), non Gottsche 1882 (Madagascar). 179.Pleuroeladulanom. n. has to replacePleuroeladaSpruce 1882, nonPleurocladiaA. Braun 1855 (Phaeophyceae). Consequently the binominaPleuroeladula albeseens(Hook.) c. n. andP. islandica(Nees) c. n. are introduced. 180.Porella swailsiinom. n. has to replaceP. apiculata(Herz.) Swails 1970 (Peru), non Chen et Wu 1965 (China).