87 



HypopterygiumtahitenseJ.A°M. Stipes elongates, 

 ramificatione roteluta, ramulis dense approximate parce 

 dichotomis, folia ovato-oblonga breviter acuminata e cellulis 

 aroplis laxis pellucidis areolata tenuiter marginata vix vel 

 obsolete serrulate, nervo evanido, folia stipulaeformia cordate- ■ 

 rotunda cuspidata vix serrulate tenuiter marginata, nervo 

 evanido; folia perichaetialia ovato-acuminata enervia cavius- 

 cula integerrima. 



Habitat in Tahiti. 



Cylindrothecium Solanderi J. A»M. Caulis. pro- 

 stratus ramosus, ramis elongatis flaccidis pal ide luteis com- 

 pressis, ramulis paucis inaequalibus rregu anter pinnatis; 

 folia laxe conferta, lateralia patentia oblongo-lanceolata brevi- 

 suboblique - acuminata, basi paulo constricta plana, < apicem 

 versus obsolete denticulate, margine erecto, nervis binis 

 brevibus : perichaetia latissime vaginantia laxe reticulata in 

 acumen flexuosum producta, externa breviora acumme prae- 

 primis reflexa; capsula in pedicello flavo longissimo stncto 

 erecta cylindrica fusca, operculo conico; peristoma dentes 

 extern! angusti fere subulati plani remoti trabecular secus 

 lineam divisuralem non lacunosi; interni # processus dentium 

 lom'itudine subulati nodosiusculi non carmati. 



"Cylindrothecium? turgidum J .A °M . Cauli* pro- 

 as ramosus, ramis elongatis flaccidis pallide viridibus 



stratus ramosus, 



stratus raiiiusuo, i*uiw ^w" & i . , . 



turgide compressis, ramulis paucis inaequalibus irregulantu 

 subpinnatusf folia conferta lateralia erecto-patentia anguste 

 ovato-oblonga concava implana brevissime acuminate margine 

 erecto apicem versus denticulate nervis binis brevibus cel- 

 lulis angustissimis laevibus viridibus, alaribusmulte quadratis 

 planis pellucidis vel granulosis. Coetera desunt, 



Papillaria tahitensis J. A°xM Repens ramis elon- 

 gatis nexuosis pendulis pinnatis superne tocentibus; folia 

 Ltenti-erecta laxa hastata basi cordata, aunculis latis , cu 

 cinatis undulatis serratis amplexantia concava longitudinahter 

 nHcata superne sensim angustata integerrima, acumme serm- 

 ^rneiv^ndistincto; cellulae anguste ellipticae punctulatae 

 obscurae, basi infima tantum pellucidae. 



Hupnum (Ectropothecium) tahitense J. A°M. 

 Monoicum, longe repens pinnatum, ramis brevibus sub- 

 aequaUbus' secuf dis ; folia Symmetrica ^"f°}^ 

 ovate longe acuminata, acumme subflexuoso vel stncto 

 integerriml costis obso'letis; cellulae laxissimae lutescenti- 

 vSs perichaetia longe vaginantia apidbus patentia inte- 

 gerrtmkrcapsula in g pedic?llo longiusculo apice arcuate 

 dUptica, operculo convexo mucronato, calyptra laevis. 



