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obtusa caviuscula marginibus integris erectis; perianthium 

 oblongum folia involucralia bifida vix superans apicem versus 

 obtuse plicatum, ore ciliato. 



Srhagnaecetis sandvicensis J. A°M. Caulis pro- 

 cumbens ramosus, ramis flagellifero-ramosis; folia rotundo- 

 oblonga semiverticalia plana vel concaviuscula ; marginibus 

 planis submarginata ; amphigastria in ramulis attenuatis ovata 

 obtusiuscula apicem versus parce serrulata; perianthium in 

 ramulo brevi a ventre caulis ortum a basi cylindrica acumi- 

 natum apicem versus obtuse trigonum; folia involucralia 



connata. 



DifFert ab aliis hujus generis speciebus foliis planis vel 



convexiusculis, baud excavatis. 



Lejeunia alpina J. A°M. Caulis repens dichotome 



ramosus, ramis plus minus longis; folia subcontiguahorizontalia 



vix decurrentia oblique ovato-oblonga apice rotunda + o-deflexa 



et inaequaliter parce dentata, basi subtus brevissime compli- 



cata, lobulo minutissimo; amphigastria parva subrotundo- 



cuneata paulo decurrentia patentia, marginibus integerrimis 



reflexa. 



Lejeunia gibbosa J. A°M. Caulis caepitose repens 



inordinate romosus; folia imbricata subhorizontalia divaricata 



oblique ovato-oblonga obtusa apice deflexa basi complicata, 



lobulo subsaccata brevi inflexo transeunte tecto; amphigastria 



subimbricata transverse rotundata medio gibba, margine 



reflexo integerrimo ; perianthia in apicibus ramorum obovata 



compressa ventre bicarinata dorso unicarinata, apicem versus 



margine et costis nodulosa. 



"Lejeunia Andersonii J. A°M. Caulis ^ repens fili- 

 formis exilis; folia approximata alterna subverticalia patula 

 ovata acutiuscula ? margine dorsali subdentato subtus convo- 

 luto-complicata, lobulo explicato apicem versus emarginato 

 unidentato; amphigastria parva distsantia bifida ; laciniis rectis 

 obtusiusculis, perianthium laterale cyatiforme 5-angulatum 

 ore 4 — 5-lacinulato ; folia involucralia parva dentata. 



Lejeunia angulata J. A°M. Caulis repens filiformis 

 ramosus; folia subverticalia approximato-alterna patula ads- 

 cendentia e basi angusta subtriangularia, margine lateris 

 superioris subtri-cuspidata, cuspidibus unguiformibus, subtus 

 sinuato-complicata, lobulo convoluto trenseunte; amphigastria 

 parva distantia bifida, laciniis rectis plus minusve divergen- 

 tibus; perianthia in ramulo brevi lateralia 5-costata primum 

 clavata apiculata dein subpyriformia ore dentibus 4 conicis 

 patentibus cincto; folia involcralia parva laciniata. 



Habitat parasitice in caulibus et foliis Cryptopodii bar- 



tramioidis rara. 



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