Müller, Musci Tschuctschici. 125 



Flos masculus infra femineum, foliis papillosis obtusatulis. Ortho tricho 

 perforato proximum et simile , sed caule graciliore , foliis minoribus nee 

 ligulato-obtusulis incrassate areolatis distinete papillosis rigidis , theca vix 

 emersa minuta angusta levi , calyptra minore angustiore minus elegante et 

 dentibus peristomii minoribus brevioribus minus perforatis fragilibus corneo- 

 membranaceis differt. Ex habitu Orthotricho microblephari Schpr. 

 simile, sed haec species theca exserta distinete plicata et peristomio duplici 

 jam recedit. 



24. Orthotrichum (Orthophyllaria) cribrosum n. sp. monoicum; 

 pulvinuli humiles robusti laxe cohaerentes sordidissime lutescentes vel 

 fuscati deinque nigricantes ; caulis perpusillus ramulis perbrevibus 

 appressis fertilibus parce divisiis subteres crassiusculus : folia caulina 

 densissime imbricata madore nunquara patula , e basi ovato-oblonga in 

 acumen breviusculum apice ligulHto-pungens protracta concava, margine 

 ubique feie valde revoluta integerrima , summitate aetate hyalino- 

 marginata, nervo validiusculo ferrugineo superne solum profunde canali- 

 culato evaniuo percursa, e cellulis densis parvis pachydermis rotundato- 

 hexagouis virentibus valde iucrassatis aetate hexagonis fuscatis basi 

 angüste rectangularibus pallidioribus vel auratis lineas striatas compo- 

 nentibus iiec incrassatis areolata ; perich. cauliiiis sirailia; theca in ped. 

 perbrevi exserta globoso-ovalis brevicolla minuta levis (aetate solum 

 plicata) pallide lutea leptoderma ; calyptra arcte adliaerens eleganter 

 campanulata sordide fusca valde sulcata pilis singulis ad sulcas basilares 

 dispositis byalinis brevibus flexuosis obtecta , perist. duplex: d. ext. 16 

 plerumque per paria aggregati latiuscule lanceolato -acuminati pallide 

 lutei intus couniventes conum sistentes arcte trabeculato-articulati apice 

 ad lineam longitudinalem hiantes cribroso-perforati, interni 8 breviores 

 stricti lineales articulati pallidissimi levissimi basi externis plus minus 

 adglutinati linea media vix notati. 



Patria, Peninsula Tschuctschica, Lütkes-Hafen, 2. Oct. 1881. 



Flos masculus infra femineum , foliis ligulato - acuminatis. — Species 

 distincta, statura pusilla tereti-crassiuscula , foliis incrassato-areolatis , theca 

 globoso-ovali crassiuscule brevicolla , calyptra elegante arcta adhaerente vix 

 hirtula et peristomii duplicis architectura ab omnibus congeneribus raptim 

 diversa. 



25. Orthotrichum (Orthophyllaria) platyblepharis n. sp. ; 

 monoicum; densiuscule pulviiiatum humile sordide luteum ligidiusculum ; 

 caulis pusillus paucirameus; folia canlina erecto-conferta e basi latius- 

 cula lanceolata plus minus longius acumiiiata acutata , margine e basi 

 usque ad acumen valde revoluta integerrima, sed distinctius papulosa, 

 profundius canaliculato-coucava, nervo valido evanido virente percursa, 

 e cellulis basi quadratis vel rectaugularibus tenerioribus pallidis apicem 

 versus magis rotundatis apice majoribus robustioribus subrotundis 

 papillosis grosse areolata; perich. majora latiora longius acuminata; 

 theca in ped. perbrevi vix exserta erecta cylindrica brevicolla levis 

 siccitate solum ö-suK'ata, operculo e basi depressa tenera recte rostellato ; 

 calyptia sordide lut<-a vel fuscata trivialis arcte appressa angusta pilis 

 longis flexuosis angulatis pallidis ubique hirta; perist. duplex: dentes 

 ext. 8 lato-lauceolati per paria aggregati sed densissime cohaerentes 

 distinete articulati integri pallide lutescentes, ciliis internis 8 externos 



