simillimum, sed cellulis multo minoribus densioribus ut 
Philonotis calearsa a Ph. fontana distinetum. Flores ma- 
sculi femineis minores fuscati in vieinia perichaetiorum. 
Diese Art vortritt in Argentinien vollständig das süd- 
brasilianische A. sparsifolium. 
191. Hypnum (Rhynchostegium) glauco-virescens n. 
sp.; monoicum; cespites deplanati glauco -virides leniter 
pallescentes splendentes densiuscule intertexti lati; sureuli 
lepidopiloidei rumis breviuseulis obtusiuseulis gemmula 
minuta laxifolia terminatis vage ramosi complanati madore 
magis turgescenies saepius secundifolii; folia caulina den- 
siuscule imbricata humore patula, e basi impressione an- 
gustiore revolutii cordato-ovata in acumen longiusculum 
acutatum interdım falecatum vix semitortum producta, 
margine erecto basi obsolete apicem versus distinetius 
denticulata, contava saepius carinato-plieata, nervo ultra 
medium evanido angustissimo exarata, e cellulis angu- 
stissimis elongat:s chlorophyllosis apieem versus saepius 
decoloratis et alaribus paueis amplioribus reticulata; 
perich. externa magis reflexa, interna strietiora e basi 
vaginata angusta longe acutate acuminata enervia tenera, 
e cellulis longis laxis pellueidissimis flaccidis reticulata 
vix obsolete denticulata; theca in ped. elongato flexuoso 
rubente apicem versus stramineo summitate arcuato leniter 
nutans vel erectior vix cernuo-ovalis minuscula olivacea 
siceitate ore parum coarctata basi paulisper strumoss 
leptoderma, opereulo e conico longe oblique rostrato 
ochraceo, annulo lato persistente; perist. strietissimi rufo- 
lutei d. ext. norınales, int. maxime secedentes flavi longe 
eapillares vix asperuli, eiliis elongatis singulis capillaribus 
tenerrimis appen-lieulatis hyalinis. 
