ran 
er Bee DE Ten 
221 
Species tenella elegans, humililate partium omnium vege- 
talium atque capsula minuta pohlioideo-pyriformi ob operculum 
acutiuscula prima inspectione facile cognoscenda Ex habitu 
Bryo microblasto C. Müll. Tschuctschico dense affine, sed fohis 
lato-limbatis, opereulo acuto longiori, theca angustiore longi- 
colla, peristomii dentibus internis integris nec valde hiantibus 
atque ciliolis longis appendiculatis nec rudimentariis certe 
distinetum. 
4. Bryum (Sclerodietyum) bullatum n. sp.; dioieum; perpusillum 
tenellum; perichaetium ramulis paucis brevissimis tenuissimis 
julaceo-teretibus; folia ramulina minuta densissime imbricata 
ovalia brevissime acuminata carinato-concava margine erecta 
integerrima, nervo flavo tenui ante apicem evanido, cellulis 
parvis pellucidis elongatis angustiusculis inanibus tenuibus reti- 
eulata;, perichaetialia majora longiora e basi lanceolata angusta 
in laminam ligulato-attenuatam obtusiusculam producta, nervo 
multo longiore flexuoso tenui carinato rubiginoso percursa, e@ 
cellulis multo longioribus laxioribus fuseidulis tenuibus reti- 
culata; theca in pedicello vix pollicari tenuissimo purpurascente 
nutans minutissima doliolidiaceo-ovalis collo destituta juventute 
bullato-tuberculosa late annulata, operculo cupulato breviter 
conico tenui obtecta, ochracea; peristomii externi dentes parvi 
tenues margine vix cristati; dentes interni angustissimi ciliolis 
nodosiusceulis (?). 
Patria. Alaska, valle Takhin: Dr. Krause Ig. 20. Julio 
1882. 
Ex habitu Bryi julacei quasi dimminutivum, sed foliis minutis, 
reticulatione inani nee conflata atque fructibus minutis dolioli- 
formi-ovalibus bullatis toto coelo diversum, distinctissimum 
elegans. 
5. Dicranum (Oncophorus) dipteroneuron n. sp.; cespites den- 
siusculi radiculosi pollicares; caulis dichotome divisus flexuosus ; 
folia caulina laxo-erecta latiuscula parvula e viridi flavescentia 
splendentia rigidiuscula glabra fiexuosa, madore strictiuscula, 
e basi lata cellulis alaribus planiusculis grossis fuseidulis per- 
multis ornatä in laminam lato-lanceolatam robuste acuminatam 
involutaceam produeta, cellulis grosse prominentibus ad apicem 
veluti abruptum inaequaliter grosse serrata, nervo e basi 
crassiore sensim angustato et canaliculato dorso superne alis 
duabus parallelis serrulatis humilibus angustissimis instructo 
percursa, e cellulis ubique grossiusculis in membranam firmam 
