H. W. ARNELL, DIE MOOSE DER VEGA-EXPEDITION. 57 
N. Zemlja gesammeltem Material nachgewiesen; später ist 
sie auch, in Ost-Grónland von P. Dustw und im Lena-Tal 
von H. NirssoN-EHLE fruchtend gefunden worden. 
Bryum (Eubryum) Lundstroemii ARNELL nov. spec. 
Synoicum, sterile 1 cm altum, fusco-nigrum — obscure 
viride, opacum, innovationibus juvenilibus luteis, tomento 
radiculoso, obscure rubro, papilloso; caule ramoso. Folia 
caulis fertilis ad comam apicalem et imbricatam conferta, late 
ovata, subito in cuspidem brevissimam contracta, concava; 
margo integer vel cuspidem versus obsolete dentatus, inferne 
vulgo reflexus, superne planus, limbo male definito, 1—3 cel- 
lulas lato, apicem versus evanido; nervus fusco-luteus, infra 
euspidem evanidus vel in foliis apicalibus in cuspide se dis- 
solvens; cellulae in medio folio rhomboideae— hexagonales 
13—26 x 33—65 p», basales longiores, rectangulares et saepe 
rubescentes, membranis tenuibus et hyalinis—luteolis, lumi- 
nibus sat parce minute granulosis, vulgo opacis; folia inno- 
vationum magis dissita, inferiora remota, superiora immo 
magis conferta, paullulum longius cuspidata, margine vulgo 
plano, limbo pulchrius luteo. Seta 1,5—2 cm longa, gracilis, 
flexuosa, luteo-rubra, nitida. Theca fere horizontalis— pendula, 
eurvata, pallida, lutea, laevis, nitida; collum sporogonio di- 
midium brevius, raptim incrassatum, rugosum, ab sporogonio 
male limitatum, obscurius coloratum; sporogonium ovatum, 
ad os vix contractum; cellulae exothecii irregulares, vulgo 
rotundate rectangulares, 13—27 x 40—80 v, membranis valde 
flexuosis, crassis et luteis, infraostiales 5—6 cellulas late mi- 
nores et quadratae, marginales applanatae. Operculum conice 
convexum, luteorubrum, nitidum, humiliter apieulatum. An- 
nulus ad operculum adhaerens, duas cellulas altus, hyalinus, 
inferne aurantiacus. Exostomii fundus angustus, 35—45 p 
latus; dentes lutei, papillose punctati, margine dentato vel 
potius erenulato, limbo debili, minute granuloso, apicibus 
hyalinis, dense papillosis, lamellis ventralibus 26— 30, inferio- 
ribus magis approximatis. Zndostomii membrana humilis, 
remote minute papillosa; processus e basi sat lata sensim 
acuminati, minute papillosi, hyalini, fenestris ovalibus— fis- 
suriformibus pertusi; cilia bene evoluta, papillosa, appendi- 
culata. Sport (juveniles) 13—16 u, luteoli, glabri, granulis 
et guttis oleineis sat opaci. 
