171 : 
Ab H.Sellowii Hornsch. simillimo, colore Trufescente foliis 
magis acuminatis, seta breviore, theca urceolatata patula, nec 
oblongo-cylindrica squali differt. 
141. Hypnum pallidius, nova species. 
Monoicum, minus, laxe cespitosum, prostratam, pallens. 
Caulis brevis fusco-fibrillosus, irregulariter ramosus, ramis com- 
planatis brevibus subsimplicibus laxe foliatis. — Folia caulina re- 
'motiora ovato-lanceolata acuminata parce denticulata varie ner- 
vosa, cellulis laxis linearibus utrinque acutis pellucida; ramorum 
folia majora magis approximata complanata distiche patula, minus 
pellucida, basi parce concava late ovato-lanceolata acuminata, 
interdum acumine semel torto setaceo-apiculata parce denticulata, 
nervo pallide lutescente superne (74) evanido; cellulis alaribus 
paucis rectangulis quadratisque pellucidis, ceteris linearibus 
utrinque aculis, pallide diaphana; perichetialia brevia erecto-pa- 
tula vaginante concava late ovata abrupte lanceolato-acuminata 
setaceo-apiculata, vel aristata, integerrima, enervia; cellulis laxis 
subhexagonis, vel rectangulis, nodoso-interruptis Subangulatis, in 
acumine folii angustioribus, diaphana. Vaginula ovata crassa. 
Sela uncialis adscendens rubra levis, apice incrassata incurva. 
Theca brevis subrotundo-urceolaris rubra subhorizontalis, oper- 
culo convexo subconcolore rostrata, rostro recurvo theca breviore; 
peristomii. dentibus extr. lanceolatis rubris subtiliter densissime 
trabeculatis, linea angusta verticali obscura, apice laxius trabe- 
culatis, longe attenuato-setaceis, apice torulosis hyalinis; mem- 
brana interna lutescens producta, cruribus | lanceolatis parum 
brevioribus setaceo-acuminatis apice pertusis, ciliis capillaribus 
parce armatis interjectis. 
Sub Nr. 7484 parce intermixtum. 
A priore colore pallido cauleque latiore laxius foliato, foliis 
magis acuminatis, seta longiore, theca majore, operculo breviore 
recurvo diversum. Ab Hypno Besckeano C. M. colore pallido, foliis 
brevioribus minus dentatis et laxius reticulatis, theca majore 
rubra, nec fuscata differt. 
