4r 
B8 
basi coaretata brevissima oblongata brevissime acuminata 
parum concava, nervo longiuseulo dorso in acieulum 
exeunte, e cellulis linearibus densiusculis areolata, mar- 
gine supero argutius dentata. Fructus ignotus. Species 
dubia. 
No. 144. Hypnum (Brachythecium) eupopu- 
leum n. sp.; monoieum; cespites tenelli pallide flavidi 
subappressi; caulis filiformis ramis brevibus vage divisus; 
folia caulina parva imbricata ramulos veluti lanatos cau- 
daeformes sistentia, e basi ovata lanceolata in acumen lon- 
giuseulum attenuatum vel cuspidatum semitortum dentieu- 
latum producta, margine infero plus minus revoluta, pli- 
eata, e celluiis elongatis linearibus densiuseulis areolata; 
perich. multo minora squarrosula piliformi-euspidata; theea 
in ped. pro plantula longiuseulo tenui glabro rubro mi- 
nuta ovalis, evacuata e collo brevi turgide et breviter 
ovalis ore eonstricta, annulo parvo, opereulo conieo brevi 
acutiusculo; perist. normale duplex, internum haud per- 
tasum, eiliis 3 interpositis. Ex affinitate Hypni populei, 
teneritate et exiguifate partium omnium prima fronte 
distinguendum. 
No. 132. Hypnum (Tamariscella) siphotheca 
c. Müll. 
No. 133. Hypnum (Tamariscella) Frontinoae 
n. sp.; monoicum, minutulum rigidissimum, ramulis bre- 
vissimis remotiusculis simplieiter pinnatum tenerrimum 
viride, paraphylliis brevissimis plus minus dense obtectum; 
folia caulina parva trigono-ovalia breviter acuminata valde 
scabro-papillosa, nervo mediano, cellulis rotundis; perich. 
