Prodromus Bryologiae Argentinicae atque regionum vicinarum. II. 195 
Habitatio. Montevideo, Santa Lacia, in truncis arborum, Sep- 
tembri 1873: Prof. Arechavaleta. Hb. Lund. 1886 misit. 
Foliis catilliformibus obtusissimis vel acuminatulis mollibus laxius 
reticulatis facile cognoscenda species. 
108. Aptychus (Limnobiopsis) circinicaulis n. Sp.; 
tenellus, ramis brevibus nigrescenti-viridibus tenuibus cireinnato- 
eurvatis; folia caulina scalaeformi-imbricata catenulata secunda parva, 
e basi angustiore cochleariformi-ovata et concava heteromorpha ob- 
tusissime rotundata vel breviter acuminata, obsolete binervia, margine 
integerrimo erecta, e cellulis majusculis pellucidis mollibus virentibus 
elliptico-prosenchymaticis reticulata, cellulis alaribus vix ullis pellu- 
cidis; perichaetialia multo minora acuminata; theca in pedunculo 
brevi tenui stricto rubente erecta oblonga sub ore constricta. Caetera 
ignota. 
Habitatio. Paraguay, »bords du Mbay«, in truncis arborum, 
Julio 1881: B. Balansa in Coll. No. 3692. 
Quoad folia Apt. catilliformi simillimus, sed caule eircinnato 
foliisque secundis margine erectis diversus. 
109. Campylium squarroso-byssoides n. sp.; cespituli 
pulvinatuli laete viridissimi maxime intricati; caulis byssaceo-Aili- 
formis longiuscule profusus, ramis similibus brevioribus irregulariter 
divisus; folia caulina et ramulina distincte remote squarroso-patentia 
minuta siccitate plus minus convoluta minuta angusta, madore magis 
patula, e basi angustiore oblonga concava subenervi in subulam lon- 
giusculam acutam parum flexuosam vel strictiusculam attenuata 
setosa, e cellulis angustissimis breviusculis densiusculis areolata, 
ubique remote minutissime denticulata vel integriuscula; perichaetialia 
“ multo majora, e basi vaginacea appressa in subulam elongatam pro- 
tracta pallida tenerius reticulata; theca in pedunculo pro plantula 
longo tenui rubente flexuoso inclinatula minuta, e basi brevissima 
oblonga siccitate arcuata, operculo conico acuto minuto; peristomium 
parvum, externum luteum, internum angustum nec hians dilute 
aurantiacum, ciliolis singulis. 
Habitatio. Argentinia subtropica, Sierra de Tucumän, prope 
Siambön, in fauce riparia montana, 1873: P. G. Lorentz. 
Habitus Campylii Sommerfeltii, sed foliis minutissimis an- 
gustissimis longe subulatis sicco involutis jam diversum. 
110. Eurhynchium cuestarum n. sp,; monoicum; cespites 
lati pulvinatuli lutescentes duriusculi intricati; caulis vagus tenellus 
ramulis brevibus semipollicaribus horridule teretibus subtenuibus cur- 
vatis attenuatis; folia ramulina dense imbricata madore patula robustius- 
cula, e basi excisa parum decurrente impressa late cordato-ovata, 
acumine brevi robusto terminata, subcochleariformi-concava, margine 
