157 
brevibus denticulata, anguste nervosa, cellulis linearibus reticulata, 
hyalina. Seta sesquiuncialis erecta, glabra. Cætera desunt. 
In vicinia Rio de Janeiro: Glaziou (2792). 
Stirps pulcherrima, aut forma H. delicatuli aut species propria? 
83. H. subtamariscinum Hpe. herb. 
Caulis intus durus, rufescente lutescens, pube byssacea laxe 
obtectus, e basi adscendens, arcuatus, apice decurvato-radicans; 
fronde triplicato pinnata, pinnis adscendentibus æquitantibus, vel 
plumoso - explanatis, distichis, ovatis, acuminatis, bipinnatis, rufe- 
scente flavescentibus, pinnulis teretibus.  Folia caulina patula, 
e basi cordata, margine revoluta, concava, profunde plicata, apice 
contracto, lanceolato - acuminata, acumine subtiliter serrulata; nervo 
Crasso lutescente in acumine attenuato evanido, folia dorso aciculis 
brevibus tenerrimis hyalinis pubescentia; cellulis parvis oblongis, 
Papillosis, dense reticulata, minime diaphana; folia pinnularum 
Pårva, sicca appressa, concava, ovata, acuta, dorso et margine 
bapilloso-scaberrima, nervo pallido angusto evanido; folia perichæ- 
tialia e basi rufescente, profunde biplicata, ovato-lanceolata; longissime 
loriformiter acuminata, spinuloso-ciliata, nervo dilatato flavescente, 
apice evanido,  cellulis parallelogrammicis, lævibus reticulata, 
diaphana, archegonia angusta, paraphysibus elongatis circumdata, 
includentia. 
Brasiliæ australi sine loco natali. 
Å priore differt: caule arcuato-prolifero breviore, intensiore colo- 
Tatione, fronde minus explicata, foliis caulinis lanceolato-acuminatis, 
nec, setaceis, foliis perichætialibus loriformiter acuminatis, nec setaceo0- 
Cuspidatis; an Thuidium Brasiliense Mitten? 
84. H. pseudo-recognitum, Syn. Thuidium acuminatum Mitten, 
bag. 579, 
Gracile, laxe prostratum, vage radiculoso -ramosum, triplicato- 
binnatum, rufescente viride.  Caulis tenuis lutescens, nudiusculus, 
Vel parce paraphyllis interrupte obtectus.  Folia caulina latere basi 
te, triangulari cordata, margine revoluto lanceolato-acuminata, 
