Prodromus Bryologiae Argentinicae atque regionum vicinarum. III. 117 
Habitatio. Paraguay, in arboribus prope Tupi circa San’Pedro. 
Hb. C. Struck Megapolit. 1893. 
Species tenella pulchella, foliis glauco-viridissimis symmetrico 
formatis facillime cognoscenda. 
87. Sigmatella (Papillidium) microthamnoides n. sp.: 
monoica; cespites pulvinati tenelli lutescentes valde intricati; caulis 
vagus ramis perbrevibus ramulisque brevissimis byssoideo-teneris 
madore plumosis; folia caulina minuta laxius imbricata humore ramulum 
subcomplanatum sistentia, e basi angustiore ovato-acuminata ubique 
serrulata obsolete binervia pallida, e cellulis angustissimis minutis 
tenuiter unipapillosis areolata; perichactialia minora angustiora in 
subulam breviusculam attenuata teneriora; theca in pedunculo pro 
plantula longiusculo rubente inclinata minuta ampullaceo -ovalis 
macrostoma, operculo e basi planiuscula breviter conico recte acuto 
reticulato-tenero; peristomium normale, externum rufescens brevius- 
culum, internum dilute flavum, ciliis longiusculis teneris albis singulis 
vel binis interpositis; annulo latiusculo, 
Habitatio. Argentinia subtropica, Chaco, Tabaccale prope 
Orän: P. G. Lorentz 1873. 
Ex habitüu Hypnum planum Brid. in memoriam redigens tenera 
species, 
88. Limbella conspissatula n. sp.; cespites lati fluitantes; 
rami tenues longiusculis graciles apice plus minus curvati inferne 
nigricantes superne sordide lutescentes; folia pro tribu parva densius- 
cule imbricata appressa, e basi latiuscula oblongo-acuminata, nervo 
crasso ferrugineo in aristam crassiusculam brevem vel longiorem ex- 
cedente valde exarata concava, limbo crasso ferrugineo circumducta, 
e cellulis minutis subellipticis sordidis vix pellucidis areolata. Caetera 
ignota. 
Habitatio. Argentinia Patagonica, in ripa rivuli Sierrae del 
Chaco, 28. Julio 1881: P. G. Lorentz. 
Limbella conspissata Kerguelensis foliis majoribus patulis 
jam toto coelo differt. 
89. Limbella platylomata n. sp.; cespites late fluitantes; 
rami robusti elongati secundifolii inferne nigricantes superne chryseo- 
virides summitate falcati; folia majuscula densiuscule imbricata falcata 
madore patula, e basi breviter decurrente in laminam ovato-acumi- 
natam exeuntia, nervo latissimo crasso virente in aristam crassam 
falcatam protracta, concava, limbo latissimo crasso virente circumducta, 
e cellulis minutis ellipticis densis in membranam crassiusculam con- 
flatis areolata. Caetera ignota. 
Habitatio. Argentinia Patagonica, Naposta chico, 24. Febr. 
Neo De. Lorentz. 
