POTTIOIDEAE. zvcopow. 615 
oblongo - elliptica, deoperculata ore plicato,  6-striata, 
breviter pedunculata, operculo conico brevi recto; perist. 
duplex: dentes externi lanceolati breviusculi latiusculi 
rugulosi, interni ejusdem formae illos aequantes, linea 
longitudinali instructi , pallidi. 
Patria. Chile in ramis arborum: Philippi. Hb. 
Reg. Berolin. 
B. Elati. 
16. Z. pentastichus C. Müll.; dioicus; robustus ela- 
tus, caule repente valde tomentoso, ramis remotis ascen- 
dentibus saepe elongatis flexuosis simplicibus, innovatio- 
nibus ramulosis; folia caulina sicca dense appressa pen- 
tasticha, madefacta squarroso -recurva, e basi erecta lata 
oblonga e cellulis elongatis pachydermibus pellucidis fla- 
vidis v. fuscis igitur fusce striatis flexuosis reticulatà re- 
curva, ovato-acuminata complicata plicata semel torta, 
minute areolata, utraque pagina tenuiter papillosa, inte- 
gerrima; perichaetialia erecta lato-acuminata, intima e 
cellulis ubique elongatis laxiusculis diaphanis basi plus 
minus fusce striatis reticulata; omnia evanidinervia; theca 
in ped. breviusculo purpureo tortili crasso elongate cylin- 
drica erecta brevicolla 8-sulcata fuscescens, operculo 
e conico subito subulato recto; perist. duplicis dentes 
ext. 16 lati carnosuli opaci rugulosi dense approximati 
robusti obtusiusculi linea longitudinali pallida divisi tes- 
sellati, interni: membrana ad basin externorum enata cel- 
lulosa, processibus irregularibus rugulosis, illis dense ad- 
glutinata; calyptra magna laevis straminea nitens. 
Aulacomnion pentastichum Mont. Ann. d. sc. nat. 1845. p. 103. 
et in Gay Hist. de Chile Bot. Crypt. t. 5. f. 1. 
Patria. Chile australis, ubi primus legit Póppig, 
dein C. Gay. 
Archegonia pauca, paraphysibus numerosis strictissi- 
mis intermixtis. — — Zygodon pulcherrimus, e robustissi- 
mis, Z. squarroso soli proximus. 
17. Z. squarrosus C. Müll; laxe cespitosus subra- 
mosus, ramis erectis; folia caulina pentasticha laxa pa- 
' 43 * 
