53 
.64.  Polytrichum Brasiliense Hpe., nova species, 
Elatum pedale adscendens basi subnuda acrescendo-folia- 
tm simplex. Folia accumbentia dense imbricata, humida erecto- 
patentia longissima fere uncialia e basi longe vaginante oblonga 
integerrima, cellulis lateralibus linearibus elongatis pallide lute- 
scente pellucida ad latera nervi minime lamellati latioribus an- 
guste rectangulis intensius coloratis diaphanis lamina obscura 
subito lanceolato-subulata canalieulata margine angusto versus 
apieem. folii remote spinuloso-dentata acumine breve hyalino ar- 
gule dentata, dentibus byalinis dorso scabris; perichetialia longe 
vaginantia erecta fere uncialia, interiora tota hyalina nervo striato 
percursa tenerrime reticulata, vel toto margine membranacea pel- 
lucida, apice hyalina indistincte denticulata nervo lamelloso per- 
cursa. Seta S-uncialis pallide spadicea apice attenuata erecta, 
Theca tetraedra cuprea leptoderma oblonga apophysata subhori- 
jalis, apophysi margine reflexo distincta, operculo margine 
tumido convexo intense rubro, interne concavo planiusculo, api- 
culo tetragono crasso breve coronato. 
Brasilia australis; Glaziou sub Nr. 5199. 
Polytricho communi, forme majori simile, sub lente foliorum 
apicibus hyalinis: folia breviter pilifera — etiam margine angusti- 
ore dentibus spinulosis remotioribus hyalinis differt, 
62.  Polytrichum subgracile Hpe., nova species. 
Subgracile adscendens strictiusculum simplex 4-pollicare, 
basi attenuatum purpurascente tomentosum, superne parce incras- 
satum olivaceo-viride. ^ Folia brevia sicca accumbentia, humida 
erecto-patula, comalia conferta magi$ connivenlia, caulina e basi 
vaginante cuneata, cellulis lateralibus: levioribus parallelogram- 
miis superioribus rectangulis. quadratisque  pellucido-hyalinis, 
latere nervi plani obscure diaphani anguste rectangulis isabellinis 
noduloso-interruptis; lamina parva reflexa subito anguste canali- 
tulato-lanceolata tota nervo conílato opaca, margine remote den- 
lata, dentibus pallide sanguineis apice folii approximatis, dorso 
