53 
61. Polytrichum Brasiliense Hpe., nova species. 
Elatum pedale adscendens basi subnuda acrescendo-folia- 
tum 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 lamellali latioribus an- 
guste rectangulis intensius coloratis diaphanis lamina obscura 
subito lanceolato-subulata canaliculata margine angusto versus 
apieem folii remote spinuloso-dentata acurnine breve hyalino ar- 
gute dentata, deritibus hyalinis dorso scabris; perichætialia longe 
vaginantia erecla fere uncialia, interiora tota hyalina nervo slriato 
percursa tenerrime reticulata, vel toto margine membranacea pel¬ 
lucida, apice hyalina indistiucte denticulata nervo lamelloso per¬ 
cursa. Seta 3-uncialis pallide spadicea apice attenuata erecla. 
Theca tetraedra cuprea leptoderma oblonga apophysata subhori- 
zontalis, 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 , formæ 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 strictiuseulum simplex 4-pollicare, 
basi attenuatum purpurascente tomentosum, superne parce incras- 
satum olivaceo-viride. Folia brevia sicca accumbentia, humida 
erecto-patula, comalia conferta magis connivenlia, caulina e basi 
vaginante cuneata, cellulis lateralibus lævioribus parallelogram- 
micis superioribus rectangulis quadratisque pellucido-hyalinis, 
latere nervi plani obscure diaphani anguste rectangulis isabellinis 
noduloso-interruptis; lamina parva rehexa subito anguste canali- 
culato-lanceolata tota nervo conflalo opaca, margine remote den- 
tata, dentibus pallide sanguineis apice folii approximatis, dorso 
